M36D232A, M36DR232B

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Note: 1. All blocks are protected at power-up, so the default configuration is 001 or 101 according to WPF status.

2. Current state and Next state gives the protection status of a block. The protection status is defined by the write protect pin and by

3. Next state is the protection status of a block after a Protect or Unprotect or Lock command has been issued or after WPF has

changed its logic value.

(WP, DQ1, DQ0)

Program/Erase

Allowed

Protect

Unprotect

Lock

WP transition

100

yes

101

100

111

000

101

no

101

100

111

001

110

yes

111

110

111

011

111

no

111

110

111

011

000

yes

001

000

011

100

001

no

001

000

011

101

011

no

011

011

011

Mne.

Instr.

Cyc.

1st Cyc.

2nd Cyc.

3rd Cyc.

4th Cyc.

5th Cyc.

6th Cyc.

Read/Reset

Memory Array

1+

X

Read Memory Array until a new write cycle is initiated.

Data

F0h

3+

Addr.

555h

2AAh

555h

Read Memory Array until a new

write cycle is initiated.

Data

AAh

55h

F0h

RCFI

CFI Query

1+

Addr.

55h

Read CFI data until a new write cycle is initiated.

Data

98h

Auto Select

3+

Addr.

555h

2AAh

555h

Read electronic Signature or

Block Protection or Configuration

Register Status until a new cycle

is initiated.

Data

AAh

55h

90h

CR

Configuration

Register Write

4

Addr.

555h

2AAh

555h

Configura-

tion Data

Data

AAh

55h

60h

03h

PG

Program

4

Addr.

555h

2AAh

555h

Program

Address

Read Data Polling or

Toggle Bit until

Program completes.

Data

AAh

55h

A0h

Program

Data

DPG

Double Word

Program

5

Addr.

555h

2AAh

555h

Program

Address 1

Program

Address 2

Note 6, 7

Data

AAh

55h

40h

Program

Data 1

Program

Data 2

EBY

Enter Bypass

Mode

3

Addr.

555h

2AAh

555h

Data

AAh

55h

20h