m5m4v4s40ctp-12 Mitsumi Electronics, Corp., m5m4v4s40ctp-12 Datasheet - Page 6

• 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
Feb ‘97 Preliminary
ROW ACTIVE
Current State
READ
IDLE
/CS
H
H
H
4M (2-BANK x 131072-WORD x 16-BIT) Synchronous DRAM
L
L
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
H
X
H
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
L
L
/WE
MITSUBISHI ELECTRIC
X
H
X
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
X
X
X
BA, CA, A8
BA, RA
BA, A8
X
Op-Code,
Mode-Add
X
X
X
BA, CA, A8
BA, CA, A8
BA, RA
BA, A8
X
Op-Code,
Mode-Add
X
X
X
BA, CA, A8
BA, CA, A8
BA, RA
BA, A8
X
Op-Code,
Mode-Add
M5M4V4S40CTP-12, -15
Address
READ / READA
READ / READA
READ / WRITE ILLEGAL*2
PRE / PREA
PRE / PREA
PRE / PREA
Command
WRITE /
WRITEA
WRITE /
WRITEA
DESEL
DESEL
DESEL
TBST
REFA
TBST
REFA
TBST
REFA
NOP
MRS
NOP
MRS
NOP
MRS
ACT
ACT
ACT
NOP
NOP
ILLEGAL*2
Bank Active, Latch RA
NOP*4
Auto-Refresh*5
Mode Register Set*5
NOP
NOP
NOP
Begin Read, Latch CA,
Determine Auto-Precharge
Begin Write, Latch CA,
Determine Auto-Precharge
Bank Active / ILLEGAL*2
Precharge / Precharge All
ILLEGAL
ILLEGAL
NOP (Continue Burst to END)
NOP (Continue Burst to END)
Terminate Burst
Terminate Burst, Latch CA,
Begin New Read, Determine
Auto-Precharge*3
Terminate Burst, Latch CA,
Begin Write, Determine Auto-
Precharge*3
Bank Active / ILLEGAL*2
Terminate Burst, Precharge
ILLEGAL
ILLEGAL
MITSUBISHI LSIs
Action
6