AT89C55WD View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT89C55WD' PDF : 35 Pages View PDF
22. Flash Programming and Verification Characteristics
TA = 20°C to 30°C, VCC = 4.5V to 5.5V
Symbol
Parameter
Min
VPP
IPP
ICC
1/tCLCL
tAVGL
tGHAX
tDVGL
tGHDX
tEHSH
tSHGL
tGHSL
tGLGH
tAVQV
tELQV
tEHQZ
tGHBL
tWC
Programming Supply Voltage
Programming Supply Current
VCC Supply Current
Oscillator Frequency
Address Setup to PROG Low
Address Hold After PROG
Data Setup to PROG Low
Data Hold After PROG
P2.7 (ENABLE) High to VPP
VPP Setup to PROG Low
VPP Hold After PROG
PROG Width
Address to Data Valid
ENABLE Low to Data Valid
Data Float After ENABLE
PROG High to BUSY Low
Byte Write Cycle Time
11.5
3
48tCLCL
48tCLCL
48tCLCL
48tCLCL
48tCLCL
10
10
0.2
0
Max
Units
12.5
V
10
mA
30
mA
33
MHz
µs
µs
1
µs
48tCLCL
48tCLCL
48tCLCL
1.0
µs
80
µs
24 AT89C55WD
1921C–MICRO–3/05
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