MB84VA2107 View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB84VA2107

16M (×16) FLASH MEMORY & 1M (× 8) STATIC RAM

Fujitsu 

MB84VA2106-10/MB84VA2107-10

Table 6 Flash Memory Command Definitions

Command

Sequence

Bus

Write

Cycles

Req’d

First Bus

Write Cycle

Addr. Data

Second Bus

Write Cycle

Addr. Data

Third Bus

Write Cycle

Addr. Data

Fourth Bus

Read/Write

Cycle

Addr. Data

Fifth Bus

Write Cycle

Addr. Data

Sixth Bus

Write Cycle

Addr. Data

Read/Reset

1 XXXH F0H — — — — — — — — — —

Read/Reset

3 555H AAH 2AAH 55H 555H F0H RA RD — — — —

Autoselect

3 555H AAH 2AAH 55H 555H 90H — — — — — —

Program

4 555H AAH 2AAH 55H 555H A0H PA PD — — — —

Chip Erase

6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H

Sector Erase

6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SA 30H

Sector Erase Suspend

Erase can be suspended during sector erase with Addr. (“H” or “L”). Data (B0H)

Sector Erase Resume

Erase can be resumed after suspend with Addr. (“H” or “L”). Data (30H)

Set to

Fast Mode

3 555H AAH 2AAH 55H 555H 20H — — — — — —

Fast Program

(Note)

2 XXXH A0H PA PD — — — — — — — —

Reset from Fast

Mode (Note)

2 XXXH 90H XXXH F0H —

—

——

—

———

Extended Sector

Protect

4 XXXH 60H SPA 60H SPA 40H SPA SD —

—

—

—

Address bits A11 to A20 = X = “H” or “L” for all address commands except for Program Address (PA) and Sector

Address (SA).

Bus operations are defined in Table 2.

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

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 write pulse.

SA =Address of the sector to be erased. The combination of A20, A19, A18, A17, A16, A15, A14, and A13 will

uniquely select any sector.

RD =Data read from location RA during read operation.

PD =Data to be programmed at location PA.

SPA =Sector address to be protected. Set sector address (SA) and (A6, A1, A0) = (0, 1, 0).

SD =Sector protection verify data. Output 01H at protected sector addresses and output 00H at unprotected

sector addresses.

Note:This command is valid while Fast Mode.

9

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