M29W640DT(2004) データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

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M29W640DT
(Rev.:2004)

64 Mbit (8Mb x8 or 4Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

M29W640DT, M29W640DB

Read Device Code

VIL

VIL

VIH

A0 = VIH, A1 = VIL,

A9 = VID, Others VIL or VIH

Extended Memory

Block Verify Code

VIL

VIL

VIH

A0 = VIH, A1 = VIH, A6 = VIL,

A9 = VID, Others VIL or VIH

Note: X = VIL or VIH.

Table 3. Bus Operations, BYTE = VIH

Operation

E

G

W

Bus Read

VIL

VIL

VIH

Bus Write

VIL

VIH

VIL

Output Disable

X

VIH

VIH

Standby

VIH

X

X

Read Manufacturer

Code

VIL

VIL

VIH

Read Device Code

VIL

VIL

VIH

Address Inputs

A0-A21

Cell Address

Command Address

X

X

A0 = VIL, A1 = VIL, A9 = VID,

Others VIL or VIH

A0 = VIH, A1 = VIL, A9 = VID,

Others VIL or VIH

Extended Memory

Block Verify Code

VIL

VIL

VIH

A0 = VIH, A1 = VIH, A6 = VIL,

A9 = VID, Others VIL or VIH

Note: X = VIL or VIH.

Hi-Z

DEh (M29W640DT)

DFh (M29W640DB)

M29W640DT

98h (factory locked)

18h (not factory locked)

Hi-Z

M29W640DB

88h (factory locked)

08h (not factory locked)

Data Inputs/Outputs

DQ15A–1, DQ14-DQ0

Data Output

Data Input

Hi-Z

Hi-Z

0020h

22DEh (M29W640DT)

22DFh (M29W640DB)

M29W640DT

98h (factory locked)

18h (not factory locked)

M29W640DB

88h (factory locked)

08h (not factory locked)

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