K7N803645M

- 8 -

Rev 3.0

November 1999

K7N801845M

SYNCHRONOUS TRUTH TABLE

Notes : 1. X means "Don

′t Care".

2. The rising edge of clock is symbolized by (

↑).

3. A continue deselect cycle can only be enterd if a deselect cycle is executed first.

4. WRITE = L means Write operation in WRITE TRUTH TABLE.

WRITE = H means Read operation in WRITE TRUTH TABLE.

5. Operation finally depends on status of asynchronous input pins(ZZ and OE).

ADV

WE

BWx

OE

CKE

CLK

ADDRESS ACCESSED

OPERATION

H

X

X

L

X

X

X

L

↑

N/A

Not Selected

X

L

X

L

X

X

X

L

↑

N/A

Not Selected

X

X

H

L

X

X

X

L

↑

N/A

Not Selected

X

X

X

H

X

X

X

L

↑

N/A

Not Selected Continue

L

H

L

L

H

X

L

L

↑

External Address

Begin Burst Read Cycle

X

X

X

H

X

X

L

L

↑

Next Address

Continue Burst Read Cycle

L

H

L

L

H

X

H

L

↑

External Address

NOP/Dummy Read

X

X

X

H

X

X

H

L

↑

Next Address

Dummy Read

L

H

L

L

L

L

X

L

↑

External Address

Begin Burst Write Cycle

X

X

X

H

X

L

X

L

↑

Next Address

Continue Burst Write Cycle

L

H

L

L

L

H

X

L

↑

N/A

NOP/Write Abort

X

X

X

H

X

H

X

L

↑

Next Address

Write Abort

X

X

X

X

X

X

X

H

↑

Current Address

Ignore Clock

Notes : 1. X means "Don

′t Care".

2. All inputs in this table must meet setup and hold time around the rising edge of CLK(

↑).

WE

BWa

BWb

BWc

BWd

OPERATION

H

X

X

X

X

READ

L

L

H

H

H

WRITE BYTE a

L

H

L

H

H

WRITE BYTE b

L

H

H

L

H

WRITE BYTE c

L

H

H

H

L

WRITE BYTE d

L

L

L

L

L

WRITE ALL BYTEs

L

H

H

H

H

WRITE ABORT/NOP

TRUTH TABLES

Notes : 1. X means "Don

′t Care".

2. All inputs in this table must meet setup and hold time around the rising edge of CLK(

↑).

WE

BWa

BWb

OPERATION

H

X

X

READ

L

L

H

WRITE BYTE a

L

H

L

WRITE BYTE b

L

L

L

WRITE ALL BYTEs

L

H

H

WRITE ABORT/NOP