MBM29F017A datasheet(10/49 Pages) SPANSION

10 / 49 page

MBM29F017A-70/-90/-12

MBM29F017A Command Definitions Table

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

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

Notes :

• Bus operations are defined in “MBM29F017A User Bus Operations”.

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

IA=

Autoselect read address that sets A6, A1, A0.

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 A20, A19, A18, A17, and A16 will uniquely select

any sector.

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

ID= Device code/manufacture code for the address located by IA.

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 command combinations not described in “MBM29F017A Command Definitions” are illegal.

MBM29F017A Sector Protection Verify Autoselect Codes Table

* : Outputs 01h at protected sector addresses and outputs 00h at unprotected sector addresses.

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

XXXh

F0h

——————————

Reset/Read*1

XXXh

AAh

XXXh

55h

XXXh

F0h

RA*2

RD*2

————

Autoselect

XXXh

AAh

XXXh

55h

XXXh

90h

IA*2

ID*2

————

Byte Program

XXXh

AAh

XXXh

55h

XXXh

A0h

—

Chip Erase

XXXh

AAh

XXXh

55h

XXXh

80h

XXXh

AAh

XXXh

55h

XXXh

10h

Sector Erase

XXXh

AAh

XXXh

55h

XXXh

80h

XXXh

AAh

XXXh

55h

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)

Type

A18 to A20

Code

(HEX) DQ

DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0

Manufacture’s

Code

XXX

VIL

04h

00000100

Device Code

VIL

VIH

3Dh

00111101

Sector Group

Protection

Sector Group

Addresses

VIL

VIH

VIL

01h*

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