AM29PDL128G datasheet(45/71 Pages) AMD

45 / 71 page

Am29PDL128G

October 28, 2004

P R E L IM IN A R Y

Legend:

BA = Address of bank switching to autoselect mode, bypass mode, or

erase. Determined by A21:A19, see Table 4 and Table 5 for more

details.

PA = Program Address (A21:A-1). Addresses latch on falling edge of

WE# or CE# pulse, whichever happens later.

PD = Program Data (DQ15:DQ0) written to location PA. Data latches

on rising edge of WE# or CE# pulse, whichever happens first.

RA = Read Address (A21:A-1).

RD = Read Data (DQ15:DQ0) from location RA.

SA = Sector Address (A21:A12) for verifying (in autoselect mode) or

erasing.

WD = Write Data. See “Configuration Register” definition for specific

write data. Data latched on rising edge of WE#.

X = Don’t care

Notes:

See Table 1 for description of bus operations.

All values are in hexadecimal.

Shaded cells in the table denote read cycles. All other cycles are

write operations.

During unlock and command cycles, when lower address bits are

555 or AAAh as shown in the table, address bits higher than A11

(except where BA is required) and data bits higher than DQ7 are

don’t cares.

No unlock or command cycles required when bank is reading

array data.

Reset command is required to return to reading array (or to

erase-suspend-read mode if previously in Erase Suspend) when

a bank is in autoselect mode, or if DQ5 goes high (while bank is

providing status information).

Cycle 4 of auto command sequence is a read cycle. See

“Autoselect Command Sequence” on page 35 for more

information.

The data is 80h for factory locked and 00h for not factory locked.

The data is 00h for an unprotected sector group and 01h for a

protected sector group.

10. Device ID must be read across cycles 4, 5, and 6.

11. System may read and program in non-erasing sectors, or enter

autoselect mode, when in Program/Erase Suspend mode.

Program/Erase Suspend command valid only during a sector

erase operation, and requires bank address.

12. Program/Erase Resume command valid only during Erase

Suspend mode, and requires bank address.

13. Command is valid when device is ready to read array data or

when device is in autoselect mode.

14. ACC must be at V

ID during entire operation of this command.

15. Unlock Bypass Entry command required prior to any Unlock

Bypass operation. Unlock Bypass Reset command is required to

return to reading array.

Table 16.

Memory Array Command Definitions (x16 Mode)

Command (Notes)

Bus Cycles (Notes 1, 2, 3, and 4)

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Read (5)1

Reset (6)

XXX

Autoselect

(Note 7)

Manufacturer ID

555

2AA

555

(BA)X00

Device ID (10)

555

2AA

555

(BA)X01

(BA)X0E

(BA)X0F

SecSi Sector Factory

Protect (8)

555

2AA

555

X03

(Note 8)

Sector Group Protect

Verify (9)

555

2AA

555

SA02

XX00/ XX01

Program

555

2AA

555

Chip Erase

AAA

555

AAA

555

AAA

Sector Erase

AAA

555

AAA

555

Program/Erase Suspend (11)

Program/Erase Resume (12)1

CFI Query (13)

Accelerated Program (14)

Unlock Bypass Entry (15)

AAA

555

AAA

Unlock Bypass Program (15)

Unlock Bypass Erase (15)

Unlock Bypass CFI 13, 15)1

Unlock Bypass Reset (15)

XXX

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