參數(shù)資料
型號: LH532000B-1
廠商: Sharp Corporation
英文描述: CMOS 2M (256K x 8/128K x 16) MROM
中文描述: 200萬的CMOS(256 × 8/128K × 16)MROM
文件頁數(shù): 3/8頁
文件大小: 72K
代理商: LH532000B-1
NOTES:
1.
D
/A
pin becomes LSB address input (A
) when the BYTE pin is set to be LOW in byte mode,
and data output (D
15
) when set to be HIGH in word mode.
2.
The active levels of OE/OE and OE
1
/OE
1
/DC are mask-programmable.
532000B1-3
21
V
CC
A
-1
22 24 26
13
D
0
28
MEMORY
MATRIX
(262,144 x 8 )
(131,072 x 16 )
SENSE AMPLIFIER
30
GND
D
1
D
2
D
3
D
4
D
5
D
6
D
7
12
19
15 17
OE/OE
A
CE
A
COLUMN SELECTOR
CE
BUFFER
OE
BUFFER
10
TIMING
GENERATOR
DATA SELECTOR/OUTPUT BUFFER
BYTE/WORD
SWITCHOVER
CIRCUIT
ADDRESS
BUFFER
31
BYTE
A
6
A
5
A
4
A
3
A
2
A
1
A
0
A
15
A
14
A
13
A
12
A
11
A
10
A
9
A
8
A
7
A
16
36
37
39
40
3
4
5
6
7
8
9
38
2
33
34
35
32
1
11
GND
29
23 25 27
14
D
8
D
9
D
10
D
11
D
12
D
13
D
14
D
15
29
20
16 18
OE
1
/OE
1
/DC
NOTE:
Pin numbers apply to 40-pin DIP or SOP.
Figure 3. LH532000B-1 Block Diagram
PIN DESCRIPTION
SIGNAL
PIN NAME
NOTE
A
–1
– A
16
D
0
– D
15
BYTE
CE
Address input
Data output
Byte/word mode switch
Chip enable input
1
1
1
SIGNAL
PIN NAME
NOTE
OE/OE
OE
1
/OE
1
/DC
V
CC
GND
Output enable input
Output enable input
Power supply (+5 V)
Ground
2
2
CMOS 2M MROM
LH532000B-1
3
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