MX29F004B Просмотр технического описания (PDF) - Macronix International

Номер в каталоге

Компоненты Описание

Список матч

MX29F004B

4M-BIT [512KX8] CMOS FLASH MEMORY

Macronix International 

MX29F004T/B

TABLE 2. MX29F004T/B BUS OPERATION

Mode

Pins

CE

OE

WE A0

A1

A6

Read Silicon ID

L

L

H

L

L

X

Manufacturer Code (1)

Read Silicon ID

L

L

H

H

L

X

Device Code (1)

Read

L

L

H

A0

A1

A6

Standby

H

X

X

X

X

X

Output Disable

L

H

H

X

X

X

Write

L

H

L

A0

A1

A6

Chip Protect with 12V

system (6)

L

VID(2) L

X

X

L

Chip Unprotect with 12V

L

VID(2) L

X

X

H

system (6)

Verify Chip Protect

L

L

H

X

H

X

with 12V system

Chip Protect without 12V

L

H

L

X

X

L

system (6)

Chip Unprotect without 12V L

H

L

X

X

H

system (6)

Verify Chip Protect/Unprotect L

L

H

X

H

X

without 12V system (7)

Reset

X

X

X

X

X

X

A9

VID(2)

VID(2)

A9

X

X

A9

VID(2)

VID(2)

VID(2)

H

Q0 ~ Q7

C2H

45H/46H

DOUT

HIGH Z

HIGH Z

DIN(3)

X

X

Code (5)

X

H

X

H

Code (5)

X

HIGH Z

NOTES:

1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table

1.

2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V.

3. Refer to Table 1 for valid Data-In during a write operation.

4. X can be VIL or VIH.

5. Code=00H means unprotected.

Code=01H means protected.

6. Refer to chip protect/unprotect algorithm and waveform.

Must issue "unlock for chip protect/unprotect" command before "chip protect/unprotect without 12V system"

command.

7. The "verify chip protect/unprotect without 12V system" is only following "Chip protect/unprotect without 12V

system" command.

P/N:PM0554

REV. 1.9, OCT. 19, 2004

7

Share Link: