參數(shù)資料
型號(hào)： MB4214
廠商： Fujitsu Limited
英文描述： TIMER
中文描述： 定時(shí)器
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 308K
代理商： MB4214
1
DS04-29106-2E
FUJITSU SEMICONDUCTOR
DATA SHEET
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 R
T
, capacitor C
T
and V
S
input voltage.
Time adjustable: 500ms to 100hours
Oscillator period is controlled by V
S
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) (T
A
=25
°
C)
Rating
Symbol
Value
Unit
Power Supply Voltage
V
CC
18
V
Zener Current
I
Z
20
mA
Input Voltage
V
IN
-0.3 to 18 (V
IN
≤
V
CC
)
V
Output Voltage
V
O
18
V
Power Dissipation
P
D
620 (T
A
≤
85
°
C)
mW
Operating Temperature
T
A
-30 to +85
°
C
°
C
Storage Temperature
T
STG
-55 to +125
NOTE:
Permanent device damage may occur if the above Absolute Maximum Rat-
ings are exceeded. Functional operation should be restricted to the condi-
tions 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 dam-
age 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
PIN ASSIGNMENT
(FRONT VIEW)
V
02
V
01
+IN-B
+IN-A
-IN-B
-IN-A
OUT-B
OUT-A
GND
OSC/FR
RST
V
S
C
T
V
R
R
T
V
Z
V
CC
PLASTIC PACKAGE
ZIP-17P-M01
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
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