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参数资料
| 型号： | BP87C51FB |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 3/18页 |
| 文件大小： | 1527K |
| 代理商： | BP87C51FB |
AUTOMOTIVE 87C51FA/FB/FC/FC-20
AC CHARACTERISTICS
(TA eb40 Cto a125 C, VCC e 5V g 20%, VSS 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 INFORMATION-CONTACT INTEL FOR DESIGN-IN INFORMATION
EXTERNAL PROGRAM MEMORY CHARACTERISTICS
(Continued)
Symbol
Parameter
12 MHz
Variable Oscillator
Units
Oscillator
Min
Max
87C51FA/FB/FC
/ 87C51FC-20
Min
Max
TRLDV
RD Low to Valid Data In
252
5TCLCL b 165/
ns
5TCLCL b 95
TRHDX
Data Hold After RD High
0
ns
TRHDZ
Data Float After RD High
107
2TCLCL b 60
ns
TLLDV
ALE Low to Valid Data In
517
8TCLCL b 150/
ns
8TCLCL b 90
TAVDV
Address Valid to Valid Data In
585
9TCLCL b 165/
ns
9TCLCL b 90
TLLWL
ALE Low to RD or WR Low
200
300
3TCLCL b 50
3TCLCL a 50
ns
TAVWL
Address Valid to WR Low
203
4TCLCL b 130/
ns
4TCLCL b90
TQVWX
Data Valid before WR Low
33
TCLCL b 50/
ns
TCLCL b 35
TWHQX
Data Hold after WR High
33
TCLCL b 50/
ns
TCLCL b 40
TQVWH
Data Valid to WR High
433
7TCLCL b 150/
ns
7TCLCL b 70
TRLAZ
RD Low to Address Float
0
ns
TWHLH
RD or WR High to ALE High
43
123
TCLCL b 40
TCLCL 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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| BN87C51FB | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQCC44 |
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