參數(shù)資料
型號: MSM62X42B
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: Real Time Clock IC With Built-In Crystal(具有內(nèi)置晶振的實時時鐘電路)
中文描述: 實時時鐘芯片,配有水晶(具有內(nèi)置晶振的實時時鐘電路)
文件頁數(shù): 23/27頁
文件大小: 204K
代理商: MSM62X42B
Semiconductor
MSM62X42B
63
TYPICAL APPLICATION - POWER SUPPLY CIRCUIT
(A capacitor for bypass should be attached near the IC.)
[When supplied from +5V power supply system.]
+5.1V
A495
51K
10K
10K
C372
100
W
V
CE
(sat) = 0.1v
22μ + +
+
0.01μ
4.7μF
Tantalum capacitor
V
DD
GND
MSM62X42B
100
W
V
DD
GND
MSM62X42B
4.7μF
+ 5 V
0.01
μF
C
B
RL
RL
M
+
+
Ceramic
capacitor
1.2V
3 = 3.6V
Ni–Cd batteries
When the power is changed from ON to OFF, the
reverse-current flows temporally from collector to
emitter of a transistor. Therefore, use a capacitor
of large capacitance here.
1.5
2=3V
Dry cells
Tantalum
capacitor
Ceramic
capacitor
[When supplied from higher power supply system than +5V.]
V
DD
GND
4.7μ
+
Tantalum
capacitor
+
MSM62X42B
0.01μ
Ceramic
capacitor
100
W
R2
D1
D2
+5V
(Power supply
of peripheral circuit)
R1
+ V (Higher power
supply over about 1.5V than +5V)
3.6V
(Ni–Cd batteries)
+5.7V
(Note)
In order to reduce the level difference to V
DD
between +5V and MSM62 x 42B, use the
same diodes for D1 and D2.
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