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AT89C2051-24PU Datasheet(PDF) 11 Page - ATMEL Corporation

Part No. AT89C2051-24PU
Description  8-bit Microcontroller with 2K Bytes Flash
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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 11 page
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11
0368H–MICRO–6/08
AT89C2051
Note:
1.
Only used in 12-volt programming mode.
15. Flash Programming and Verification Waveforms
14. Flash Programming and Verification Characteristics
T
A = 0°C to 70°C, VCC = 5.0 ± 10%
Symbol
Parameter
Min
Max
Units
V
PP
Programming Enable Voltage
11.5
12.5
V
IPP
Programming Enable Current
250
µA
t
DVGL
Data Setup to PROG Low
1.0
µs
tGHDX
Data Hold after PROG
1.0
µs
tEHSH
P3.4 (ENABLE) High to VPP
1.0
µs
t
SHGL
V
PP Setup to PROG Low
10
µs
tGHSL
VPP Hold after PROG
10
µs
tGLGH
PROG Width
1
110
µs
t
ELQV
ENABLE Low to Data Valid
1.0
µs
tEHQZ
Data Float after ENABLE
01.0
µs
tGHBL
PROG High to BUSY Low
50
ns
t
WC
Byte Write Cycle Time
2.0
ms
tBHIH
RDY/BSY\ to Increment Clock Delay
1.0
µs
tIHIL
Increment Clock High
200
ns




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