M28W320EB-ZB datasheet(14/45 Pages) STMICROELECTRONICS

14 / 45 page

M28W320EBT, M28W320EBB

14/45

Table 4. Commands

Note: 1. X = Don’t Care, RA=Read Address, RD=Read Data, SRD=Status Register Data, ID=Identifier (Manufacture and Device Code),

QA=Query Address, QD=Query Data, BA=Block Address, PA=Program Address, PD=Program Data, PRA=Protection Register Ad-

dress, PRD=Protection Register Data.

2. A0=VIL outputs Manufacturer code, A0=VIH outputs Device code. Address A7-A1 must be VIL.

3. Program Addresses 1 and 2 must be consecutive Addresses differing only for A0.

4. Program Addresses 1,2,3 and 4 must be consecutive Addresses differing only for A0 and A1.

5. 55h is reserved.

6. To be characterized.

Table 5. Read Electronic Signature

Note:

RP = VIH.

Commands

No. of

Cycles

Bus Write Operations

1st Cycle

2nd Cycle

3nd Cycle

Bus

Op.

Addr

Data

Bus

Op.

Addr

Data

Bus

Op.

Addr

Data

Read Memory Array

Write

FFh

Read

Read Status

Write

70h

Read

SRD

Read Electronic

Signature

Write

90h

Read

SA(2)

IDh

Read CFI Query

Write

98h

Read

Erase

Write

20h

Write

D0h

Program

Write

40h or

10h

Write

Double Word

Program(3)

Write

30h

Write

PA1

PD1

Write

PA2

PD2

Quadruple Word

Program(4)

Write

56h(6)

Write

PA1

PD1

Write

PA2

PD2

Write

PA3

PD3

Write

Clear Status

Write

50h

Program/Erase

Suspend

Write

B0h

Program/Erase

Resume

Write

D0h

Code

Device

A1-A7

A8-A20

DQ0-DQ7

DQ8-DQ15

Manufacture.

Code

VIL

VIH

VIL

Don’t Care

20h

00h

Device Code

M28W320EBT

VIL

VIH

VIL

Don’t Care

BCh

88h

M28W320EBB

VIL

VIH

VIL

Don’t Care

BDh

88h

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