V29C31004B datasheet(11/15 Pages) MOSEL

Part #	V29C31004B

Description	4 MEGABIT 524,288 x 8 BIT 3.3 VOLT CMOS FLASH MEMORY

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Manufacturer	MOSEL [Mosel Vitelic, Corp]

Direct Link	http://www.moselvitelic.com

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V29C31004T/V29C31004B Rev. 0.3 October 2000

MOSEL VITELIC

V29C31004T/V29C31004B

Boot Block Protection Status

In Autoselect mode, performing a read at

address location 3CXX2H (V29C31004T) or

0CXX2H (V29C31004B) will indicate boot block

protection status. If the data is 01H, the boot block

is protected. If the data is 00H, the boot block is

unprotected. This is also shown is table 3.

Device ID

In Autoselect mode, performing a read at

address XXX1H will determine whether the device

is a Top Boot Block device or a Bottom Boot Block

device. If the data is 63H, the device is a Top Boot

Block. If the data is 73H, the device is a Bottom

Boot Block device (see Table 3).

Manufacturer ID

In Autoselect mode, performing a read at

address XXXX0H will determine the manufacturer

ID. 40H is the manufacturer code for Mosel Vitelic

Flash.

Hardware Data Protection

VCC Detection: the program operation is inhibited

when VCC is less than 2.5V.

Noise Protection: a CE or WE pulse of less than

5ns will not initiate a program cycle.

Program Inhibit: holding any one of OE LOW, CE

HIGH or WE HIGH inhibits a program cycle.

Table 3. Autoselect Decoding

NOTE:

1.

X = Don’t Care, VIH = HIGH, VIL = LOW.

Decoding Mode

Boot Block

Address

Data I/O0–I/O7

A0

A1

A2–A13

A14–A17

Boot Block Protection

Top

VIL

VIH

XVIH

01H: protected

Bottom

VIL

VIH

XVIL

00H: unprotected

Device ID

Top

VIH

VIL

X

63H

Bottom

73H

Manufacture ID

VIL

X

40H

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