FUJITSU MB4214

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
PLASTIC PACKAGE
ZIP-17P-M01
• Free running oscillation is achieved
• On-chip low power IIL (Integrated Injection Logic) divider
PIN ASSIGNMENT
• On-chip zener diode to keep stability
(FRONT VIEW)
• 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=25°C)
Rating
Power Supply Voltage
Symbol
Value
Unit
VCC
18
V
Zener Current
IZ
20
mA
Input Voltage
VIN
-0.3 to 18 (VIN≤VCC)
V
Output Voltage
VO
18
V
Power Dissipation
PD
620 (TA≤85°C)
mW
TA
-30 to +85
°C
TSTG
-55 to +125
°C
Operating Temperature
Storage Temperature
NOTE:
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.
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
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
1
MB4214
Fig. 1 - MB4214 BLOCK DIAGRAM
VZ
VCC
2
1
+IN-B
15
-IN-B
OUT-B
13
+IN-A
-IN-A
12
14
11
COP.
+
Power
Supply
Circuit
OUT-A
10
COP.
+
S Q
R
Reference
Voltage
Circuit
2
T
(Stop)
OSC
FF1
Q
6
VR
VS RT CT
3
5
FF2
R
R
4
T
8
OSC/FR
Q T
FF12
R
Q
T
FF13
16 V01
Output
Stage
Q
17 V02
R
7
9
RST
GND
MB4214
■
PIN DESCRIPTIONS
Pin No.
Pin Name
1
VCC
2
VZ
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 100kΩ.
3
RT
RT Input Pin
This pin is provided to connect the time constant of a resistor which controls the oscillator period.
4
VR
Reference Voltage Output
Reference voltage of 3.5V is output. This pin can supply the current up to 3mA.
5
CT
CT Input pin
This pin is provided to connect a capacitor which controls the oscillator period.
6
VS
VS Input Voltage
Input Voltage to this pin controls the oscillator period.
7
RST
8
OSC/FR
9
GND
10
11
OUT-A
OUT-B
Open Collector outputs
12
13
14
15
-IN-A
-IN-B
+IN-A
+IN-B
Comparator Inputs
16
V01
Timer Output Pin NO. 1
The 2048times as long as fundamental oscillator period is kept.
17
V02
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.
Power Supply Voltage, 4.5 to 16V
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
3
MB4214
■
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.
4
MB4214
■
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Value
Unit
VCC
4.5 to 16
V
Timing Resistance
RT
10 to 220
kΩ
Timing Capacitance
CT
0.001 to 100
µF
Operating Temperature
TA
-30 to +85
°C
Power Supply Voltage
■
ELECTRICAL CHARACTERISTICS
( TA=25°C, VCC=12V, RS=100kΩ)
Comparator Section
Value
Parameter
Symbol
Condition
Unit
Min
Typ
Max
Input Offset Voltage
VIO
-
2.0
5.0
mV
Input Offset Current
IIO
-
5
50
nA
Input Bias Current
II
-250
-25
-
nA
VCM
0
-
VCC-1.5
V
Common-Mode Input Voltage
Voltage Gain
AV
RL=15kΩ
25
200
-
V/mV
Output Saturation Voltage
VOL
IOL=10mA
-
0.2
0.4
V
Output Sink Current
ISINK
VOL=1.5V
20
-
-
mA
Output Leakage Current
IOH
VOH=18V
-
-
1.0
µA
Response Time
tR
RL=5.1kΩ, VRL=5V
-
1.3
-
µA
Large Signal Response Time
tRL
RL=5.1kΩ, VRL=5V
-
300
-
ns
5
MB4214
■
ELECTRICAL CHARACTERISTICS (Continued)
( TA=25°C, VCC=12V, RS=100kΩ)
Timer Section
Value
Parameter
Symbol
Condition
Unit
Min
Typ
Max
Power Supply Current
ICC
VCC=12V
50.
8.0
12
mA
Zener Voltage
VZ
IZ=0.3 to 5mA
5.7
6.2
6.7
V
VR
VCC=4.5 to 16V,
IR=0 to -3m
3.3
3.5
3.7
V
VRT
IRT=-200µA
1.88
2.0
2.12
V
ICT1
IRT=-10µA
-11
-10
-9
µA
ICT2
IRT=-200µA
-220
-200
-180
µA
fMAX
10
100
-
kHz
Reference Voltage
Charge Current
Maximum Oscillation
Frequency
Reset Input Threshould
Voltage
VIL
1.1
1.4
1.7
V
VIH
3.2
3.5
3.8
V
Reset Charge Current
IRS
-160
-100
-60
µA
VOL
1.1
1.4
1.7
V
VOH
3.7
4.2
4.7
V
VRS=0V
OSC/FR Output Voltage
6
Stop Input Current
IIST
VST=0.4V
-200
-100
-
µA
Output Saturation Voltage
VOL
IOL=10mA
-
0.2
0.4
V
Output Sink Current
ISINK
VOL=1.5V
20
-
-
mA
Output Leakage Current
IOH
VOH=18V
-
-
1.0
µA
VS Input Current
IIS
VS=0.4V
-5
-1
-
µA
VS Input Voltage
VINS
0.1
-
VCC-2
V
VT Setting Error
EA
CT=0.01µF, RT=100kΩ,
VS=VR
-10
-
10
%
Linearity Error
ER
CT=0.01µF, RT=100kΩ,
-2.5
-
2.5
%
MB4214
Fig. 2 - LINEARITY ERROR
ER
t (0.1V) -t (3.5V)/ 35
x 100 (%)
t (3.5V)
t
t (3.5V)
EA
ER
0
3.5V
VS
OSCILLATOR PERIOD
.
1. tOSC =. K
.
2. tOSC =.
RT CT
2
3.5
2
Note:
RT CT
VS (s)
R2
(s)
R1 +R2
Divide internal reference voltage VR by external resistor, to be the VS Voltage.
7
MB4214
■
TYPICAL CHARACTERISTICS CURVES
Fig. 3 - Power Supply Current vs.
Power Supply Voltage
12.0
Fig. 4 - Zener Current vs.
Zener Voltage
20
TA=-30°C
8.0
20°C
4.0
75°C
0°C
50°C
0
0
5
10
15
20
Zener Current IZ (mA)
Power Supply Current I CC (mA)
TIMER SECTION
0
5.0
Power Supply Voltage VCC (V)
Fig. 6 - Oscillator Period vs.
VS Voltage
3.54
IR=0mA
3.50
IR=3mA
3.48
3.46
3.44
-50
0
50
100
Oscillator Period t OSC (s)
Reference Voltage V R (V)
Fig. 5 - Reference Voltage vs.
Ambient Temperature
3.52
Zener Voltage VZ (V)
1.0 VCC=12V
RS=100kΩ
100m
RT=100kΩ
10m
CT=0.01µF
CT=0.001µF
100µ
10µ
10m
Fig. 7 - Oscillator Period vs.
RT Resistor
103
Delay Time tT (s)
Oscillator Period t OSC (s)
VCC=12V
RS=100kΩ
VS=10V CT=100µF
10
CT=10µF
1
CT=1µF
10-1
CT=0.1µF
104
10
Fig. 8 - Delay Time vs.
RT Resistor
VCC=12V
4day
RS=100kΩ CT=100µF
1day
VS=10V
10hrs
CT=10µF
60min
CT=1µF
3
10min
CT=0.1µF
102
1min
CT=0.01µF
1
1sec
10-1
10
102
RT Resistor (kΩ)
8
10
5
1.0
10
100
VS Voltage (V)
CT=0.01µF
10-3
10-4
10
6
100m
10
10-2
CT=0.1µF
(IRT=20µA)
1m
Ambient Temperature TA (°C)
102
CT=1µF
103
10
102
RT Resistor (kΩ)
103
7.0
MB4214
TIMER SECTION (continued)
Fig. 9 - Output Low Voltage vs.
Output Current
Output Low Voltage V OL (V)
10
1.0
VCC=12V
RS=100kΩ
75°C
25°C
100m
-30°C
10m
1m
0.1m
10µ
100µ
1m
10m
100m
Output Current IOL (mA)
Fig. 10 - Input Voltage/Output Voltage
vs. Time
6
Input Overdrive
5mV
4
20mV
2
Input Voltage
VIN (mV)
100mV
0
100
TA=25°C
1.0
Fig. 11 - Output Low Voltage vs.
Output Current
VCC=12V
RS=100kΩ
25°C
75°C
100m
-30°C
10m
1m
0
0
0.5
1.0
1.5
2.0
Time (µs)
Output Voltage
VO (V)
10
Output Low Voltage V OL (V)
Output Voltage
VO (V)
COMPARATOR SECTION
0.1m
10µ
100µ
1.0m
10m
100m
Output Current IOL (mA)
Fig. 12 - Input Voltage/Output Voltage
vs. Time
6
Input Overdrive
4
100mV
5mV
2
Input Voltage
VIN (mV)
20mV
0
100
TA=25°C
0
0
0.5
1.5
1.0
Time (µs)
2.0
9
MB4214
■
APPLICATION EXAMPLES
VCC
12V
Fig. 13 - Timer
RL
RS
100k
2
1
16
3
Reset
Switch
3.5
tOSC =
2
RT CT
VR
5
9
VCT
R2
[s]
R1 + R2
Start timing: Rising edge of reset signal
Stop timing: Rising edge of V01 output
V01
MB4214
7
RL
6
VS
RT
17
4
CT
R1
V02
VR
R2
Reset
VCT
tOSC
V01
2048tOSC
2048tOSC
V02
4096tOSC
VCC
12V
Fig. 14 - Super Low FrequencyOscillator
4096tOSC
RS
2.2k
(5.5V)
VZ
2
MB4214
7
tOSC = K
RT
CT
2
tPOR = 3.5
CRS
[s]
IRS
VS
3
[s]
VR
CRS
RL
1
5
8
9
VS
CT
VCC
V02
10
V02
6
VCT
RT
VCT
17
tOSC
4096tOSC
4096tOSC
MB4214
■
PACKAGE DIMENSIONS
17-LEAD PLASTIC ZIGZAG-IN-LINE PACKAGE
(CASE No. : ZIP-17P-M01)
.112±.010
+0.20
.876 +.008
-.012 (22.25 -0.30 )
(2.85±0.25)
.236±.010
(6.00±0.25)
INDEX
.010±.002
(0.25±0.05)
.050(1.27)
LEAD No.
TYP
.310±.013
(7.87±0.33)
.094(2.40) MIN
.020±.003
.100(2.54) TYP
(0.50±0.08)
(ROW SPACE)
17
1
(BOTTOM VIEW)
1991 FUJITSU LIMITED Z17001Z-3C
Dimensions in
inches (millimeters)
11
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
 FUJITSU LIMITED Printed in Japan
12