AUSTIN SEMICONDUCTOR, INC.

FLASH

FLASH

FLASH

FLASH

FLASH

AS8FLC1M32

AS8FLC1M32B

Rev. 3.3 05/08

Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.

11

Austin Semiconductor, Inc.

Command Definition Table

Bus Cycles (Notes 2-4)

Command Sequence

First

Second

Third

Fourth

Fifth

Sixth

(Note 1)

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

READ (Note 5)

1RA

RD

RESET (Note 6)

1

XXX

F0

Manufacturer ID

4

AAA

AA

555

55

AAA

90

X00

01

Auto-

Device ID, Btm. Boot

4

AAA

AA

555

55

AAA

90

X02

5B

Select

Sector Protect Verify

(SA)

00

(Note 7)

(Note 8)

X04

01

PROGRAM

4

AAA

AA

555

55

AAA

A0PA

PD

UNLOCK BYPASS

3

AAA

AA

555

55

AAA

20

UNLOCK B(Note 9)

2

XXX

A0

PA

PD

UNLOCK B(Note 10)

2

XXX

90

PA

00

CHIP ERASE

6

AAA

AA

555

55

AAA

80

AAA

AA

555

55

AAA

10

SECTOR ERASE

6

AAA

AA

555

55

AAA

80

AAA

AA

555

55

SA

30

ERASE SUSPEND (Note 11)

1

XXX

B0

ERASE RESUME (Note 12)

1

XXX

30

Legend:

X = Don't Care

RA = Address of the memory location to be READ

RD = Data READ from location RA during READ Operation

PA = Address of the memory location to be programmed. Addresses latched on the falling edge of WEx\ or CSx\ pulse,

whichever occurs later

PD = Data to be programmed at location PA. Data latches on the rising edge of WEx\ or CSx\ pulses,

whichever occurs later

SA = Address of the sector to be VERIFIED (in autoselect mode) or ERASED. Address bits A19-A13 uniquely

select any sector

Notes

8 . The data is 00h for an unprotected sector and 01h for

1. See Table 1 for Valid Bus Operations

a protected sector.

2 . All values in Hexadecimal

9 . The UNLOCK BYPASS Command is required prior to the

3 . Except when READING array or autoselect data, all bus

UNLOCK BYPASS PROGRAM Command.

cycles are WRITE Operations

10 . The UNLOCK BYPASS RESET Command is required to

4 . Address bits A19-A12 are don't cares for UNLOCK and

return to READING array data when the device is in the

Command cycles

UNLOCK BYPASS Mode

5 . No UNLOCK or Command cycles required when

11 . The System may READ and PROGRAM in NON-ERASING

READING array data

sectors, or enter the autoselect mode, when int the ERASE

6 . The RESET command is required to return to READING

SUSPEND Mode. The ERASE SUSPEND Command is

array data when the device is in the AUTOSELECT

valid only during a sector ERASE Operation

mode, or if DQ5, DQ13, DQ21, DQ29 goes high

12 . The ERASE RESUME Command is valid only during the

(while the device is providing status data)

ERASE SUSPEND Mode.

7 . The fourth cycle of the AUTOSELECT Command

sequence is a READ Cycle.

55

AAA

90

4

AAA

AA

555

*Data is for single byte.

BYTE 1 = DQ0 - DQ7

BYTE 2 = DQ8 - DQ15

BYTE 3 = DQ16 - DQ23

BYTE 4 = DQ24 - DQ31