User Manual

4
4. Serial interface
specification
The serial interface on the RIM 801D operates at HCMOS electrical levels.
This interface can be connected directly to a micro-controller, or through a
UART to a microprocessor data bus.
Signal specifications (Standard 5V interface)
Outputs
Output High Voltage @ 10µA
4.5 Volts Min.
Output Low Voltage @ -10µA
0.4 Volts Max.
Short Circuit Current 24 mA Max.
Recommended Output Capacitance
(To Filter Interface Lines)
390 pF
Inputs
Input High Voltage 3.5 Volts Min.