View ASM706SCPA_269459.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
October 2003 rev 1.0
3/3.3/4.0 V P Supervisor Circuits
Features
* Precision power supply minotor *2.63V threshold (ASM706P/R, ASM708R) *2.93V threshold (ASM706S, ASM708S) *3.08V threshold (ASM706T, ASM708T) *New 4.00V threshold (ASM706J , ASM708J) * * Debounced manual reset input Auxiliary voltage monitor comparator *1.25V threshold *Battery monitor / auxiliary supply monitor * * * Watchdog timer (ASM706P/R/S/T/J) *Watchdog can be disabled by floating WDI 200ms reset time delay Three reset signal options *Active HIGH: ASM706P *Active LOW: ASM706R/S/T/J *Active HIGH and LOW outputs: ASM708R/S/T/J * * DIP, SO and MicroSO packages Guaranteed RESET assertion to VCC = 1.1V
General Description
The ASM706P/R/S/T/J and ASM708R/S/T/J are cost effective CMOS supervisor circuits that monitor power-supply and battery voltage level, and P/C operation. The family offers several functional options. Each device generates a reset signal during power-up, power-down and during brownout conditions. A reset is generated when the supply drops below 2.63V (ASM706P/R, ASM708R), 2.93V (ASM706S, ASM708S), 3.08V (ASM706T, ASM708T) or 4.00 (ASM706J, ASM708J). In addition, the ASM706P/R/S/T/J feature a 1.6 second watchdog timer. The watchdog timer output will trigger a reset if connected to MR. Floating the WDI input pin disables the watchdog timer. The ASM708R/S/T/J have both active-HIGH and active-LOW reset outputs but no watchdog function. The ASM706P has the same pin-out and functions as the ASM706R but has an activeHIGH reset output. A versatile power-fail circuit, useful in checking battery levels and non-5V supplies, has a 1.25V threshold. All devices have a manual reset input. All devices are available in 8-pin DIP, SO and the compact MicroSO packages. The MicroSO package requires 50% less PC board area than the conventional SO package.
Applications
* * * * * * * * Computers and embedded controllers CTI applications Automotive systems Portable/Battery-operated systems Intelligent instruments Wireless communication systems PDAs and hand-held equipment Safety systems
Typical Operating Circuit
Unregulated DC
+3.3V Regulator VCC VCC PFI ASM706 R/S/T ASM708 R/S/T (ASM706 P)
P
R1 RESET (RESET) WDI WDO PFO
RESET (RESET) I/O LINE NMI INTERRUPT
R2
MR
Alliance Semiconductor 2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com
Notice: The information in this document is subject to change without notice
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Block Diagrams
Transition Detector VCC Timebase 20k 20k RESET Generator
WDI
Watchdog Timer
WDO
VCC
RESET
MR
RESET (RESET) ASM706P
MR
RESET Generator
RESET
VCC
+
+ 2.63V (ASM706P/R) 2.93V (ASM706S) 3.08V (ASM706T) 4.00V (ASM706J)
VCC
+
+ 2.63V (ASM708R) 2.93V (ASM708S) 3.08V (ASM708T) 4.00V (ASM708J)
PFI
+ -
PFI PFO
+ -
PFO
1.25V
1.25V
ASM706P/R/S/T/J
GND
ASM708R/S/T/J
GND
Pin Configuration MicroSO
ASM706R/S/T/J 2 7 RESET 6 5 WDI PFO 2 7 6 5 PFO PFI GND RESET 2 ASM708R/S/T/J
DIP/SO
ASM708R/S/T/J VCC 2 7 RESET 6 5 NC PFO VCC
ASM706P
ASM706P
MR
1
MR
2
WDO MR 7 RESET VCC 6 WDI PFO
WDO
ASM706R/S/T/J
8 RESET
1
8
1
8
(RESET) RESET (ASM706P) WDO
1
8
WDI
RESET
1
8 7 6 5
NC PFO PFI GND
GND 3 PFI 4
GND 3 PFI 4
GND 3 PFI 4
MR 3 VCC 4
MR 3 VCC 4
5
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
2 of 16
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Pin Description
Pin Number ASM706P DIP/ SO MicroSO ASM706R/S/T/J DIP/ SO MicroSO ASM708R/S/T/J DIP/ SO MicroSO Manual reset input. The active LOW input triggers a reset pulse. It is pulled HIGH by a 20k pull-up resistor. It is compatible with TTL/CMOS signals when VCC = 5V. It can be shorted to ground through a mechanical switch. Leave folating or connect to VCC if the function is not used. 2 3 4 4 5 6 2 3 4 4 5 6 2 3 4 4 5 6 VCC GND PFI Monitored power supply input. Ground. Power-fail input voltage monitor. With PFI less than 1.25V, PFO goes LOW. Connect PFI to Ground when not in use. Power-fail output. The output is active LOW and sinks current when PFI is less than 1.25V. If not used, leave the pin unconnected. Watchdog input. WDI controls the internal watchdog timer. A HIGH or LOW signal for 1.6sec at WDI allows the internal timer to run-out, setting WDO low. A rising or falling edge must occur at WDI within 1.6 seconds or WDO goes LOW. The watchdog function is disabled by floating WDI. The internal watchdog timer clears when: RESET is asserted; WDI is three-stated ; or WDI sees a rising or falling edge. Not Connected Active LOW reset output. Pulses LOW for 200ms when triggered, and stays LOW whenever VCC is 7 1 7 1 RESET below the reset threshold. RESET remains LOW for 200ms after VCC rises above the reset threshold or MR goes from HIGH to LOW. A watchdog timeout will not trigger RESET unless WDO is connected to MR. Name Function
1
3
1
3
1
3
MR
5
7
5
7
5
7
PFO
6
8
6
8
-
-
WDI
-
-
-
-
6
8
NC
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
3 of 16
October 2003 rev 1.0
Pin Number ASM706P DIP/ SO MicroSO ASM706R/S/T/J DIP/ SO MicroSO ASM708R/S/T/J DIP/ SO MicroSO Name
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Function
8
2
8
2
-
-
WDO
Watchdog output. WDO goes LOW when the 1.6 second interval watchdog timer times-out and does not go HIGH until a transition occurs at WDI. In addition, when VCC falls below the reset threshold, WDO goes LOW. Unlike RESET, WDO does not have a minimum pulse width and as soon as VCC exceeds the reset threshold, WDO becomes HIGH with no delay. Active HIGH reset output. The inverse of RESET.
7
1
-
-
8
2
RESET
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
4 of 16
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
October 2003 rev 1.0
Detailed Descriptions
A proper reset input enables a microprocessor/ microcontroller to start in a known state. ASM706 P/ R/ S/ T/ J and ASM708 R/ S/ T/ J assert reset to prevent code execution errors during power-up, power-down and brownout conditions. RESET/RESET Operation The RESET/RESET signals are designed to start or return a P/C to a known state. With VCC above 1.2V, RESET and RESET are guaranteed to be asserted. During a power-up sequence, the reset outputs remain asserted until the supply rises above the threshold level. The resets are deasserted approximately 200ms after crossing the threshold. In a brownout situation where VCC falls below the threshold level, the reset outputs are asserted. If a brownout occurs during an already initiated reset period, the reset period will extend for an additional reset period of 200ms. The ASM708 devices have dual reset outputs, one active LOW and one active HIGH. The ASM706P has a single active HIGH reset and the ASM706/R/S/T/J devices have an active LOW reset output. Alliance Part # ASM706P ASM706R ASM706S ASM706T ASM706J ASM708R ASM708S ASM708T ASM708J RESET Polarity HIGH LOW LOW LOW LOW HIGH & LOW HIGH & LOW HIGH & LOW HIGH & LOW Watchdog Timer YES YES YES YES YES NO NO NO NO
Manual Reset (MR) The active-LOW manual reset input is pulled high by an internal 20k pull-up resistor and can be driven low by CMOS/TTL logic or a mechanical switch to ground. An external debounce circuit is unnecessary since the 140ms minimum reset time will debounce mechanical pushbutton switches. The minimum MR input pulse width is 0.5s with a 3V VCC input and 0.15s with a 5V VCC input. If not used, tie MR to VCC or leave floating.
Figure 1: WDI Three-state operation By connecting the watchdog output (WDO) and MR, a watchdog timeout forces a RESET to be generated. Watchdog Timer A watchdog timer available on the ASM706P/R/S/T/J monitors P/C activity. An output line on the processor is used to toggle the WDI line. If the line is not toggled within 1.6 seconds on the Watchdog Input (WDI), the internal timer puts the Watchdog Output (WDO) into a LOW state. WDO will remain LOW until a toggle is detected at WDI. The watchdog function is disabled, meaning it is cleared and not counting, if WDI is floated or connected to a three-stated circuit. The watchdog timer is also disabled if RESET is asserted. When RESET becomes inactive and the WDI input sees a high or low transition as short as 100ns (VCC = 2.7V)/ Threshold 2.63V 2.63V 2.93V 3.08V 4.00V 2.63V 2.93V 3.08V 4.00V
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
5 of 16
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
October 2003 rev 1.0
50ns (VCC = 4.5V), the watchdog timer will begin a 1.6 second countdown. Additional transitions at WDI will reset the watchdog timer and initiate a new countdown sequence. WDO will also become LOW and remain so, whenever the supply voltage, VCC, falls below the device threshold level. WDO goes HIGH as soon as VCC transitions above the threshold. There is no minimum pulse width for WDO as there is for the RESET outputs. If WDI is floated, WDO essentially acts as a low supply voltage output indicator. Power-failure Detection With Auxiliary Comparator All devices have an auxiliary comparator with 1.25V trip point. The output, PFO, is active LOW and the noninverting input is PFI. This comparator can be used as a supply voltage monitor with an external resistor voltage divider. As the monitored voltage level falls, PFI is reduced causing the PFO output to go LOW. Normally PFO interrupts the processor so the system can be shut down in a controlled manner.
Bi-directional I/O Pin Supply Voltage VCC BUF Buffered RESET
Application Information
Bi-directional Reset Pin Interfacing The ASM706/8 can interface with P/C bi-directional reset pins by connecting a 4.7k resistor in series with the RESET output and the P/C bi-directional reset pin.
ASM70x
4.7k RESET GND
C or P RESET Input GND
Figure 3: Bi-directional reset pin interfacing
0V
Ensuring the RESET is Valid Down to VCC = 0V When VCC falls below 1.2V, the ASM706R/S/T/J and 708R/S/ T/J RESET reset outputs no longer pull down; it becomes indeterminate. To avoid the possibility that stray charges could build up and force RESET to the wrong state, a pulldown resistor should be connected to the RESET pin, thus draining such charges to ground. The resistor value is not critical. A100k resistor will pull RESET to ground without loading it.
Figure 2: Watchdog timing
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
6 of 16
October 2003 rev 1.0
Monitoring Voltages Other Than VCC The ASM706/708 can monitor voltages other than VCC using the Power Fail circuitry. If a resistive divider is connected from the voltage to be monitored to the PFI input, the PFO will go LOW if the voltage at PFI goes below 1.25V reference. Should hysteresis be desired, connect a resistor (equal to approximately 10 times the sum of the two resistors in the divider) between the PFI and PFO pins. A capacitor between PFI and GND will reduce circuit sensitivity to input high frequency noise. If it is desired to assert a reset in addition to the PFO flag, this may be achieved by connecting the PFO output to MR.
R2 R1 VIN
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
+5V VCC
MR
PFI
ASM70X PFO
GND
RESET
To P
Absolute Maximum Ratings
Parameter Pin Terminal Voltage with Respect to Ground VCC All other inputs Input Current at VCC and GND Output Current: All outputs Rate of Rise at VCC Plastic DIP Power Dissipation (Derate 9mW/C above 70C) SO Power Dissipation (Derate 5.9mW/C above 70C) MicroSO POwer Disspation (Derate 4.1mW/C above 70C) Operating Temperature Range ASM706xE, ASM708xE ASM706xC, ASM708xC Storage Temperature Range Lead Temperature Soldering (10sec)
Figure 4: Monitoring +5V and an additional supply VIN
Min
Max
Unit
-0.3 -0.3
6.0 VCC + 0.3 20 20 100 700 470 330
V V mA mA V/s mV mW` mW
-40 0 -65
+85 70 160 300
C C C C
Note: These are stress ratings only and functional operation is noy implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability.
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
7 of 16
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Electrical Characteristics
Unless otherwise noted, specifications are over the operating temperature range and VCC supply voltages are 2.7V to 5.5V (ASM706P, ASM708R), 3.0 V to 5.5V (ASM706/708S), 3.15V to 5.5V (ASM706/708T) and 4.1V to 5.5.V (ASM706/708J)
Parameter Operating Voltage Range
Symbol VCC
Conditions ASM706xC, ASM708xC ASM706xE, ASM708xE ASM706xC, ASM706xE, MR = VCC, WDI Float-
Min 1.1 1.2
Typ
Max 5.5 5.5
Unit V
Supply Current VCC < 3.6V
ICC
ing ASM708xC, ASM708xE, MR = VCC, WDI Floating ASM706xC, ASM706xE, MR = VCC, WDI Float-
75
140 A
50
140
Supply Current VCC < 5.5V
ICC
ing ASM708xC, ASM708xE, MR = VCC, WDI Floating P and R devices 2.55 2.85 3.00 3.89
75
140 A
50 2.63 2.93 3.08 4.00 40
140 2.70 3.00 3.15 4.10 mV V
RESET Threshold
VRT
S devices T devices J devices
RESET Threshold Hysteresis VCC = 3V (ASM706/8, P/R devices). RESET Pulse Width tRS VCC = 3.3V (ASM706/8, S/T devices). VCC = 4.4V (ASM706/8, J devices). VCC = 5V 4.5V < VCC < 5.5V MR Pulse Width tMR 3.6V < VCC < 4.5V (ASM706/8J devices) VRST (MAX) < VCC < 3.6V (ASM706/8/P/R/S/T devices) 3.6V < VCC < 4.5V (AS706/8J devices) VRST (MAX) < VCC < 3.6V (ASM706/8/P/R/S/T devices) 4.5V < VCC < 5.5V 150 140
200
280 ms
200
ns 500
MR to RESET Out Delay
tMD
750 ns 250
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
8 of 16
October 2003 rev 1.0
Parameter Symbol VIH MR Input Threshold VIL VIH VIL MR Pullup resistor RP VOH VOL RESET Output Voltage (All R/S/T/J devices) VOH VOL VOL ISOURCE = 800A, 4.5V < VCC < 5.5V ISINK = 3.2mA, 4.5V < VCC < 5.5V ISOURCE=500A, VRST(MAX) < VCC < 4.5V ISINK =1.2mA, VRST(MAX) < VCC < 4.5V ISINK = 50A, VCC = 1.1V (ASM706xC, ASM708xC devices) ISINK =100A, VCC = 1.2V (ASM706xE, ASM708xE devices) VOH RESET Output Voltage ASM706P VOL VOH VOL VOH RESET Output Voltage ASM708R/S/T/J VOL VOH VOL ISOURCE = 800A, 4.5V < VCC < 5.5V ISINK = 3.2mA, 4.5V < VCC < 5.5V ISOURCE=500A, VRST(MAX) < VCC <3.6V ISINK =1.2mA, VRST(MAX) < VCC < 3.6V ISOURCE = 800A, 4.5V < VCC < 5.5V ISINK = 3.2mA, 4.5V < VCC < 5.5V ISOURCE=500A, VRST(MAX) < VCC < 4.5V ISINK =1.2mA, VRST(MAX) < VCC < 4.5V VCC = 3V (ASM706, P/R devices). Watchdog Timeout Period tWD VCC = 3.3V (ASM706 S/T devices). VCC = 4.4V (ASM706, J devices). VIL = 0.4V, VIH=0.8VCC, VRST(MAX) < VCC < 4.5V WDI Pulse Width tWP VIL = 0.4V, VIH=0.8VCC, 4.5V < VCC < 5.5V Conditions VRST(MAX) < VCC < 4.5V VRST(MAX) < VCC < 4.5V 4.5V < VCC < 5.5V 4.5V < VCC < 5.5V
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Min 0.7VCC
Typ
Max
Unit
0.6 V 2.0 0.8 10 VCC - 1.5 0.4 0.8VCC 0.3 0.3 V 20 40 k
0.3 VCC - 1.5 0.4 0.8VCC 0.3 VCC - 1.5 0.4 0.8VCC 0.3 V V
1.0
1.6
2.25
s
100 ns 50
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
9 of 16
October 2003 rev 1.0
Parameter Symbol VIH WDI Input Threshold VIL VIH VIL WDI Input Current VOH WDO Output Voltage VOL VOH VOL PFI Input Threshold PFI Input Current VOH PFO Output Voltage VOL VOH ISOURCE = 800A, 4.5V < VCC < 5.5V ISINK = 3.2mA, 4.5V < VCC < 5.5V ISOURCE=500A, VRS(MAX) < VCC < 4.5V ISINK =1.2mA, VRS(MAX) < VCC < 4.5V WDI = VCC, ASM706 only WDI = 0V, ASM706 only ISOURCE = 800A, 4.5V < VCC < 5.5V ISINK = 1.2mA, 4.5V < VCC < 5.5V ISOURCE=500A, VRST(MAX) < VCC < 4.5V ISINK =1.2mA, VRST(MAX) < VCC < 4.5V PFI falling. For P/R devices VCC = 3V. For S/T devices VCC = 3.3V. For J devices VCC = 4.4V VRST(MAX) < VCC < 4.5V VCC = 5V Conditions
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Min 3.5
Typ
Max
Unit
0.8 0.7VCC 0.6 50 -150 VCC - 1.5 0.4 0.8VCC 0.3 1.2 -25 VCC - 1.5 0.4 0.8VCC 0.3 V 1.25 0.01 1.3 25 V nA V -50 150 A V
VOL
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
10 of 16
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Package Dimensions
MicroSO(8-pin)
Inches Min A A1 A2 b C D e E E1 L a 0.0020 0.0295 0.0098 0.0051 0.1142 0.0256 0.193B 0.1142 0.0157 0 0.1220 0.0276 6 Max 0.0433 0.0059 0.0374 0.0157 0.0091 0.1220 Millimeters Min 0.050 0.75 0.25 0.13 2.90 0.65BS 4.90BS 2.90 0.40 0 3.10 0.70 6 Max 1.10 0.15 0.95 0.40 0.23 3.10
SO(8-pin)
Inches Min A A1 B C e E H L D 0.053 0.004 0.013 0.007 0.050 0.150 0.228 0.016 0.189 0.157 0.244 0.50 0.197 Max 0.069 0.010 0.020 0.010 Millimeters Min 1.35 0.10 0.33 0.19 1.27 3.80 5.80 0.40 4.80 4.00 6.20 1.27 2.00 Max 1.75 0.25 0.51 0.25
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
11 of 16
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Plastic DIP(8-pin)
Inches Min A A1 A2 b b2 b3 D D1 E E1 e eA eB eC L 0.015 0.115 0.014 0.045 0.030 0.355 0.005 0.300 0.240 0.100 0.300 0.115 Max 0.210 0.195 0.022 0.070 0.045 0.400 0.325 0.280 0.430 0.060 0.150 2.92 3.81 Millimeters Min 0.38 2.92 0.36 1.14 0.080 9.02 0.13 7.62 6.10 2.54 7.62 10.92 Max 5.33 4.95 0.56 1.78 1.14 10.16 8.26 7.11
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
12 of 16
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Ordering Codes
Operating Temperature Range (C) 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 Reset Threshold 2.63 2.63 2.63 2.63 2.63 2.63 2.63 2.63 2.63 2.63 2.93 2.93 2.93 2.93 2.93 3.08 3.08 3.08 3.08 3.08 4.00 4.00 4.00 4.00 4.00 2.63 2.63 2.63 Watchdog Timer YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO 13 of 16
Part Number
Package
Reset Polarity
ASM706PCPA ASM706PCSA ASM706PCUA ASM706PEPA ASM706PESA ASM706RCPA ASM706RCSA ASM706RCUA ASM706REPA ASM706RESA ASM706SCPA ASM706SCSA ASM706SCUA ASM706SEPA ASM706SESA ASM706TCPA ASM706TCSA ASM706TCUA ASM706TEPA ASM706TESA ASM706JCPA ASM706JCSA ASM706JCUA ASM706JEPA ASM706JESA ASM708RCPA ASM708RCSA ASM708RCUA
8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO
HIGH HIGH HIGH HIGH HIGH LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
October 2003 rev 1.0
Operating Temperature Range (C) -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85 0 to +70 0 to +70 0 to +70 -40 to +85 -40 to +85
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Part Number
Package
Reset Threshold 2.63 2.63 2.93 2.93 2.93 2.93 2.93 3.08 3.08 3.08 3.08 3.08 4.00 4.00 4.00 4.00 4.00
Reset Polarity
Watchdog Timer NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO
ASM708REPA ASM708RESA ASM708SCPA ASM708SCSA ASM708SCUA ASM708SEPA ASM708SESA ASM708TCPA ASM708TCSA ASM708TCUA ASM708TEPA ASM708TESA ASM708JCPA ASM708JCSA ASM708JCUA ASM708JEPA ASM708JESA
8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO 8- Plastic DIP 8-SO 8-MicroSO 8-Plastic DIP 8-SO
Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW Dual: HIGH & LOW
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
14 of 16
October 2003 rev 1.0
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Feature Summary
ASM706P
ASM706R
ASM706S
ASM706 T
ASM706J
ASM708R
ASM708S
ASM708T
ASM708J
Power fail detector Brownout detection Debounced Manual RESET Power-up/ down RESET Watchdog Timer Active HIGH RESET Active LOW RESET Active LOW and HIGH RESETs RESET Threshold (V) 2.63 2.63 2.93 3.08 4.00 2.63 2.93 3.08 4.00
3/3.3/4.0 V P Supervisor Circuits
Notice: The information in this document is subject to change without notice
15 of 16
ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J
Alliance Semiconductor Corporation 2575, Augustine Drive, Santa Clara, CA 95054 Tel: 408 - 855 - 4900 Fax: 408 - 855 - 4999 www.alsc.com
Copyright (c) Alliance Semiconductor All Rights Reserved Part Number: ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J Document Version: 1.0
(c) Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are trademarks or registered trademarks of Alliance. All other brand and product names may be the trademarks of their respective companies. Alliance reserves the right to make changes to this document and its products at any time without notice. Alliance assumes no responsibility for any errors that may appear in this document. The data contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. Alliance does not assume any responsibility or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related to the sale and/or use of Alliance products including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual property rights, except as express agreed to in Alliance's Terms and Conditions of Sale (which are available from Alliance). All sales of Alliance products are made exclusively according to Alliance's Terms and Conditions of Sale. The purchase of products from Alliance does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of Alliance or third parties. Alliance does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant injury to the user, and the inclusion of Alliance products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.

▲Up To Search▲

Price & Availability of ASM706SCPA

	To Download ASM706SCPA Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .