AT89C2051 Atmel Corporation, AT89C2051 Datasheet - Page 14

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AT89C2051

Manufacturer Part Number
AT89C2051
Description
Manufacturer
Atmel Corporation
Datasheet

Specifications of AT89C2051

Flash (kbytes)
2 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

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21. Shift Register Mode Timing Waveforms
22. AC Testing Input/Output Waveforms
Note:
23. Float Waveforms
Note:
14
1. AC Inputs during testing are driven at V
1. For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to
AT89C2051
min. for a logic 1 and V
float when 100 mV change from the loaded V
(1)
IL
max. for a logic 0.
CC
- 0.5V for a logic 1 and 0.45V for a logic 0. Timing measurements are made at V
OH
/V
OL
level occurs.
(1)
0368H–MICRO–6/08
IH

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