X24F128PE-5 데이터 시트보기 (PDF) - Xicor -> Intersil

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X24F128PE-5

2-Wire SerialFlash with Block Lock™ Protection

Xicor -> Intersil 

X24F128

PROGRAMMING OPERATIONS

Sector Program Operation

The device executes a thirty-two byte sector program

operation. For a sector program operation, the device

requires the Slave Address Byte, Address Byte 1, and

Address Byte 0. Address Byte 0 must contain the first

byte of the sector to be programmed. Upon receipt of

Address Byte 0, the device responds with an acknowl-

edge, and waits for the first eight bits of data. After

receiving the 8 bits of the first data byte, the device

again responds with an acknowledge. The device will

respond with an acknowledge after the receipt of each

of 31 more bytes. Each time the byte address is inter-

nally incremented by one, while the sector address

remains constant. When the counter reaches the end

of the sector, the master terminates the data loading

by issuing a stop condition, which causes the device to

begin the nonvolatile write cycle. All inputs are

disabled until completion of the nonvolatile write cycle.

The SDA pin is at high impedance. Refer to figure 5 for

the address, acknowledge, and data transfer

sequence.

Figure 5. Sector Program Sequence

SIGNALS

FROM THE

MASTER

SDA BUS

S

T

SLAVE

A ADDRESS

R

T

S1010

0

ADDRESS

BYTE 1

ADDRESS

BYTE 0

DATA

(1)

DATA

S

(32)

T

O

P

P

SIGNALS

FROM THE

SLAVE

A

A

A

A

A

C

C

C

C

C

K

K

K

K

K

7012 ILL F08.1

6

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