Table of Contents
Advertisement
Specifications
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Digital input/output
Digital type
Configuration
Number of channels
Output high
Output low
Input high
Input low
Power-up / reset state
Power consumption
+5V operating
Miscellaneous
+5 Volts DC
Environmental
Operating temperature range
Storage temperature range
Humidity
Table 1. Digital I/O specifications
82C55
4 banks of 8, 4 banks of 4, programmable by bank as input or output
48 I/O
3.0 volts min @ -2.5 mA
0.4 volts max @ 2.5 mA
2.0 volts min, +5.5 volts absolute max
0.8 volts max, -0.5 volts absolute min
Input mode (high impedance)
Table 2. Power consumption specifications
37 mA typical, 55 mA max
Table 3. Miscellaneous specifications
Available at I/O connector (+5V Power)
Protected by resettable fuse:
Hold current:
Trip current:
Trip and recovery time:
Table 4. Environmental specifications
0 to 70 °C
-40 to 100 °C
0 to 95% non-condensing
17
350 mA
700 mA
100 mS
Chapter 4
Advertisement
Table of Contents
