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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
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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
s
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
s
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 VR (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 10m 1m (IRT=20A)
CT=1F CT=0.1F CT=0.01F CT=0.001F
100 10
Ambient Temperature TA (C) 10m 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 10 102 103 10 102 103 RT Resistor (k) RT Resistor (k) 1sec VCC=12V RS=100k VS=10V CT=100F Delay Time tT (s) 100m 1.0 10 100 VS Voltage (V)
10 10
6
Fig. 8 - Delay Time vs. RT Resistor VCC=12V 4day RS=100k CT=100F 1day VS=10V 10hrs CT=10F 60min CT=1F 10min CT=0.1F 1min CT=0.01F
5
104 10
3
102 10
8
MB4214
TIMER SECTION (continued)
Fig. 9 - Output Low Voltage vs. Output Current 10 Output Low Voltage VOL (V) 1.0 100m -30C 10m 1m 0.1m 10 VCC=12V RS=100k 75C 25C
100
1m
10m
100m
Output Current IOL (mA)
COMPARATOR SECTION
Fig. 10 - Input Voltage/Output Voltage vs. Time 6 Input Overdrive 5mV 4 2 0 100 TA=25C 0 0 0.5 1.0 Time (s) Fig. 12 - Input Voltage/Output Voltage vs. Time 6 Input Overdrive 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 1.5 2.0 0.1m 10 100 1.0m 10m 100m Output Current IOL (mA) 20mV 100mV Input Voltage VIN (mV) Fig. 11 - Output Low Voltage vs. Output Current VCC=12V RS=100k 75C 25C 100m -30C 10m 1m
10 Output Low Voltage VOL (V) 1.0
Output Voltage VO (V)
Output Voltage VO (V)
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MB4214
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APPLICATION EXAMPLES
Fig. 13 - Timer
VCC 12V
RS 100k 2 7 1 16 MB4214 3 VR VCT RT CT 5 9 VS 6 R1 R2 17 4 VR
RL
RL
V01 V02
Reset Switch 3.5 tOSC = 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
10
MB4214
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PACKAGE DIMENSIONS
17-LEAD PLASTIC ZIGZAG-IN-LINE PACKAGE (CASE No. : ZIP-17P-M01)
.112.010 (2.850.25)
.876 +.008(22.25 +0.20 ) -.012 -0.30
INDEX
.236.010 (6.000.25)
.310.013 (7.870.33)
.010.002 (0.250.05) .050(1.27) LEAD No. 1 TYP .020.003 (0.500.08) 17
.094(2.40) MIN .100(2.54) TYP (ROW SPACE)
(BOTTOM VIEW)
(c)1991 FUJITSU LIMITED Z17001Z-3C
Dimensions in inches (millimeters)
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MB4214
FUJITSU LIMITED
For further information please contact:
Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 1015, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211, Japan Tel: (044) 754-3753 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 No. 51 Bras Basah Road, Plaza By The Park, #06-04 to #06-07 Singapore 189554 Tel: 336-1600 Fax: 336-1609
All Rights Reserved. Circuit diagrams utilizing Fujitsu products are included as a means of illustrating typical semiconductor applications. Complete information sufficient for construction purposes is not necessarily given. The information contained in this document has been carefully checked and is believed to be reliable. However, Fujitsu assumes no responsibility for inaccuracies. The information contained in this document does not convey any license under the copyrights, patent rights or trademarks claimed and owned by Fujitsu. Fujitsu reserves the right to change products or specifications without notice. No part of this publication may be copied or reproduced in any form or by any means, or transferred to any third party without prior written consent of Fujitsu. The information contained in this document are not intended for use with equipments which require extremely high reliability such as aerospace equipments, undersea repeaters, nuclear control systems or medical equipments for life support.
F9601 (c) FUJITSU LIMITED Printed in Japan
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