參數(shù)資料
型號(hào): V53C16256H
廠商: Mosel Vitelic, Corp.
英文描述: 256K x 16 FAST PAGE MODE CMOS DYNAMIC RAM
中文描述: 256K × 16快速頁面模式的CMOS動(dòng)態(tài)隨機(jī)存儲(chǔ)器
文件頁數(shù): 9/19頁
文件大小: 146K
代理商: V53C16256H
9
MOSEL V ITELIC
V53C16256H
V53C16256H Rev. 2.3 June 1998
Truth Table
Notes:
1. Byte Write cycles LCAS or UCAS active.
2.
Byte Read cycles LCAS or UCAS active.
3.
Only one of the two CAS must be active (LCAS or UCAS).
Function
RAS
LCAS
UCAS
WE
OE
ADDRESS
I/O
Notes
Standby
H
H
H
X
X
High-Z
Read: Word
L
L
L
H
L
ROW/COL
Data Out
Read: Lower Byte
L
L
H
H
L
ROW/COL
Lower Byte, Data-Out
Upper Byte, High-Z
Read: Upper Byte
L
H
L
H
L
ROW/COL
Lower Byte, High-Z
Upper Byte, Data-Out
Write: Word (Early-Write)
L
L
L
L
X
ROW/COL
Data-In
Write: Lower Byte (Early)
L
L
H
L
X
ROW/COL
Lower Byte, Data-In
Upper Byte, High-Z
Read: Upper Byte (Early)
L
H
L
L
X
ROW/COL
Lower Byte, High-Z
Upper Byte, Data-In
Read-Write
L
L
L
H
L
L
H
ROW/COL
Data-Out, Data-In
1, 2
Page-Mode Read
L
H
L
H
L
H
L
COL
Data-Out
2
Page-Mode Write
L
H
L
H
L
L
X
COL
Data-In
2
Page-Mode Read-Write
L
H
L
H
L
H
L
L
H
COL
Data-Out, Data-In
1, 2
Hidden Refresh Read
L
H
L
L
L
H
L
ROW/COL
Data-Out
2
RAS-Only Refresh
L
H
H
X
X
ROW
High-Z
CBR Refresh
H
L
L
L
X
X
High-Z
3
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