WED3DL328V View Datasheet(PDF) - White Electronic Designs Corporation
Part Name
Description
Manufacturer
WED3DL328V Datasheet PDF : 27 Pages
| |||
White Electronic Designs
WED3DL328V
CURRENT STATE TRUTH TABLE
Current State
Idle
Row Active
Read
Write
Read with
Auto Precharge
Command
CE# RAS# CAS# WE# BA0-1
A11,
A10/AP-A0
Description
L
L
L
L
OP Code
Mode Register Set
L
L
L
H
X
X
Auto orSelf Refresh
L
L
H
L
X
X
Precharge
L
L
H
H
BA Row Address
Bank Activate
L
H
L
L
BA
Column
Write w/o Precharge
L
H
L
H
BA
Column
Read w/o Precharge
L
H
H
L
X
X
Burst Termination
L
H
H
H
X
X
No Operation
H
X
X
X
X
X
Device Deselect
L
L
L
L
OP Code
Mode Register Set
L
L
L
H
X
X
Auto orSelf Refresh
L
L
H
L
X
X
Precharge
L
L
H
H
BA Row Address
Bank Activate
L
H
L
L
BA
Column
Write
L
H
L
H
BA
Column
Read
L
H
H
L
X
X
Burst Termination
L
H
H
H
X
X
No Operation
H
X
X
X
X
X
Device Deselect
L
L
L
L
OP Code
Mode Register Set
L
L
L
H
X
X
Auto orSelf Refresh
L
L
H
L
X
X
Precharge
L
L
H
H
BA Row Address
Bank Activate
L
H
L
L
BA
Column
Write
L
H
L
H
BA
Column
Read
L
H
H
L
X
X
Burst Termination
L
H
H
H
X
X
No Operation
H
X
X
X
X
X
Device Deselect
L
L
L
L
OP Code
Mode Register Set
L
L
L
H
X
X
Auto orSelf Refresh
L
L
H
L
X
X
Precharge
L
L
H
H
BA Row Address
Bank Activate
L
H
L
L
BA
Column
Write
L
H
L
H
BA
Column
Read
L
H
H
L
X
X
Burst Termination
L
H
H
H
X
X
No Operation
H
X
X
X
X
X
Device Deselect
L
L
L
L
OP Code
Mode Register Set
L
L
L
L
L
L
L
H
L
H
L
H
L
H
H
X
L
H
X
X
Auto orSelf Refresh
H
L
X
X
Precharge
H
H
BA Row Address
Bank Activate
L
L
BA
Column
Write
L
H
BA
Column
Read
H
L
X
X
Burst Termination
H
H
X
X
No Operation
X
X
X
X
Device Deselect
Action
Notes
Set the Mode Register
2
Start Auto orSelf Refresh
2,3
No Operation
Activate the specified bank and row
ILLEGAL
4
ILLEGAL
2
No Operation
2
No Operation
No Operation or Power Down
5
ILLEGAL
ILLEGAL
Precharge
6
ILLEGAL
2
Start Write; Determine if Auto Precharge
7,8
Start Read; Determine if Auto Precharge
7,8
No Operation
No Operation
No Operation
ILLEGAL
ILLEGAL
Terminate Burst; Start the Precharge
ILLEGAL
4
Terminate Burst; Start the Write cycle
8,9
Terminate Burst; Start a new Read cycle
8,9
Terminate the Burst
Continue the Burst
Continue the Burst
ILLEGAL
ILLEGAL
Terminate Burst; Start the Precharge
ILLEGAL
4
Terminate Burst; Start a new Write cycle
8,9
Terminate Burst; Start the Read cycle
8,9
Terminate the Burst
Continue the Burst
Continue the Burst
ILLEGAL
ILLEGAL
ILLEGAL
4
ILLEGAL
4
ILLEGAL
ILLEGAL
ILLEGAL
Continue the Burst
Continue the Burst
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June, 2002
Rev. 1
9
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Share Link: 