參數(shù)資料
型號: LP87C51FC-20
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
中文描述: 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 11/18頁
文件大?。?/td> 250K
代理商: LP87C51FC-20
AUTOMOTIVE 87C51FA/FB/FC/FC-20
AC CHARACTERISTICS
(T
A
e b
40
§
C to
a
125
§
C, V
CC
e
5V
g
20%, V
SS
e
0V, Load Capaci-
tance for Port 0, ALE/PROG and PSEN
e
100 pF, Load Capacitance for All Other Outputs
e
80 pF)
(Continued)
ADVANCED INFORMATIONDCONTACT INTEL FOR DESIGN-IN INFORMATION
EXTERNAL PROGRAM MEMORY CHARACTERISTICS
(Continued)
Symbol
Parameter
12 MHz
Oscillator
Variable Oscillator
Units
Min
Max
87C51FA/FB/FC
/
87C51FC-20
Min
Max
T
RLDV
RD Low to Valid Data In
252
5T
CLCL
b
165/
5T
CLCL
b
95
*
ns
T
RHDX
Data Hold After RD High
0
0
ns
T
RHDZ
Data Float After RD High
107
2T
CLCL
b
60
8T
CLCL
b
150/
8T
CLCL
b
90
*
9T
CLCL
b
165/
9T
CLCL
b
90
*
3T
CLCL
a
50
ns
T
LLDV
ALE Low to Valid Data In
517
ns
T
AVDV
Address Valid to Valid Data In
585
ns
T
LLWL
ALE Low to RD or WR Low
200
300
3T
CLCL
b
50
4T
CLCL
b
130/
4T
CLCL
b
90
*
T
CLCL
b
50/
T
CLCL
b
35
*
T
CLCL
b
50/
T
CLCL
b
40
*
7T
CLCL
b
150/
7T
CLCL
b
70
*
ns
T
AVWL
Address Valid to WR Low
203
ns
T
QVWX
Data Valid before WR Low
33
ns
T
WHQX
Data Hold after WR High
33
ns
T
QVWH
Data Valid to WR High
433
ns
T
RLAZ
RD Low to Address Float
0
0
ns
T
WHLH
RD or WR High to ALE High
43
123
T
CLCL
b
40
T
CLCL
a
40
ns
NOTE:
*
Timings specified for the 87C51FC-20 are valid at 20 MHz only. For timing information below 20 MHz, use the 87C51FA/
FB/FC timings.
11
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