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8051AHP View Datasheet(PDF) - Intel

Part NameDescriptionManufacturer
8051AHP MCS@51 8-BIT CONTROL-ORIENTED MICROCONTROLLERS Intel
Intel Intel
8051AHP Datasheet PDF : 21 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
MCS@51 CONTROLLER
EXTERNAL PROGRAM MEMORY CHARACTERISTICS (Continued)
Symbol
I---%# ‘arame’er
cillator
Max
VariableOscillator
Min
Max
Units
TLLWL ALE Low to RD or WR Low
200
300
3TCLCL–50 3TCLCL+ 50 ns
TAVWL Address to ~ or WR Low
203
4TCLCL– 130
ns
I TQVWX Data Valid to WR Transition
8751 H
13
TCLCL–70
ns
All Others
23
TCLCL–60
ns
TQVWH Data Valid to WR High
433
7TCLCL– 150
ns
TWHQX Data Hold after WR
33
TCLCL–50
ns
TRLAZ RD Low to Address Float
20 I
I
20
I ns I
TWHLH RD or WR High to ALE High
8751H
33
All Others
43
133
TCLCL–50
TCLCL+ 50 ns
123
TCLCL–40
TCLCL+40
ns
NOTE:
“The 8751H-8 is identicalto the 8751Hbut only o~eratesutI to 8 MHz.Whencalculatingthe AC Characteristicsfor the
8751 H-8, use the 8751 H formula for variable oscillators.
10
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