
Data Sheet
PT8A977P/977W/978P/978LW
5-Function Remote Controller
PT0074(10/01)
Ver:1
3
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Pin Description of 978P/978LW
Pin No.
1
2
3
5
6
4
7
8
9
10
11
12
13
14
Pin Name
Description
Output pin for the amplifier 2
15
16
VI2
VO2
GND
SI
OSCI
OSCO
LD
Backward
Forward
Turbo
V
cc
VI1
VO1
RD
Right
Left
Input pin for the amplifier 2
Input pin of the encoding signal
Oscillator input pin
Oscillator output pin
Rightward output pin
Leftward output pin
With Pull-up resistor, leftward function disabled if this pin connected to GND.
Backward output pin
Forward output pin
Turbo output pin
Positive power supply
Input pin for the amplifier 1
Output pin for the amplifier 1
With Pull-up resistor, rightward function disabled if this pin connected to GND.
Negative power supply
Pin Description
Pin Description of 977P/977W
Pin No.
1
2
3
5
6
4
7
8
9
10
11
12
13
14
Pin Name
Right
OFF
Left
Backward
Forward
Turbo
SC
SO
V
cc
PC
OSCO
OSCI
GND
Test
Description
With Pull-up resistor, rightward function selected if this pin connected to GND.
With Pull-up resistor, this pin is used for testing mode.
With Pull-up resistor, this pin is used to shut down the external power supply.
With Pull-up resistor, leftward function selected if this pin connected to GND.
With Pull-up resistor, backward function selected if this pin connected to GND.
Negative power supply
With Pull-up resistor, forward function selected if this pin connected to GND.
With Pull-up resistor, turbo function selected if this pin connected to GND.
Output pin of the encoding signal with carrier frequency
Output pin of the encoding signal without carrier frequency
Positive power supply
Power control output pin
Oscillator output pin
Oscillator input pin