LA74310LP

No.A0904-6/22

POWER ON Condition (SERIAL communication)

The POWER ON RESET state covers a period up to the rise

of the second C.S. input after fall

of POWER ON

PULSE

generated inside IC when the power is applied and the STANDBY control is canceled.

is the dummy

communication.

Actually, because of delay of several hundreds ns in the IC, the first DATA condition begins in

and the normal

SERIAL communication condition begins after

.

HIGH period for about 2ms

Delay of several

hundreds ns

→

←SERIAL communication condition

Dummy communication

Power Supply

H

L

STANDBY control

(Pin No 23)

↑

HIGH to cancel STANDBY

POWER ON PULSE

(IC inside)

C.S.

POWER ON RESET

(IC inside)

↑

First DATA hold

← First DATA →

communication

H

L

H

L

H

L

H

L

←

→

POWER ON RESET state