AT93C46C-10PI-2.5(2002) データシートの表示（PDF） - Atmel Corporation

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AT93C46C-10PI-2.5
(Rev.:2002)

3-Wire Serial EEPROM

Atmel Corporation 

ERASE ALL (ERAL): The Erase All (ERAL) instruction programs every bit in the

memory array to the logic “1” state and is primarily used for testing purposes. The DO

pin outputs the READY/BUSY status of the part if CS is brought high after being kept

low for a minimum of 250 ns (tCS). The ERAL instruction is valid only at VCC = 5.0V ±

10%.

WRITE ALL (WRAL): The Write All (WRAL) instruction programs all memory loca-

tions with the data patterns specified in the instruction. The DO pin outputs the

READY/BUSY status of the part if CS is brought high after being kept low for a minimum

of 250 ns (tCS). The WRAL instruction is valid only at VCC = 5.0V ± 10%.

ERASE/WRITE DISABLE (EWDS): To protect against accidental data disturb, the

Erase/Write Disable (EWDS) instruction disables all programming modes and should be

executed after all programming operations. The operation of the READ instruction is

independent of both the EWEN and EWDS instructions and can be executed at any

time.

6 AT93C46C

1122D–SEEPR–08/02

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