at89c55-12qi ATMEL Corporation, at89c55-12qi Datasheet - Page 21
at89c55-12qi
Manufacturer Part Number
at89c55-12qi
Description
8-bit Microcontroller With Bytes Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C55-12QI.pdf
(24 pages)
- Current page: 21 of 24
- Download datasheet (720Kb)
External Data Memory Cycle
External Clock Drive Waveforms
External Clock Drive
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Min
30
12
12
0
Max
33
20
20
AT89C55
Units
MHz
ns
ns
ns
ns
ns
21
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