參數(shù)資料
型號: LH5P1632
廠商: Sharp Corporation
英文描述: CMOS 512K (32K x 16) Pseudo-Static RAM
中文描述: 為512k的CMOS(32K的× 16),偽靜態(tài)存儲器
文件頁數(shù): 5/10頁
文件大?。?/td> 89K
代理商: LH5P1632
TRUTH TABLE
INPUT
OUTPUT
MODE
NOTE
CE
UOE
LOE/RFSH
UWR
LWR
I/O
9
– I/O
16
I/O
1
– I/O
8
UPPER BYTE
LOWER BYTE
H
L
L
L
L
L
L
L
L
L
H
D
L
H
L
H
D
D
H
D
L
D
D
L
L
H
H
D
H
D
L
D
D
H
H
H
H
L
L
H
L
H
D
D
H
H
H
H
L
H
L
H
L
D
High-Z
D
OUT
High-Z
D
OUT
High-Z
D
IN
D
IN
High-Z
D
IN
D
OUT
High-Z
High-Z
D
OUT
D
OUT
High-Z
High-Z
D
IN
High-Z
D
IN
D
OUT
D
IN
High-Z
Standby
Read
Read
Read
CE only refresh
Read
CE only refresh
Write
Write
CE only refresh
Write
Read
CE only refresh
CE only refresh
Write
CE only refresh
Write
Read
Write
Inhibit
Inhibit
Auto Refresh
NOTES:
D = Don’t care.
High-Z = High impedance.
5P1632-3
t
OHZ
VALID-DATA
OUTPUT
V
IH
V
IL
CE
t
P
t
RC
t
CE
t
P
t
AS
ADDRESS
INPUT
t
AH
V
IH
V
IL
A
0
- A
14
V
IH
V
IL
t
OEH
t
OEL
t
OES
V
IH
V
IL
LWR
UWR
t
RCS
t
RCH
t
CEA
t
CHZ
t
OEA
t
OLZ
t
CLZ
V
OH
V
OL
I/O
1
- I/O
16
LOE/RFSH
UOE
Figure 4. Read Cycle
CMOS 512K (32K
×
16) Pseudo-Static RAM
LH5P1632
5
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