M27W032

10/23

Table 3. Standard Commands

Note: X Don’t Care, PA Program Address, PD Program Data. All values in the table are in hexadecimal. The Command Interface only uses

A0-A10 and DQ0-DQ7 to verify the commands; A11-A20, DQ8-DQ15 are Don’t Care.

Table 4. Multiple Word Program Command

Note: A Bus Read must be done between each Write cycle where the data is programmed or verified, to Read the Status Register and check

that the memory is ready to accept the next data. SA is the Start Address. CA is the Continue Address. FA is the Final Address. X Don’t

Care, n = number of Words to be programmed.

Table 5. Program Times

Command

Bus Write Operations

1st

2nd

3rd

4th

Add

Data

Add

Data

Add

Data

Add

Data

Read/Reset

1X

F0

3

555

AA

2AA

55

X

F0

Auto Select

3

555

AA

2AA

55

555

90

Word Program

4

555

AA

2AA

55

555

A0

PA

PD

Phase

Bus Write Operations

1st

2nd

3rd

4th

5th

nth

Final

Add

Data

Add

Data

Add

Data

Add

Data

Add

Data

Add

Data

Add

Data

Set-Up

3

555

AA

2AA

55

555

20

Program

n+1

SA

PD1

CA

PD2

CA

PD3

CA

PD4

CA

PD5

CA

PAn

FA

X

Verify

n+1

SA

PD1

CA

PD2

CA

PD3

CA

PD4

CA

PD5

CA

PAn

FA

X

Parameter

Max

Unit

Program (Word)

9

200

µs

Chip Program (Multiple Word)

4

70

s

Chip Program (Word by Word)

18

70

s