參數(shù)資料
型號(hào): M87C257-70C3TR
廠商: STMICROELECTRONICS
元件分類: PROM
英文描述: 32K X 8 OTPROM, 70 ns, PQCC32
封裝: LEAD FREE, PLASTIC, LCC-32
文件頁數(shù): 19/22頁
文件大小: 196K
代理商: M87C257-70C3TR
Obsolete
Product(s)
- Obsolete
Product(s)
Description
M87C257
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
A13
A8
A10
Q4
17
A0
NC
Q0
Q1
Q2
DU
Q3
A6
A3
A2
A1
A5
A4
9
A14
A9
1
ASV
PP
A11
Q6
A7
Q7
32
DU
V
CC
M87C257
A12
NC
Q5
G
E
25
V
SS
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參數(shù)描述
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