M87C257-10C1 Просмотр технического описания (PDF) - STMicroelectronics
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M87C257-10C1 Datasheet PDF : 22 Pages
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Description
Table 1.
A0-A14
Q0-Q7
E
G
ASVPP
VCC
VSS
NC
DU
Signal names
Address Inputs
Data Outputs
Chip Enable
Output Enable
Address Strobe / Program Supply
Supply Voltage
Ground
Not Connected Internally
Don’t Use
Figure 2.
DIP connections
ASVPP
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7
22
M87C257
8
21
9
20
10
19
11
18
12
17
13
16
14
15
VCC
A14
A13
A8
A9
A11
G
A10
E
Q7
Q6
Q5
Q4
Q3
AI00929
Figure 3. LCC connections
6/22
A6
A5
A4
A3
A2 9
A1
A0
NC
Q0
1 32
M87C257
17
A8
A9
A11
NC
25 G
A10
E
Q7
Q6
AI00930
M87C257
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