MBM29LV080A-12PTN 데이터 시트보기 (PDF) - Fujitsu

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MBM29LV080A-12PTN

8M (1M x 8) BIT

Fujitsu 

MBM29LV080A-70/-90/-12

Table 5 MBM29LV080A Standard Command Definitions

Command

Sequence

(Notes 1, 2, 3)

Read/Reset

(Note 5)

Read/Reset

(Note 5)

Bus

Write

Cycles

First Bus

Write Cycle

Second

Bus

Write Cycle

Third Bus

Write Cycle

Fourth Bus

Read/Write

Cycle

Fifth Bus

Write Cycle

Sixth Bus

Write Cycle

Req'd Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data

1 XXXH F0H — — — — — — — — — —

3 XXXH AAH XXXH 55H XXXH F0H RA RD — — — —

Autoselect

3 XXXH AAH XXXH 55H XXXH 90H — — — — — —

Byte Program

(Notes 3, 4)

4 XXXH AAH XXXH 55H XXXH A0H PA PD — — — —

Chip Erase

6 XXXH AAH XXXH 55H XXXH 80H XXXH AAH XXXH 55H XXXH 10H

Sector Erase

(Note 3)

6 XXXH AAH XXXH 55H XXXH 80H XXXH AAH XXXH 55H SA 30H

Sector Erase

Suspend

1 XXXH B0H

Sector Erase

Resume

1 XXXH 30H

Notes: 1. Address bit = X = “H” or “L”.

2. Bus operations are defined in Table 2.

3. RA=Address of the memory location to be read.

PA=Address of the memory location to be programmed. Addresses are latched on the falling edge of

the WE pulse.

SA=Address of the sector to be erased. The combination of A19, A18, A17, and A16 will

uniquely select any sector.

4. RD=Data read from location RA during read operation.

PD=Data to be programmed at location PA. Data is latched on the rising edge of WE.

5. Both Read/Reset commands are functionally equivalent, resetting the device to the read mode.

Command Definitions

Device operations are selected by writing specific address and data sequences into the command register.

Writing incorrect address and data values or writing them in the improper sequence will reset the devices to

read mode. Table 6 defines the valid register command sequences. Note that the Erase Suspend (B0H) and

Erase Resume (30H) commands are valid only while the sector Erase operation is in progress. Moreover, both

Read/Reset commands are functionally equivalent, resetting the device to the read mode. Please note that

commands are always written at DQ0 to DQ7 bits are ignored.

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