AT89C51-20JC View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT89C51-20JC Datasheet PDF : 15 Pages
| |||
Flash Programming and Verification Waveforms - High Voltage Mode (VPP = 12V)
P1.0 - P1.7
P2.0 - P2.3
PROGRAMMING
ADDRESS
VERIFICATION
ADDRESS
tAVQV
PORT 0
tAVGL
DATA IN
tDVGL tGHDX
tGHAX
DATA OUT
ALE/PROG
EA/VPP
tSHGL
VPP
tGLGH
tGHSL
LOGIC 1
LOGIC 0
P2.7
(ENABLE)
P3.4
(RDY/BSY)
tEHSH
tGHBL
tELQV
BUSY
tWC
tEHQZ
READY
Flash Programming and Verification Waveforms - Low Voltage Mode (VPP = 5V)
P1.0 - P1.7
P2.0 - P2.3
PROGRAMMING
ADDRESS
VERIFICATION
ADDRESS
tAVQV
PORT 0
tAVGL
DATA IN
tDVGL tGHDX
tGHAX
DATA OUT
ALE/PROG
tSHGL
tGLGH
EA/VPP
LOGIC 1
LOGIC 0
P2.7
(ENABLE)
P3.4
(RDY/BSY)
tEHSH
tGHBL
tELQV
BUSY
tWC
tEHQZ
READY
4-36
AT89C51
Share Link: 