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IDT74ALVCH16374 3.3V CMOS 16-BIT EDGE-TRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT EDGETRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS AND BUS-HOLD
* 0.5 MICRON CMOS Technology * Typical tSK(o) (Output Skew) < 250ps * ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 3.3V 0.3V, Normal Range * VCC = 2.7V to 3.6V, Extended Range * VCC = 2.5V 0.2V * CMOS power levels (0.4 W typ. static) * Rail-to-Rail output swing for increased noise margin * Available in SSOP, TSSOP, and TVSOP packages
IDT74ALVCH16374
FEATURES:
DESCRIPTION:
DRIVE FEATURES:
* High Output Drivers: 24mA * Suitable for heavy loads
APPLICATIONS:
* 3.3V high speed systems * 3.3V and lower voltage computing systems
This 16-bit edge-triggered D-type flip-flop is built using advanced dual metal CMOS technology. The ALVCH16374 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. It can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock (CLK) input, the Q outputs of the flip-flop take on the logic levels at the data (D) inputs. OE can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The highimpedance state and the increased drive provide the capability to drive bus lines without need for interface or pullup components. OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The ALVCH16374 has been designed with a 24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance. The ALVCH16374 has "bus-hold" which retains the inputs' last state whenever the input goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistor.
FUNCTIONAL BLOCK DIAGRAM
1O E
1
2O E
24
1C LK
48
2C LK
25
C1
2
C1
1Q 1 2D 1
36 13
2Q 1
1D 1
47
1D
1D
TO 7 OTHER C HANN ELS
TO 7 OTHER CH ANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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(c) 1999 Integrated Device Technology, Inc.
APRIL 1999
DSC-4564/1
IDT74ALVCH16374 3.3V CMOS 16-BIT EDGE-TRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max VTERM(2) Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI < 0 or VI > VCC Continuous Clamp Current, VO < 0 Continuous Current through each VCC or GND -0.5 to +4.6 -0.5 to VCC+0.5 -65 to +150 -50 to +50 50 -50 100 VTERM(3) TSTG IOUT IIK IOK ICC ISS
Unit V V C mA mA mA mA
1OE 1Q1 1Q2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1CLK 1D1 1D2
GND
1Q3 1Q4
GND
1D3 1D4
VCC
1Q5 1Q6
VCC
1D5 1D6
GND
1Q7 1Q8 2Q1 2Q2
GND
1D7 1D8 2D1 2D2
NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. All terminals except VCC.
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT CI/O Parameter(1) Input Capacitance Output Capacitance I/O Port Capacitance Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 5 7 7 Max. 7 9 9 Unit pF pF pF
GND
2Q3 2Q4
GND
2D3 2D4
NOTE: 1. As applicable to the device type.
VCC
2Q5 2Q6
VCC
2D5 2D6
PIN DESCRIPTION
Pin Names xDx xCLK xQx xOE Data Inputs(1) Clock Inputs 3-State Outputs 3-State Output Enable Input (Active LOW) Description
GND
2Q7 2Q8 2OE
GND
2D7 2D8 2CLK
NOTE: 1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os.
FUNCTION TABLE (EACH FLIP-FLOP)(1)
SSOP/ TSSOP/ TVSOP TOP VIEW Inputs xOE L L L H xCLK H or L X xDx H L X X Output xQx H L Q(2) Z
NOTES: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance = LOW-to-HIGH Transition 2. Output level before the indicated steady-state input conditions were established.
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IDT74ALVCH16374 3.3V CMOS 16-BIT EDGE-TRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = -40C to +85C
Symbol VIH VIL IIH IIL IOZH IOZL VIK VH ICCL ICCH ICCZ ICC Parameter Input HIGH Voltage Level Input LOW Voltage Level Input HIGH Current Input LOW Current High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = 2.3V, IIN = -18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC One input at VCC - 0.6V, other inputs at VCC or GND VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VCC = 3.6V VCC = 3.6V VI = VCC VI = GND VO = VCC VO = GND Test Conditions Min. 1.7 2 -- -- -- -- -- -- -- -- -- Typ.(1) -- -- -- -- -- -- -- -- -0.7 100 0.1 Max. -- -- 0.7 0.8 5 5 10 10 -1.2 -- 40 V mV A A A A V Unit V
Quiescent Power Supply Current Variation
--
--
750
A
NOTE: 1. Typical values are at VCC = 3.3V, +25C ambient.
BUS-HOLD CHARACTERISTICS
Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO
NOTES: 1. Pins with Bus-Hold are identified in the pin description. 2. Typical values are at VCC = 3.3V, +25C ambient.
Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current VCC = 3V VCC = 2.3V VCC = 3.6V
Test Conditions VI = 2V VI = 0.8V VI = 1.7V VI = 0.7V VI = 0 to 3.6V
Min. - 75 75 - 45 45 --
Typ.(2) -- -- -- -- --
Max. -- -- -- -- 500
Unit A A A
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IDT74ALVCH16374 3.3V CMOS 16-BIT EDGE-TRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.3V VCC = 2.7V VCC = 3V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V IOH = - 24mA IOL = 0.1mA IOL = 6mA IOL = 12mA IOL = 12mA IOL = 24mA Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA IOH = - 6mA IOH = - 12mA Min. VCC - 0.2 2 1.7 2.2 2.4 2 -- -- -- -- -- Max. -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 V Unit V
NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C.
OPERATING CHARACTERISTICS, TA = 25C
VCC = 2.5V 0.2V Symbol CPD CPD Parameter Power Dissipation Capacitance Outputs enabled Power Dissipation Capacitance Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical 31 16 VCC = 3.3V 0.3V Typical 30 18 Unit pF
SWITCHING CHARACTERISTICS(1)
VCC = 2.5V 0.2V Symbol fMAX tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW tSK(o) Propagation Delay xCLK to xQx Output Enable Time xOE to xQx Output Disable Time xOE to xQx Set-up Time, data before CLK Hold Time, data after CLK Pulse Duration, CLK HIGH or LOW Output Skew(2) 2.1 0.6 3.3 -- -- -- -- -- 2.2 0.5 3.3 -- -- -- -- -- 1.9 0.5 3.3 -- -- -- -- 500 ns ns ns ps 1 5.3 -- 4.7 1.2 4.3 ns 1 6.2 -- 5.9 1 4.8 ns Parameter Min. 150 1 Max. -- 5.3 VCC = 2.7V Min. 150 -- Max. -- 4.9 VCC = 3.3V 0.3V Min. 150 1 Max. -- 4.2 Unit MHz ns
NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = - 40C to + 85C. 2 Skew between any two outputs of the same package and switching in the same direction.
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IDT74ALVCH16374 3.3V CMOS 16-BIT EDGE-TRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
VIH VT 0V VOH VT VOL VIH VT 0V
ALVC Link
TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS
Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V VCC(1)= 2.7V 6 2.7 1.5 300 300 50
VCC 500 Pulse Generator
(1, 2)
SAME PHASE INPUT TRANSITION
VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30
Unit V V V mV mV pF
VLOAD Open GND
tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION
tPHL
6 2.7 1.5 300 300 50
tPHL
Propagation Delay
ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VIH VT 0V VLOAD/2 VLZ VOL VOH VHZ 0V
ALVC Link
VIN D.U.T.
VOUT
RT
500 CL
ALVC Link
Test Circuit for All Outputs
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2ns; tR 2ns.
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch VLOAD GND Open
VIH INPUT VT 0V VOH OUTPUT 1 VT VOL VOH OUTPUT 2 tPLH2 tPHL2
ALVC Link
NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. VIH DATA VT INPUT 0V tSU tH VIH TIMING VT INPUT 0V tREM VIH ASYNCHRONOUS VT CONTROL 0V VIH SYNCHRONOUS VT CONTROL tSU 0V tH
ALVC Link
Enable and Disable Times
Set-up, Hold, and Release Times
tPLH1
tPHL1
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
VT
tSK (x)
tSK (x)
VT VOL
VT
ALVC Link
Pulse Width
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1
Output Skew - tSK(X)
NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
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IDT74ALVCH16374 3.3V CMOS 16-BIT EDGE-TRIGGERED D-TYPE LATCH WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT XX ALVC X Bus-Hold Temp. Range XX Family XX XXX Device Type Package
PV PA PF 374
Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package 16-Bit Edge-Triggered D-Type Flip-Flop with 3-State Outputs
16
Double-Density, 24mA
H 74
Bus-Hold - 40C to +85C
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