X25F008PI datasheet(5/16 Pages) XICOR

5 / 16 page

X25F064/032/016/008

Figure 1. Read SerialFlash Memory Array Operation Sequence

Operational Notes

The device powers-up in the following state:

• The device is in the low power standby state.

• A HIGH to LOW transition on

CS is required to

enter an active state and receive an instruction.

• SO pin is high impedance.

• The program enable latch is reset.

Data Protection

The following circuitry has been included to prevent

inadvertent programming:

• The program enable latch is reset upon power-up.

• A program enable instruction must be issued to set

the program enable latch.

•

CS must come HIGH at the proper clock count in

order to start a program cycle.

Figure 2. Read Status Register Operation Sequence

0123456789

20 21 22 23 24 25 26 27 28 29 30

76543210

DATA OUT

SCK

MSB

HIGH IMPEDANCE

INSTRUCTION

16 BIT ADDRESS

15 14 13

3210

6685 ILL F03

0123456789

12 13 14

76543210

DATA OUT

SCK

MSB

HIGH IMPEDANCE

INSTRUCTION

6685 ILL F04

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