MBM29F080A-55PFTR datasheet(10/44 Pages) SPANSION

Part #	MBM29F080A-55PFTR

Description	FLASH MEMORY CMOS 8M (1M x 8) BIT

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MBM29F080A-55/-70/-90

9

MBM29F080A Command Definitions Table

Notes :

• Address bits A11 to A19 = X = “H” or “L” for all address commands except or Program Address (PA) and

Sector Address (SA).

• Bus operations are defined in “MBM29F080A User Bus Operations Table” in “sFLEXIBLE SECTOR-

ERASE ARCHITECTURE”.

• 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.

• 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.

• Read and Byte program functions to non-erasing sectors are allowed in the Erase Suspend mode.

• The system should generate the following address pattens: 555h or 2AAh to addresses A0 to A10.

• The command combinations not described in “MBM29F080A Command Definitions Table” in “sFLEXIBLE

SECTOR-ERASE ARCHITECTURE” are illegal.

*1: Either of the two reset commands will reset the device.

*2: The fourth bus cycle is only for read.

Command

Sequence

Bus

Write

Cycles

Req'd

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

Addr. Data Addr. Data Addr. Data Addr.

Data Addr. Data Addr. Data

Read/Reset*1

1

XXXh F0h

—————

—

Reset/Read*1

3

555h

AAh

2AAh

55h

555h

F0h

RA*2

RD*2

——

—

Manufacture Code

3

555h

AAh

2AAh

55h

555h

90h

00h*2

04h*2

——

—

Device Code

3

555h

AAh

2AAh

55h

555h

90h

01h*2

05h*2

——

—

Byte 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)

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