MSM62X42B 데이터 시트보기 (PDF) - Oki Electric Industry

부품명

상세내역

제조사

MSM62X42B

REAL TIME CLOCK IC WITH BUILT-IN CRYSTAL

Oki Electric Industry 

¡ Semiconductor

TYPICAL APPLICATION - POWER SUPPLY CIRCUIT

MSM62X42B

(A capacitor for bypass should be attached near the IC.)

[When supplied from +5V power supply system.]

+5.1V A495

VCE (sat) = 0.1v

4.7µF

Tantalum capacitor

100W

51K 10K

22µ + + 0.01µ VDD

+

C372

Ceramic

capacitor

MSM62X42B

10K

GND

+5V

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

RL

of large capacitance here.

M

C 100W

RL

B

+

1.5¥2=3V

+ 4.7µF

0.01

µF

VDD

– Dry cells

Ceramic

MSM62X42B

Tantalum

capacitor

capacitor

GND

[When supplied from higher power supply system than +5V.]

R1

+ V (Higher power

supply over about 1.5V than +5V)

D1

+5V

(Power supply

of peripheral circuit) R2

+5.7V

D2

100 W

+

3.6V

(Ni–Cd batteries) –

4.7µ

+

0.01µ VDD

Tantalum Ceramic

capacitor capacitor

GND

MSM62X42B

(Note) In order to reduce the level difference to VDD between +5V and MSM62 x 42B, use the

same diodes for D1 and D2.

63

Share Link: