Parameter | Min. | Max. | Units | Notes |
Supply Voltage |
4.5 |
5.5 |
Volts |
- |
Supply Current |
- |
100 |
µA |
A,B = 100KHz |
A,B Logic Low |
- |
0.6 |
Volts |
- |
A,B Logic High |
3.1 |
- |
Volts |
- |
A,B Frequency |
- |
180 |
kHz |
- |
Sink Output Current |
1.75 |
- |
mA |
Vout = 0.4V |
Source Output Current |
1.0 |
- |
mA |
Vout = 4.5V |
Pulse Width of Clock Output |
4.0 |
8.0 |
µS |
6µS typical |
* The clock output pulse width is 6µS.

PC6-X-X-X Input Pin-out
Pin | Name | Description |
1 |
GND |
Ground |
2 |
I |
Index |
3 |
A |
A channel |
4 |
VCC |
+5 VCC |
5 |
B |
B channel |
PC6-U-X-X Output Pin-out. Up count / Down count (LFLS7183)
Pin | Name | Description |
1 |
GND |
Ground |
2 |
I |
Index |
3 |
/DNCK |
Down clock |
4 |
VCC |
+5 VCC |
5 |
/UPCK |
Up clock |
PC6-C-X-X Output Pin-out. Clock, Up/Dn (LFLS7184)
Pin | Name | Description |
1 |
GND |
Ground |
2 |
I |
Index |
3 |
UP/DN |
Up/Down |
4 |
VCC |
+5 VCC |
5 |
/CLK |
Clock output |
Index (Pin 2)
The index signal is routed unchanged, directly from the encoder.
PC6-U-x, pin 3 (LFLS7183).
Normally high, low-true. Down counts are enabled only when B leads A (clockwise rotation). One pulse is generated per encoder cycle using the PC6-U-1 and four pulses are generated using the PC6-U-4. For example, a 500 CPR encoder will produce 500 clocks/rev. using the PC6-U-1 and 2000 clocks/rev. using the PC6-U-4. The external counter should count on the rising (high-going) edge of this output.
PC6-U-x, pin 5 (LFLS7183).
Normally high, low-true. Up counts are enabled only when A leads B (counterclockwise rotation). One pulse is generated per encoder cycle using the PC6-U-1 and four pulses are generated using the PC6-U-4. For example, a 500 CPR encoder will produce 500 clocks/rev. using the PC6-U-1 and 2000 clocks/rev. using the PC6-U-4. The external counter should count on the rising (high-going) edge of this output.
PC6-C-x, pin 3 (LFLS7184)
This output steers the external counter up or down. High = Up (A leads B), Low = Down (B leads A).
PC6-C-x, pin 5 (LFLS7184)
Normally high, low-true. One pulse is generated per encoder cycle using the PC6-C-1 and four pulses are generated using the PC6-C-4. For example, a 500 CPR encoder will produce 500 clocks/rev. using the PC6-C-1 and 2000 clocks/rev. using the PC6-C-4. The external counter should count on the rising (high-going) edge of this output.
Connector
The output connector on the PC6 is TE#640456-5. The mating connector with five 12" wires attached is the CA-C5-W5-NC-1, which uses TE#640442-5 ( see the Cables / Connectors page).