M29W320ET datasheet(13/46 Pages) STMICROELECTRONICS

13 / 46 page

13/46

M29W320ET, M29W320EB

Table 2. Bus Operations, BYTE = VIL

Note: X = VIL or VIH.

Table 3. Bus Operations, BYTE = VIH

Note: X = VIL or VIH.

Operation

Address Inputs

DQ15A–1, A0-A20

Data Inputs/Outputs

DQ14-DQ8

DQ7-DQ0

Bus Read

VIL

VIH

Cell Address

Hi-Z

Data Output

Bus Write

VIL

VIH

VIL

Command Address

Hi-Z

Data Input

Output Disable

VIH

Hi-Z

Standby

VIH

Hi-Z

Read Manufacturer

Code

VIL

VIH

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

Others VIL or VIH

Hi-Z

20h

Read Device Code

VIL

VIH

A0 = VIH, A1 = VIL,

A9 = VID, Others VIL or VIH

Hi-Z

56h (M29W320ET)

57h (M29W320EB)

Extended Memory

Block Verify Code

VIL

VIH

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

A9 = VID, Others VIL or VIH

Hi-Z

81h (factory locked)

01h (not factory locked)

Operation

Address Inputs

A0-A20

Data Inputs/Outputs

DQ15A–1, DQ14-DQ0

Bus Read

VIL

VIH

Cell Address

Data Output

Bus Write

VIL

VIH

VIL

Command Address

Data Input

Output Disable

VIH

XHi-Z

Standby

VIH

Hi-Z

Read Manufacturer

Code

VIL

VIH

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

Others VIL or VIH

0020h

Read Device Code

VIL

VIH

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

Others VIL or VIH

2256h (M29W320ET)

2257h (M29W320EB)

Extended Memory

Block Verify Code

VIL

VIH

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

A9 = VID, Others VIL or VIH

81h (factory locked)

01h (not factory locked)

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