MX29F4000PC-70 Ver la hoja de datos (PDF) - Macronix International

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MX29F4000PC-70

4M-BIT [512KX8] CMOS EQUAL SECTOR FLASH MEMORY

Macronix International 

MX29F4000

TABLE1. SOFTWARE COMMAND DEFINITIONS

Command

Reset

Read

Read Silicon ID

Sector Protect Verify

Porgram

Chip Erase

Sector Erase

Sector Erase Suspend

Sector Erase Resume

Unlock for sector

protect/unprotect

Bus

Cycle

1

1

4

4

4

6

6

1

1

6

First Bus

Second Bus Third Bus Fourth Bus Fifth Bus

Cycle

Cycle

Cycle

Cycle

Cycle

Addr Data Addr Data Addr Data Addr Data Addr Data

XXXH F0H

RA RD

555H AAH 2AAH 55H 555H 90H ADI DDI

555H AAH 2AAH 55H 555H 90H (SA)X 00H

02 01H

555H AAH 2AAH 55H 555H A0H PA PD

555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H

555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H

XXXH B0H

XXXH 30H

555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H

Sixth Bus

Cycle

Addr Data

555H 10H

SA 30H

555H 20H

Note:

1. ADI = Address of Device identifier; A1=0, A0 = 0 for manufacture code,A1=0, A0 = 1 for device code A2-A18=Do

not care.

(Refer to table 3)

DDI = Data of Device identifier : C2H for manufacture code, 99H for device code.

X = X can be VIL or VIH

RA=Address of memory location to be read.

RD=Data to be read at location RA.

2.PA = Address of memory location to be programmed.

PD = Data to be programmed at location PA.

SA = Address to the sector to be erased.

3.The system should generate the following address patterns: 555H or 2AAH to Address A10~A0 .

Address bit A11~A18=X=Don't care for all address commands except for Program Address (PA) and Sector

Address (SA). Write Sequence may be initiated with A11~A18 in either state.

4.For Sector Protect Verify Operation : If read out data is 01H, it means the sector has been protected.If read out data

is 00H,it means the sector is still not being protected.

COMMAND DEFINITIONS

Device operations are selected by writing specific address

and data sequences into the command register. Writing

incorrect address and data values or writing them in the

improper sequence will reset the device to the read

mode. Table 1 defines the valid register command

sequences. Note that the Erase Suspend (B0H) and

Erase Resume (30H) commands are valid only while the

Sector Erase operation is in progress. Either of the two

reset command sequences will reset the device(when

applicable).

P/N:PM0629

REV. 1.0, DEC. 20, 1999

5

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