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AT89C51-20JC Просмотр технического описания (PDF) - Atmel Corporation
Номер в каталоге
Компоненты Описание
производитель
AT89C51-20JC
8-Bit Microcontroller with 4K Bytes Flash
Atmel Corporation
AT89C51-20JC Datasheet PDF : 15 Pages
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Flash Programming and Verification Waveforms - High Voltage Mode (V
PP
= 12V)
P1.0 - P1.7
P2.0 - P2.3
PROGRAMMING
ADDRESS
VERIFICATION
ADDRESS
t
AVQV
PORT 0
t
AVGL
DATA IN
t
DVGL
t
GHDX
t
GHAX
DATA OUT
ALE/PROG
EA/V
PP
t
SHGL
V
PP
t
GLGH
t
GHSL
LOGIC 1
LOGIC 0
P2.7
(ENABLE)
P3.4
(RDY/BSY)
t
EHSH
t
GHBL
t
ELQV
BUSY
t
WC
t
EHQZ
READY
Flash Programming and Verification Waveforms - Low Voltage Mode (V
PP
= 5V)
P1.0 - P1.7
P2.0 - P2.3
PROGRAMMING
ADDRESS
VERIFICATION
ADDRESS
t
AVQV
PORT 0
t
AVGL
DATA IN
t
DVGL
t
GHDX
t
GHAX
DATA OUT
ALE/PROG
t
SHGL
t
GLGH
EA/V
PP
LOGIC 1
LOGIC 0
P2.7
(ENABLE)
P3.4
(RDY/BSY)
t
EHSH
t
GHBL
t
ELQV
BUSY
t
WC
t
EHQZ
READY
4-36
AT89C51
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