MBM29PL64LM datasheet(13/69 Pages) SPANSION

13 / 69 page

MBM29PL64LM90/10

Sector Group Protection Verify Autoselect Codes

*1 : A-1 is for Byte mode.

*2 : At Word mode, a read cycle at address 01h ( at Byte mode, 02h ) outputs device code. When 227Eh

( at Byte mode, 7Eh ) is output, it indicates that reading two additional codes, called Extended Device

Codes, will be required. Therefore the system may continue reading out these Extended Device

Codes at the address of 0Eh ( at Byte mode, 1Ch ), as well as at 0Fh ( at Byte mode, 1Eh ).

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

*4 : Given CE = Fix, wait for one cycle after the rising edge of WE (the last write command) , then indicate SGA as

(A6, A3, A2, A1, A0, A − 1) = (0, 0, 0, 1, 0, 0) .

Type

A21 to A15

A-1*1

Code (HEX)

Manufacturer’s Code

VIL

04h

Device Code

Word

XVIL

VIL

VIH

227Eh

Byte

VIL

7Eh

Extended Device Code*2

Word

XVIL

VIH

VIL

220Ch

Byte

VIL

0Ch

Word

XVIL

VIH

2201h

Byte

VIL

01h

Sector Group Protection*4

Sector Group

Addresses

VIL

VIH

VIL

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