m5m4v4s40ctp-12 Mitsumi Electronics, Corp., m5m4v4s40ctp-12 Datasheet - Page 8

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

SDRAM (Rev. 0.3)
FUNCTION TRUTH TABLE (continued)
Feb ‘97 Preliminary
Current State
ACTIVATING
CHARGING
WRITE RE-
COVERING
PRE -
ROW
/CS
4M (2-BANK x 131072-WORD x 16-BIT) Synchronous DRAM
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
/RAS
X
H
H
H
X
H
H
H
X
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
/CAS
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
/WE
MITSUBISHI ELECTRIC
X
H
X
H
H
X
H
X
H
H
X
H
X
H
H
L
L
L
L
L
L
L
L
L
M5M4V4S40CTP-12, -15
X
X
X
BA, CA, A8
BA, RA
BA, A8
X
Op-Code,
Mode-Add
X
X
X
BA, CA, A8
BA, RA
BA, A8
X
Op-Code,
Mode-Add
X
X
X
BA, CA, A8
BA, RA
BA, A8
X
Op-Code,
Mode-Add
Address
READ / WRITE ILLEGAL*2
READ / WRITE ILLEGAL*2
READ / WRITE ILLEGAL*2
PRE / PREA
PRE / PREA
PRE / PREA
Command
DESEL
DESEL
DESEL
TBST
REFA
TBST
REFA
TBST
REFA
NOP
MRS
NOP
MRS
NOP
MRS
ACT
ACT
ACT
NOP (Idle after tRP)
NOP (Idle after tRP)
ILLEGAL*2
ILLEGAL*2
NOP*4 (Idle after tRP)
ILLEGAL
ILLEGAL
NOP (Row Active after tRCD)
NOP (Row Active after tRCD)
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
MITSUBISHI LSIs
Action
8