AT89S8253-24JU SL383 Atmel, AT89S8253-24JU SL383 Datasheet - Page 51

• Manufacturer Part Number: AT89S8253-24JU SL383
• Manufacturer: Atmel

AT89S8253
37. Serial Port Timing: Shift Register Mode Test Conditions
Variable Oscillator
Symbol
Parameter
Min
Max
Units
38. Shift Register Mode Timing Waveforms
(1)
39. AC Testing Input/Output Waveforms
Note:
1. AC Inputs during testing are driven at V
- 0.5V for a logic 1 and 0.45V for a logic 0. Timing measurements are made at V
CC
IH
min. for a logic 1 and V
max. for a logic 0.
IL
(1)
40. Float Waveforms
51
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