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AT89 Datasheet(PDF) 8 Page - ATMEL Corporation

Part # AT89
Description  8-Bit Microcontroller with 1K Byte Flash
PDF  12 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89 Datasheet(HTML) 8 Page - ATMEL Corporation

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AT89C1051
4-10
Flash Programming and Verification Characteristics
TA = 0°C to 70°C, VCC = 5.0 ± 10%
Note:
Only used in 12-volt programming mode.
Flash Programming and Verification Waveforms
Symbol
Parameter
Min
Max
Units
VPP
Programming Enable Voltage
11.5
12.5
V
IPP
Programming Enable Current
250
µA
tDVGL
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
tSHGL
VPP Setup to PROG Low
10
µs
tGHSL
VPP Hold After PROG
10
µs
tGLGH
PROG Width
1
110
µs
tELQV
ENABLE Low to Data Valid
1.0
µs
tEHQZ
Data Float After ENABLE
01.0
µs
tGHBL
PROG High to BUSY Low
50
ns
tWC
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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