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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-29106-2E
ASSP
TIMER
MB4214
LONG PERIOD TIMER The Fujitsu MB4214 is designed for a long period timer. It contains oscillator, divider (13 stages of flip-flop), output circuit, power supply circuit and comparator (2-ch). Arbitrary period is set by external resistor RT, capacitor CT and VS input voltage.
* Time adjustable: 500ms to 100hours * Oscillator period is controlled by VS input voltage * Free running oscillation is achieved * On-chip low power IIL (Integrated Injection Logic) divider * On-chip zener diode to keep stability * On-chip two-pair of comparators * Timer output level: TTL level (open collector) * Plastic 17-pin ZIP Package (Suffix: -PSZ) ABSOLUTE MAXIMUM RATINGS
(See NOTE) (TA=25C) Rating Power Supply Voltage Zener Current Input Voltage Output Voltage Power Dissipation Operating Temperature Storage Temperature NOTE: Symbol VCC IZ VIN VO PD TA TSTG Value 18 20 -0.3 to 18 (VINVCC) 18 620 (TA85C) -30 to +85 -55 to +125 Unit V mA V V mW C C
PLASTIC PACKAGE ZIP-17P-M01 PIN ASSIGNMENT
(FRONT VIEW) 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 V02 V01 +IN-B +IN-A -IN-B -IN-A OUT-B OUT-A GND OSC/FR RST VS CT VR RT VZ VCC
Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
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MB4214
Fig. 1 - MB4214 BLOCK DIAGRAM
VZ 2
VCC 1
+IN-B 15
-IN-B 13
OUT-B 11
+IN-A 14
-IN-A 12
OUT-A 10
Power Supply Circuit
COP. +
COP. +
SQ R Output Stage
16 V01
Reference Voltage Circuit
(Stop) OSC
T
FF1 R
Q
T
FF2 R
QT
FF12 R
Q
T
FF13 R
Q
17 V02
4 VR
6
3
5
8 OSC/FR
7 RST
9 GND
VS RT CT
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MB4214
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PIN DESCRIPTIONS
Pin No. 1 2 Pin Name VCC VZ Power Supply Voltage, 4.5 to 16V Zener Pin VZ pin outputs zener current 20mA max. Unless it is used as stability power supply source, it should be connected to VCC pin through a resistor about 100k. RT Input Pin This pin is provided to connect the time constant of a resistor which controls the oscillator period. Reference Voltage Output Reference voltage of 3.5V is output. This pin can supply the current up to 3mA. CT Input pin This pin is provided to connect a capacitor which controls the oscillator period. VS Input Voltage Input Voltage to this pin controls the oscillator period. Reset Pin Counter operation is interrupted by the instruction of RST pin input level. All counter is cleared when this pin is connected to GND. Power on reset is achieved by connecting a external capacitor. Free Running Oscillator Output When this pin is connected to GND, 4096 times as long as normal oscillator frequency is output. Ground Open Collector outputs
3 4 5 6
RT VR CT VS
7
RST
8 9 10 11 12 13 14 15 16
OSC/FR GND OUT-A OUT-B -IN-A -IN-B +IN-A +IN-B V01
Comparator Inputs
Timer Output Pin NO. 1 The 2048times as long as fundamental oscillator period is kept. Time Output Pin NO. 2 The 4096 times as long as fundamental oscillator period is kept. Owing to free running oscillation, the 4096times as long as oscillator frequency is output.
17
V02
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MB4214
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FUNCTIONAL DESCRIPTIONS
The MB4214 contains reference voltage circuit, oscillator, divider and comparator as shown in Fig. 1. Oscillator frequency is arbitrary controlled by external resistor RT, capacitor CT and VS input voltage. Divider consists of 13 stages of divider circuit which is constructed by IIL (Intergrated Injection Logic) technique. It expands the oscillator period up to 4096times. About 100hours period is achieved by a small capacitor. Free Running Oscillation (Long period low frequency) is achieved when OSC/FR pin is connected to GND.
START RESISTOR RS
RS is a start resistor which controls zener diode current. Zener current is 20mA max and stability zener voltage 6.2V is generated.
RESET FUNCTION
Counter operation is interrupted by the instruction of reset pin (7pin). All counter is cleared when this pin is connected to GND. Power on reset is available by connecting a external capacitor CRS. Power on reset time tPOR is formulated: CRS tPOR = 3.5 ____ (s) IRS
OSCILLATOR PERIOD
Two kinds of oscillator period selecting ways are provided. Divide internal reference voltage by external resistor, to be the VS voltage. RT pin voltage and reference voltage has the 2 : 3.5 ratio. Oscillator period is formulated: 3.5 R2 tOSC = ___ RT CT _______ (s) R1 + R2 2 Providing VS voltage in other power supply source. RT CT tOSC = K_______ VS (s) 2 Note: Conversion value K = 1
FREE RUNNING OSCILLATION
Free running oscillation is achieved when OSC/FR pin is connected to GND. V02 pin outputs 4096times as long as fundamental oscillator frequency. After the voltage is applied or reset is released, V02 keeps 2048times as long as fundamental period. When OSC/FR pin is left open, first divider data is output.
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MB4214
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RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage Timing Resistance Timing Capacitance Operating Temperature Symbol VCC RT CT TA Value 4.5 to 16 10 to 220 0.001 to 100 -30 to +85 Unit V
k
F C
s
ELECTRICAL CHARACTERISTICS
Comparator Section Parameter Input Offset Voltage Input Offset Current Input Bias Current Common-Mode Input Voltage Voltage Gain Output Saturation Voltage Output Sink Current Output Leakage Current Response Time Large Signal Response Time Symbol VIO IIO II VCM AV VOL ISINK IOH tR tRL
RL=15k
( TA=25C, VCC=12V, RS=100k) Value Condition Min -250 0 25 20 Typ 2.0 5 -25 200 0.2 1.3 300 Max 5.0 50 VCC-1.5 0.4 1.0 mV nA nA V V/mV V mA A A ns Unit
IOL=10mA VOL=1.5V VOH=18V
RL=5.1k, VRL=5V RL=5.1k, VRL=5V
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MB4214
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ELECTRICAL CHARACTERISTICS (Continued)
Timer Section Parameter Power Supply Current Zener Voltage Symbol ICC VZ VR Reference Voltage VRT ICT1 Charge Current ICT2 Maximum Oscillation Frequency Reset Input Threshould Voltage Reset Charge Current OSC/FR Output Voltage VOH Stop Input Current Output Saturation Voltage Output Sink Current Output Leakage Current VS Input Current VS Input Voltage VT Setting Error Linearity Error IIST VOL ISINK IOH IIS VINS EA ER CT=0.01F, RT=100k, VS=VR CT=0.01F, RT=100k, VST=0.4V IOL=10mA VOL=1.5V VOH=18V VS=0.4V 3.7 -200 20 -5 0.1 -10 -2.5 4.2 -100 0.2 -1 4.7 0.4 1.0 VCC-2 10 2.5 V A V mA A A V % % fMAX VIL VIH IRS VOL VRS=0V IRT=-200A -220 10 1.1 3.2 -160 1.1 -200 100 1.4 3.5 -100 1.4 -180 1.7 3.8 -60 1.7 Condition Min VCC=12V IZ=0.3 to 5mA VCC=4.5 to 16V, IR=0 to -3m IRT=-200A
IRT=-10A
( TA=25C, VCC=12V, RS=100k) Value Unit Typ 8.0 6.2 3.5 2.0 -10 Max 12 6.7 3.7 2.12 -9 mA V V V A A kHz V V A V 50. 5.7 3.3 1.88 -11
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MB4214
Fig. 2 - LINEARITY ERROR
ER
t (0.1V) -t (3.5V)/ 35 t (3.5V)
x 100 (%)
t
t (3.5V) EA
ER
0
3.5V
VS
OSCILLATOR PERIOD
.. 1. tOSC = K RT CT 2 3.5 2 VS (s)
.. 2. tOSC =
RT CT
R2 R1 +R2
(s)
Note:
Divide internal reference voltage VR by external resistor, to be the VS Voltage.
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MB4214
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TYPICAL CHARACTERISTICS CURVES
Fig. 3 - Power Supply Current vs. Power Supply Voltage 12.0 8.0 4.0 75C 0 0 5 10 15 20 Power Supply Voltage VCC (V) Fig. 5 - Reference Voltage vs. Ambient Temperature Reference Voltage V R (V) 3.54 Oscillator Period tOSC (s) 3.52 3.50 3.48 3.46 3.44 -50 0 50 100 IR=3mA IR=0mA 20C 50C 0C TA=-30C Zener Current IZ (mA) 20 Fig. 4 - Zener Current vs. Zener Voltage
TIMER SECTION
Power Supply Current ICC (mA)
0 5.0
Zener Voltage VZ (V) Fig. 6 - Oscillator Period vs. VS Voltage
7.0
1.0 VCC=12V RS=100k 100m RT=100k (IRT=20A) 10m 1m
CT=1F CT=0.1F CT=0.01F CT=0.001F
100 10 10m 100m 1.0 10 100 VS Voltage (V)
Ambient Temperature TA (C)
Fig. 7 - Oscillator Period vs. RT Resistor 103 102 Oscillator Period tOSC (s) 10 CT=10F 1 CT=1F 10-1 CT=0.1F 10-2 CT=0.01F 10-3 10-4 1 10-1 10 10 RT Resistor (k)
2
Fig. 8 - Delay Time vs. RT Resistor 106 VCC=12V 4day RS=100k CT=100F VS=10V 1day 10hrs CT=10F 60min CT=1F 103 CT=0.1F 102 CT=0.01F 10 1sec 10 102 103 1min 10min
VCC=12V RS=100k VS=10V
105 CT=100F Delay Time tT (s) 10
3
104
RT Resistor (k)
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MB4214
TIMER SECTION (continued)
Fig. 9 - Output Low Voltage vs. Output Current 10 Output Low Voltage V OL (V) VCC=12V RS=100k 1.0 25C 100m -30C 10m 1m 0.1m 10 75C
100
1m
10m
100m
Output Current IOL (mA)
COMPARATOR SECTION
Fig. 10 - Input Voltage/Output Voltage vs. Time 6 Input Overdrive 5mV 4 20mV 2 100mV Input Voltage VIN (mV) 0 100 TA=25C 0 0.1m 0 0.5 1.0 1.5 Time (s) 2.0 10 100 1.0m 10m 100m Output Current IOL (mA) Fig. 11 - Output Low Voltage vs. Output Current 10 Output Low Voltage V OL (V) VCC=12V RS=100k 1.0 25C 100m -30C 10m 1m 75C
Output Voltage VO (V)
Fig. 12 - Input Voltage/Output Voltage vs. Time Output Voltage VO (V) 6 4 100mV 2 20mV Input Voltage VIN (mV) 0 100 TA=25C 0 0 0.5 1.5 1.0 Time (s) 2.0 5mV Input Overdrive
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MB4214
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APPLICATION EXAMPLES
Fig. 13 - Timer
VCC 12V RL RL
RS 100k 2 7 1 16 MB4214 3 VR VCT RT CT 5 9 VS 6 R1 R2 17 4 VR
V01 V02
Reset Switch tOSC = 3.5 2 RT CT R2 [s] R1 + R2
Start timing: Rising edge of reset signal Stop timing: Rising edge of V01 output
Reset VCT tOSC
V01 2048tOSC V02 4096tOSC 4096tOSC 2048tOSC
Fig. 14 - Super Low FrequencyOscillator
VCC 12V
RS 2.2k (5.5V) VZ 2 7 1 MB4214 3 5 VCT RT VS CT 8 9 6 17 V02
RL
tOSC = K tPOR = 3.5
RT
CT
2 CRS [s] IRS
VS
[s] CRS VR
VCC VCT tOSC
V02
4096tOSC
4096tOSC
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MB4214
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PACKAGE DIMENSIONS
17 pin, Plastic ZIP (ZIP-17P-M01)
22.25 -0.30 .876 -.012
+0.20
+.008
2.850.25(.112.010)
INDEX
6.000.25 (.236.010)
7.870.33 (.310.013)
0.250.05 (.010.002)
2.40(.094)MIN
1.27(.050)TYP LEAD No.
1
0.500.08(.020.003)
17
2.54(.100)TYP
(BOTTOM VIEW)
C
1994 FUJITSU LIMITED Z17001S-3C-2
Dimensions in mm (inches).
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FUJITSU LIMITED
For further information please contact:
Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211-88, Japan Tel: (044) 754-3763 Fax: (044) 754-3329 North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, U.S.A. Tel: (408) 922-9000 Fax: (408) 432-9044/9045 Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LIMITED #05-08, 151 Lorong Chuan New Tech Park Singapore 556741 Tel: (65) 281-0770 Fax: (65) 281-0220
All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). CAUTION: Customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU sales representatives before such use. The company will not be responsible for damages arising from such use without prior approval. Any semiconductor devices have inherently a certain rate of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Control Law of Japan, the prior authorization by Japanese government should be required for export of those products from Japan.
F9703 (c) FUJITSU LIMITED Printed in Japan
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