AT89C4051 Atmel Corporation, AT89C4051 Datasheet - Page 11

• Manufacturer Part Number: AT89C4051
• Manufacturer: Atmel Corporation

Specifications of AT89C4051

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 24 MHz
• Cpu: 8051-12C
• Max I/o Pins: 15
• Uart: 1
• Sram (kbytes): 0.125
• Operating Voltage (vcc): 2.7 to 6.0
• Timers: 2

14. Flash Programming and Verification Characteristics
T
Note:
15. Flash Programming and Verification Waveforms
1001F–MICRO–6/08
Symbol
V
I
t
t
t
t
t
t
t
t
t
t
t
t
A
PP
DVGL
GHDX
EHSH
SHGL
GHSL
GLGH
ELQV
EHQZ
GHBL
WC
BHIH
IHIL
PP
= 20°C to 30°C, V
1. Only used in 12-volt programming mode.
CC
Parameter
Programming Enable Voltage
Programming Enable Current
Data Setup to PROG Low
Data Hold after PROG
P3.4 (ENABLE) High to V
V
V
PROG Width
ENABLE Low to Data Valid
Data Float after ENABLE
PROG High to BUSY Low
Byte Write Cycle Time
RDY/BSY\ to Increment Clock Delay
Increment Clock High
PP
PP
= 5.0 ± 10%
Setup to PROG Low
Hold after PROG
PP
11.5
Min
200
1.0
1.0
1.0
1.0
10
10
1
0
Max
12.5
250
110
1.0
1.0
2.0
50
AT89C4051
Units
ms
µA
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
µs
V
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