參數(shù)資料
型號: LH53259
廠商: Sharp Corporation
英文描述: CMOS 256K (32K x 8) MROM
中文描述: 的CMOS 256K(32K的× 8)MROM
文件頁數(shù): 2/6頁
文件大?。?/td> 59K
代理商: LH53259
NOTE:
1.
The active level of OE/OE is mask-programmable.
TRUTH TABLE
CE
OE/OE
MODE
D
0
- D
7
SUPPLY CURRENT
NOTE
H
X
Non selected
High-Z
Standby
1
L
L/H
H/L
Operating
Selected
D
OUT
NOTE:
1.
X = H or L
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
Supply voltage
V
CC
–0.3 to +7.0
V
53259-2
A
3
A
2
A
1
A
0
A
12
A
11
A
10
A
9
A
8
A
7
A
6
A
5
5
28
V
CC
2
23
21
24
25
4
7
8
9
10
A
4
16
D
4
17
D
5
18
D
6
11
D
0
19
D
7
MEMORY
MATRIX
(32,768 x 8)
SENSE AMPLIFIER
14
GND
3
D
1
D
2
D
3
22
15
12
13
6
A
13
26
OE/OE
A
CE
A
COLUMN SELECTOR
CE
BUFFER
OE
BUFFER
A
14
27
20
TIMING
GENERATOR
NOTE:
Pin numbers apply to the 28-pin DIP or SOP.
OUTPUT BUFFER
Figure 3. LH53259 Block Diagram
PIN DESCRIPTION
SIGNAL
PIN NAME
NOTE
A
0
– A
14
D
0
– D
7
CE
OE/OE
Address input
Data output
Chip enable input
Output enable input
1
SIGNAL
PIN NAME
NOTE
V
CC
GND
NC
Power supply (+5 V)
Ground
No connection
LH53259
CMOS 256K MROM
2
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