參數(shù)資料
型號: D87C51
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, UVPROM, 12 MHz, MICROCONTROLLER, CDIP40
封裝: CERDIP-40
文件頁數(shù): 14/21頁
文件大?。?/td> 284K
代理商: D87C51
87C51/80C51BH/80C31BH
EXTERNAL MEMORY CHARACTERISTICS
All parameter values apply to all devices unless otherwise indicated. In this table, 87C51/BH refers to
87C51/BH, 87C51-1/BH-1 and 87C51-2/BH-2. (Continued)
Symbol
Parameter
Oscillator
Units
12 MHz
24 MHz
Variable
Min
Max
Min
Max
Min
Max
TWHQX
Data Hold After WR
87C51/BH
87C51-24/BH-24
33
TCLCL
b
50
TCLCL
b
35
ns
ns
7
TQVWH
Data Valid to WR High
87C51/BH
87C51-24/BH-24
433
7TCLCL
b
150
7TCLCL
b
70
ns
ns
222
TRLAZ
RD Low to Address Float
0
0
0
ns
TWHLH
RD or WR High to ALE High
87C51/BH
87C51-24/BH-24
43
123
TCLCL
b
40
TCLCL
b
30
TCLCL
a
40
TCLCL
a
30
ns
ns
12
71
EXTERNAL PROGRAM MEMORY READ CYCLE
272335–12
EXTERNAL DATA MEMORY READ CYCLE
272335–13
14
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參數(shù)描述
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