參數(shù)資料
型號(hào)： TD80C51BHP
廠商： INTEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40
封裝： CERDIP-40
文件頁(yè)數(shù)： 4/21頁(yè)
文件大?。?/td> 2233K
代理商： TD80C51BHP
87C51/80C51BH/80C31BH
EXPLANATION OF THE AC SYMBOLS
Each timing symbol has 5 characters. The first char-
acter is always a `T' (stands for time). The other
characters, depending on their positions, stand for
the name of a signal or the logical status of that
signal. The following is a list of all the characters and
what they stand for.
A:Address.
C:Clock.
D:Input data.
H:Logic level HIGH.
I:Instruction (program memory contents).
L:Logic level LOW, or ALE.
P:PSEN.
Q:Output data.
R:RD signal.
T:Time.
V:Valid.
W:WR signal.
X:No longer a valid logic level.
Z:Float.
For example,
TAVLL e Time from Address Valid to ALE Low.
TLLPL e Time from ALE Low to PSEN Low.
AC CHARACTERISTICS
: (Over Operating Conditions; Load Capacitance for Port 0, ALE, and
PSEN e 100 pF; Load Capacitance for All Other Outputs e 80 pF)
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.
Symbol
Parameter
Oscillator
Units
12 MHz
24 MHz
Variable
Min
Max
Min
Max
Min
Max
1/TCLCL Oscillator Frequency
87C51/BH
3.5
12
MHz
87C51-1/BH-1
3.5
16
MHz
87C51-2/BH-2
0.5
12
MHz
87C51-24/BH-24
3.5
24
MHz
TLHLL
ALE Pulse Width
127
43
2TCLCLb40
ns
TAVLL
Address Valid to ALE Low
87C51/BH
43
TCLCLb40
ns
87C51-24/BH-24
12
TCLCLb30
ns
TLLAX
Address Hold After ALE Low
53
12
TCLCLb30
ns
TLLIV
ALE Low to Valid Instr In
87C51/BH
234
4TCLCLb100
ns
87C51-24/BH-24
91
4TCLCLb75
ns
TLLPL
ALE Low to PSEN Low
53
12
TCLCLb30
ns
TPLPH
PSEN Pulse Width
205
80
3TCLCLb45
ns
TPLIV
PSEN Low to Valid Instr In
87C51/BH
145
3TCLCLb105
ns
87C51-24/BH-24
35
3TCLCLb90
ns
12
相關(guān)PDF資料
PDF描述
TD80C51BH-2 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40
TP80C51BH-24 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP40
TS80C51BHP-2 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44
TS80C51BH-24 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP44
TS80C51BH 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44
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TD80C51FA-33 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
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