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參數(shù)資料
| 型號(hào)： | NM27C256QE90 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 262,144-Bit (32K x 8) High Performance CMOS EPROM |
| 中文描述： | 262,144位（32K的× 8）高性能CMOS存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大小： | 125K |
| 代理商： | NM27C256QE90 |
2
www.fairchildsemi.com
N
Connection Diagrams
Commercial Temp. Range (0
°
C to +70
°
C)
V
CC
= 5V
±
10%
Parameter/Order Number
Access Time (ns)
NM27C256 Q, N, V 90
90
NM27C256 Q, N, V 100
100
NM27C256 Q, N, V 120
120
NM27C256 Q, N, V 150
150
NM27C256 Q, N, V 200
200
Extended Temp. Range (-40
°
C to +85
°
C)
V
CC
= 5V
±
10%
Parameter/Order Number
Access Time (ns)
NM27C256 QE, NE, VE 120
120
NM27C256 QE, NE, VE 150
150
NM27C256 QE, NE, VE 200
200
Note:
Surface mount PLCC package available for commercial and extended
temperature ranges only.
Package Types: NM27C256 Q, N, V XXX
Q = Quartz-Windowed Ceramic DIP
N = Plastic OTP DIP
V = Surface-Mount PLCC
All Packages conform to the JEDEC standard.
All versions are guaranteed to function for slower speeds.
Pin Names
Symbol
Description
A0–A14
Addresses
CE/PGM
Chip Enable/Program
OE
Output Enable
O0–O7
Outputs
XX
Don’t Care (during Read)
PLCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
PP
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
A19
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
27C080 27C040
27C040
VCC
A18
A17
A14
A13
A8
A9
A11
OE
A10
CE/PGM
O7
O6
O5
O4
O3
XX/VPP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
DlP
NM27C256
V
CC
A14
A13
A8
A9
A11
OE
A10
CE/PGM
O7
O6
O5
O4
O3
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
27C512
27C512
XX/VPP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
27C010
XX/VPP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
27C020
27C020
VCC
XX/PGM
A17
A14
A13
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
27C010
VCC
XX/PGM
XX
A14
A13
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
27C080
VCC
A18
A17
A14
A13
A8
A9
A11
OE/VPP
A10
CE/PGM
O7
O6
O5
O4
O3
VCC
A14
A13
A8
A9
A11
OE/VPP
A10
CE/PGM
O7
O6
O5
O4
O3
Note:
Compatible EPROM pin configurations are shown in the blocks adjacent to the NM27C256 pins.
A
8
A
9
A
11
XX
OE
A
10
CE/PGM
O
7
O
6
A
6
A
5
A
4
A
3
A
2
A
1
A
0
XX
O
0
A
7
A
1
V
P
X
V
C
A
1
A
1
O
1
O
2
G
X
O
3
O
4
O
5
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
14 15 16 17 18 19 20
4 3 2 1 32 31 30
DS010833-2
DS010833-3
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