參數(shù)資料
型號: P2V28S20ATP-8
廠商: Vanguard International Semiconductor Corporation
英文描述: 128Mb SDRAM Specification
中文描述: 128Mb的SDRAM內(nèi)存規(guī)格
文件頁數(shù): 12/51頁
文件大小: 652K
代理商: P2V28S20ATP-8
JULY.2000
Rev.2.2
128Mb Synchronous DRAM
P2V28S20ATP-7,-75,-8 (4-BANK x 8,388,608-WORD x 4-BIT)
P2V28S30ATP-7,-75,-8 (4-BANK x 4,194,304-WORD x 8-BIT)
P2V28S40ATP-7,-75,-8 (4-BANK x 2,097,152-WORD x 16-BIT)
Page-11
FUNCTION TRUTH TABLE (continued)
Current State
/CS
/RAS /CAS
/WE
Address
Command
Action
H
X
X
X
X
DESEL
NOP
WRITE
RECOVERING
L
H
H
H
X
NOP
NOP
L
H
H
L
TBST
ILLEGAL*2
L
H
L
X
BA, CA, A10
READ /
WRITE
ILLEGAL*2
L
L
H
H
BA, RA
ACT
ILLEGAL*2
L
L
H
L
BA, A10
PRE /
PREA
ILLEGAL*2
L
L
L
H
X
REFA
ILLEGAL
L
L
L
L
Op-Code,
Mode-Add
MRS
ILLEGAL
REFRESHING
H
X
X
X
X
DESEL
NOP (Idle after tRC)
L
H
H
H
X
NOP
NOP (Idle after tRC)
L
H
H
L
TBST
ILLEGAL
L
H
L
X
BA, CA, A10
READ /
WRITE
ILLEGAL
L
L
H
H
BA, RA
ACT
ILLEGAL
L
L
H
L
BA, A10
PRE /
PREA
ILLEGAL
L
L
L
H
X
REFA
ILLEGAL
L
L
L
L
Op-Code,
Mode-Add
MRS
ILLEGAL
BA
BA
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