FLASH

AS8FLC2M32

AS8FLC2M32B

Rev. 1.6 05/11

Micross Components reserves the right to change products or specifications without notice.

13

Command Definition Table

*Data is for single byte.

BYTE 1 = DQ0 - DQ7

BYTE 2 = DQ8 - DQ15

BYTE 3 = DQ16 - DQ23

BYTE 4 = DQ24 - DQ31

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

1

Device ID, Btm. Boot

4

AAA

AA

555

55

AAA

90

X01

37

Sector Protect Verify

4

AAA

AA

555

55

AAA

90

(SA)

0

(Note 8)

X04

1

4

AAA

AA

555

55

AAA

A0

PA

PD

3

AAA

AA

555

55

AAA

20

2

XXX

A0

PA

PD

2

XXX

90

XXX

0

6

AAA

AA

555

55

AAA

80

AAA

AA

555

55

AAA

10

6

AAA

AA

555

55

AAA

80

AAA

AA

555

55

SA

30

1

XXX

B0

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 the Wex\ or Cex\ pulse, whichever occurs later.

PD = Data to be programmed at location PA. Data latches on the rising edge of WE# or CE# pulse, whichever occurs later.

SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A20-A13 uniquely select any sector.

Notes:

1.See Table 1 for Valid Bus Operations.

2.All values in hexadecimal.

3.Except when reading array or autoselect data, all bus cycles are write operations

4.Data bits A20-A11 are don’t cares for unlock and command cycles

5.No unlock or command cycles required when reading array data.

6.The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ% goes high (while the device is providing status data).

7.The fourth cycle of the autoselect command sequence is a read cycle

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

9.The Unlock Bypass command is required prior to the Unlock Bypass Program command.

10.The Unlock Bypass Reset command is required to return to reading array data when the device is in the unlock bypass mode.

11. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode.

The Erase Suspend command is valid only during a sector erase operation.

12. The Erase Resume command is valid only during the Erase Suspend mode.

Bus Cycles (Notes 2-4)

(Note 9)

Command Sequence

(Note 1)

First

Second

Third

Fourth

Fifth

Sixth

Erase Suspend (Note 11)

Erase Resume (Note 12)

Auto-Select

(Note 7)

Unlock Bypass Reset

(Note 10)

Chip Erase

Sector Erase

Program

Unlock Bypass

Unlock Bypass Program