Xerox WorkCentre Pro 412 Service Manual page 89

Circuit Description
5-5-1-1 Electrical Specifications
This section provides the PM-22's electrical specifications.
Parameter
Input capacitance for all input only
pins
Input capacitance for all bidirec-
tional pins
Input high voltage for all inputs
Input low voltage for all inputs
Output high voltage for all outputs
Output low voltage for all outputs
Input current with input at VDD
Input current with input at GND
Tri-state output current with output
at VDD
Tri-state output current with output
at GND
Power supply current
DC Characteristics
Table presents the PM-22's DC characteristics.
IMPORTANT: CLOCK pin timing is measured at TTL levels, not CMOS. The system CLOCK driver must
be configured correctly in order to ensure that duty cycle and Vil specifications are met.
5-5-1-2 Pin Classification and Loading
Table describes the pin classification and loading of the FaxCentre F12's signal pins. The capacitance col-
umn presents the values used to derive the specification timing. The current columns present maximum
values. Table uses the following notation for pin types:
5-51
Symbol Min.
Cin 0
Cio 0
Vin 2.0
Vil GND -0.3
Voh 2.4
Vol GND
Iih -30
Iil -30
Iozh -100
Iozl -100
Icc 0
3/03 WorkCentre Pro 412, FaxCentre F12 &
Max Units
10 pF
15 pF
Volts
VDDBIAS
+0.3
0.8 Volts
VDD Volts
0.4 Volts
30
30
100 µAµA
100
95 mA
WorkCentre M15/M15i