AT89C2051-12PA ATMEL [ATMEL Corporation], AT89C2051-12PA Datasheet - Page 14

• Manufacturer Part Number: AT89C2051-12PA
• Description: 8-Bit Microcontroller with 2K Bytes Flash
• Manufacturer: ATMEL [ATMEL Corporation]

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)
0368G–MICRO–6/05
IH