AMD27C256 Datasheet, PDF (2/12 Pages) Advanced Micro Devices – 256 Kilobit (32,768 x 8-Bit) CMOS EPROM

PRODUCT SELECTOR GUIDE
Family Part No.
Ordering Part No:
VCC ± 5%
VCC ± 10%
-55
-70
Max Access Time (ns)
55
70
CE (E) Access Time (ns)
55
70
OE (G) Access Time (ns)
35
40
CONNECTION DIAGRAMS
Top View
DIP
VPP ¹
A12 2
A7 3
A6 ⁴
A5 5
A4 6
A3 7
A2 ⁸
A1 9
A0 10
DQ0 11
DQ1 12
DQ2 ¹³
VSS ¹⁴
28 _VCC
27 _A14
26 A13
25 _A8
24 A9
23 A11
22 _{OE (G)}
21 _A10
20 _{CE (E)}
19 DQ7
18 DQ6
17 DQ5
16 DQ4
15 DQ3
08007H-2
Notes:
1. JEDEC nomenclature is in parentheses.
AMD
Am27C256
-90
-120
-150
90
120
150
90
120
150
40
50
50
-200
200
200
50
-255
250
250
50
PLCC
A6
A5
A4
A3
A2
A1
A0
NC
DQ0
4 3 2 1 32 31 30
5
29
6
28
7
27
8
26
9
25
10
24
11
23
12
22
13
21
14 15 16 17 18 19 20
A8
A9
A11
NC
OE (G)
A10
CE (E)
DQ7
DQ6
08007H-3
Am27C256
2-33