m5m4v4s40ctp-12 Mitsumi Electronics, Corp., m5m4v4s40ctp-12 Datasheet - Page 5

• Manufacturer Part Number: m5m4v4s40ctp-12
• Description: 2-bank 131072-word 16-bit Synchronous Dram
• Manufacturer: Mitsumi Electronics, Corp.

SDRAM (Rev. 0.3)
COMMAND TRUTH TABLE
H=High Level, L=Low Level, V=Valid, X=Don’t Care, n=CLK cycle number
NOTE:
1. A7 =0, A0-A6 =Mode Address
Feb ‘97 Preliminary
Single Bank Precharge
Column Address Entry
Column Address Entry
Column Address Entry
Column Address Entry
Row Address Entry &
Precharge All Banks
Mode Register Set
& Write with Auto-
& Read with Auto-
Self-Refresh Entry
Self-Refresh Exit
Burst Terminate
Bank Activate
No Operation
Auto-Refresh
COMMAND
Precharge
Precharge
Deselect
& Write
& Read
4M (2-BANK x 131072-WORD x 16-BIT) Synchronous DRAM
MNEMONIC
WRITEA
READA
REFSX
DESEL
WRITE
PREA
READ
TBST
REFA
REFS
NOP
MRS
ACT
PRE
MITSUBISHI ELECTRIC
CKE
n-1
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
M5M4V4S40CTP-12, -15
CKE
X
X
X
X
X
X
X
X
X
H
H
H
X
X
n
L
/CS
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
/RAS
X
H
H
H
H
H
X
H
H
L
L
L
L
L
L
/CAS
X
H
H
H
H
X
H
H
L
L
L
L
L
L
L
/WE
X
H
H
H
H
H
H
X
H
L
L
L
L
L
L
BA
X
X
V
V
X
V
V
V
V
X
X
X
X
X
V
MITSUBISHI LSIs
A8
X
X
V
H
H
H
X
X
X
X
X
L
L
L
L
A0-7
V*1
X
X
V
X
V
V
V
V
X
X
X
X
X
X
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