M13S5121632A-2S Datasheet, PDF (29/48 Pages) Elite Semiconductor Memory Technology Inc. – Double-data-rate architecture, two data transfers per clock cycle

ESMT
M13S5121632A (2S)
Truth Table – Current State Bank n
Current State
CS RAS CAS WE
COMMAND / ACTION
NOTE
Command to Bank n ^{[Note 1~6,13]}
Any
H
X
X
X DESELECT (NOP / continue previous operation)
L
H
H
H No Operation (NOP / continue previous operation)
L
L
H
H ACTIVE (select and activate row)
Idle
L
L
L
H AUTO REFRESH
7
L
L
L
L MODE REGISTER SET
7
L
H
L
H READ (select column & start read burst)
10
Row Active
L
H
L
L WRITE (select column & start write burst)
10
L
L
H
L PRECHARGE (deactivate row in bank or banks)
8
L
H
L
H READ (select column & start new read burst)
10
Read
(Auto Precharge
L
H
L
L WRITE (select column & start write burst)
10, 12
Disabled)
L
L
H
L PRECHARGE (truncate read burst, start precharge)
8
L
H
H
L BURST TERMINATE
9
Write
L
H
L
H READ (select column & start read burst)
10, 11
(Auto Precharge
L
H
L
L WRITE (select column & start new write burst)
10
Disabled)
L
L
H
L PRECHARGE (truncate write burst, start precharge)
8, 11
Command to Bank m ^{[Note 1~3, 6,13~15]}
Any
H
X
X
X DESELECT (NOP / continue previous operation)
L
H
H
H No Operation (NOP / continue previous operation)
Idle
X
X
X
X Any command allowed to bank m
L
L
H
H ACTIVE (select and activate row)
Row Activating,
Active, or
L
H
L
H READ (select column & start read burst)
10
Precharging
L
H
L
L WRITE (select column & start write burst)
10
L
L
H
L PRECHARGE
L
L
H
H ACTIVE (select and activate row)
Read
(Auto Precharge
L
H
L
H READ (select column & start new read burst)
disabled)
L
H
L
L WRITE (select column & start write burst)
L
L
H
L PRECHARGE
10
10, 12
L
L
H
H ACTIVE (select and activate row)
Write
(Auto Precharge
L
H
L
H READ (select column & start read burst)
disabled)
L
H
L
L WRITE (select column & start new write burst)
L
L
H
L PRECHARGE
10, 11
10
L
L
H
H ACTIVE (select and activate row)
Read with
L
H
L
H READ (select column & start new read burst)
Auto Precharge
L
H
L
L WRITE (select column & start write burst)
3a, 10
3a, 10, 12
L
L
H
L PRECHARGE
L
L
H
H ACTIVE (select and activate row)
Write with
Auto Precharge
L
H
L
H READ (select column & start read burst)
L
H
L
L WRITE (select column & start new write burst)
3a, 10
3a, 10
L
L
H
L PRECHARGE
Notes:
1. This table applies when CKEn-1 was HIGH and CKEn is HIGH and after t_XSNR or t_XSRD has been met (if the previous
state was self refresh).
Elite Semiconductor Memory Technology Inc.
Publication Date : Jul. 2014
Revision : 1.1
29/48