m5m4v4s40ctp-12 Mitsumi Electronics, Corp., m5m4v4s40ctp-12 Datasheet - Page 9

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

FUNCTION TRUTH TABLE (continued)
ABBREVIATIONS:
H=High Level, L=Low Level, X=Don’t Care
BA=Bank Address, RA=Row Address, CA=Column Address, NOP=No Operation
NOTES:
1. All entries assume that CKE was High during the preceding clock cycle and the current clock cycle.
2. ILLEGAL to bank in specified state; function may be legal in the bank indicated by BA, depending on the state of
3. Must satisfy bus contention, bus turn around, write recovery requirements.
4. NOP to bank precharging or in idle state. May precharge bank indicated by BA.
5. ILLEGAL if any bank is not idle.
ILLEGAL = Device operation and/or data-integrity are not guaranteed.
SDRAM (Rev. 0.3)
Feb ‘97 Preliminary
Current State
that bank.
FRESHING
REGISTER
SETTING
MODE
RE-
/CS
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
4M (2-BANK x 131072-WORD x 16-BIT) Synchronous DRAM
/RAS
X
H
H
H
X
H
H
H
L
L
L
L
L
L
L
L
/CAS
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
/WE
X
H
X
H
H
X
H
X
H
H
L
L
L
L
L
L
MITSUBISHI ELECTRIC
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
M5M4V4S40CTP-12, -15
Address
READ / WRITE ILLEGAL
READ / WRITE ILLEGAL
PRE / PREA
PRE / PREA
Command
DESEL
DESEL
TBST
REFA
TBST
REFA
NOP
MRS
NOP
MRS
ACT
ACT
NOP (Idle after tRC)
NOP (Idle after tRC)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Idle after tRSC)
NOP (Idle after tRSC)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
MITSUBISHI LSIs
Action
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