MBM29F080A datasheet(8/44 Pages) SPANSION

8 / 44 page

MBM29F080A-55/-70/-90

s FLEXIBLE SECTOR-ERASE ARCHITECTURE

MBM29F080A User Bus Operations Table

Legend: L = VIL, H = VIH, X = VIL or VIH,

= Pulse Input. See DC Characteristics for voltage levels.

*1 : Manufacturer and device codes may also be accessed via a command register write sequence. Refer to

“MBM29F080A Command Definitions Table” in “sFLEXIBLE SECTOR-ERASE ARCHITECTURE”.

*2 : Refer to the section on Sector Group Protection.

*3 : WE can be VIL if OE is VIL, OE at VIH initiates the write operations.

MBM29F080A Sector Protection Verify Autoselect Codes Table

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

Operation

DQ0 to DQ7

RESET

Auto-Select Manufacturer Code *1

VID

Code

Auto-Select Device Code *1

VID

Code

Read *3

DOUT

Standby

XXXXXX

High-Z

Output Disable

XXXX

High-Z

Write (Program/Erase)

DIN

Enable Sector Group Protection *2

LVID

XXX

VID

Verify Sector Group Protection *2

HLHL

VID

Code

Temporary Sector Group Unprotection

VID

Reset (Hardware)

High-Z

Type

A17 to A19

Code

(HEX) DQ

DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0

Manufacture’s

Code

XXX

VIL

04h

00000100

Device Code

VIL

VIH

D5h

10101101

Sector Group

Protection

Sector Group

Addresses

VIL

VIH

VIL

01h*

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