M87C257-12F1 STMicroelectronics, M87C257-12F1 Datasheet - Page 6
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M87C257-12F1
Manufacturer Part Number
M87C257-12F1
Description
IC EPROM 256KBIT 120NS 28CDIP
Manufacturer
STMicroelectronics
Datasheet
1.M87C257-12F1.pdf
(22 pages)
Specifications of M87C257-12F1
Format - Memory
EPROMs
Memory Type
UV EPROM
Memory Size
256K (32K x 8)
Speed
120ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-CDIP (0.600", 15.24mm) Window
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M87C257-12F1
Manufacturer:
ST
Quantity:
5 120
Part Number:
M87C257-12F1
Manufacturer:
ST
Quantity:
20 000
Description
6/22
Table 1.
Figure 2.
Figure 3.
A0-A14
Q0-Q7
E
G
ASV
V
V
NC
DU
CC
SS
PP
Signal names
DIP connections
LCC connections
ASV PP
NC
Q0
A6
A5
A4
A3
A2
A1
A0
V SS
A12
Q0
Q1
Q2
A7
A6
A5
A4
A3
A2
A1
A0
9
Address Inputs
Data Outputs
Chip Enable
Output Enable
Address Strobe / Program Supply
Supply Voltage
Ground
Not Connected Internally
Don’t Use
1
2
3
4
5
6
7
8
9
10
11
12
13
14
M87C257
M87C257
17
1
32
AI00929
28
27
26
25
24
23
22
21
20
19
18
17
16
15
25
V CC
A14
A13
A8
A9
A11
G
A10
E
Q7
Q6
Q5
Q4
Q3
AI00930
A8
A9
A11
NC
G
A10
E
Q7
Q6
M87C257