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AT89C55WD Datasheet(PDF) 25 Page - ATMEL Corporation

Part # AT89C55WD
Description  8-bit Microcontroller with 20K Bytes Flash
PDF  37 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C55WD Datasheet(HTML) 25 Page - ATMEL Corporation

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AT89C55WD
1921B–MICRO–09/02
Flash Programming and Verification Characteristics
T
A =20°Cto30°C, VCC =4.5V to5.5V
Symbol
Parameter
Min
Max
Units
V
PP
Programming Supply Voltage
11.5
12.5
V
I
PP
Programming Supply Current
10
mA
ICC
VCC Supply Current
30
mA
1/tCLCL
Oscillator Frequency
3
33
MHz
tAVGL
Address Setup to PROG Low
48tCLCL
t
GHAX
Address Hold After PROG
48t
CLCL
t
DVGL
Data Setup to PROG Low
48t
CLCL
t
GHDX
Data Hold After PROG
48t
CLCL
tEHSH
P2.7 (ENABLE) HightoVPP
48tCLCL
tSHGL
VPP Setup to PROG Low
10
µs
tGHSL
VPP Hold After PROG
10
µs
t
GLGH
PROG Width
0.2
1
µs
t
AVQV
Address to Data Valid
48t
CLCL
t
ELQV
ENABLE Low to Data Valid
48t
CLCL
tEHQZ
Data Float After ENABLE
048tCLCL
tGHBL
PROG High to BUSY Low
1.0
µs
tWC
Byte Write Cycle Time
80
µs



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