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M87C257-70XC3TR Datasheet(PDF) 6 Page - STMicroelectronics

Part # M87C257-70XC3TR
Description  Address Latched 256 Kbit (32Kb x8) UV EPROM and OTP EPROM
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M87C257-70XC3TR Datasheet(HTML) 6 Page - STMicroelectronics

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Description
M87C257
6/22
Figure 2.
DIP connections
Figure 3.
LCC connections
Table 1.
Signal names
A0-A14
Address Inputs
Q0-Q7
Data Outputs
E
Chip Enable
G
Output Enable
ASVPP
Address Strobe / Program Supply
VCC
Supply Voltage
VSS
Ground
NC
Not Connected Internally
DU
Don’t Use
A1
A0
Q0
A7
A4
A3
A2
A6
A5
A13
A10
A8
A9
Q7
A14
A11
G
E
Q5
Q1
Q2
Q3
VSS
Q4
Q6
A12
ASVPP
VCC
AI00929
M87C257
8
1
2
3
4
5
6
7
9
10
11
12
13
14
16
15
28
27
26
25
24
23
22
21
20
19
18
17
AI00930
A8
A10
17
A0
NC
Q0
A6
A3
A2
A1
A5
A4
9
A9
1
A11
Q6
Q7
32
M87C257
NC
G
E
25


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