Data Sheet
PT8A977P/977W/978P/978LW
5-Function Remote Controller
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Pin Description
Pin Description of 977P/977W
Pin No.
Pin Name
Right
Description
1
2
3
4
5
6
With Pull-up resistor, rightward function selected if this pin connected to GND.
With Pull-up resistor, this pin is used for testing mode.
Negative power supply
Test
GND
With Pull-up resistor, backward function selected if this pin connected to GND.
With Pull-up resistor, forward function selected if this pin connected to GND.
Backward
Forward
Turbo
SC
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
7
SO
8
Vcc
9
Power control output pin
PC
10
11
12
13
14
Oscillator output pin
OSCO
OSCI
OFF
Oscillator input pin
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.
Left
Pin Description of 978P/978LW
Pin Name
Description
Pin No.
1
Output pin for the amplifier 2
Negative power supply
Input pin of the encoding signal
Oscillator input pin
VO2
GND
SI
2
3
4
5
6
OSCI
OSCO
Oscillator output pin
Right
Left
Rightward output pin
Leftward output pin
7
With Pull-up resistor, rightward function disabled if this pin connected to GND.
With Pull-up resistor, leftward function disabled if this pin connected to GND.
Backward output pin
RD
8
LD
9
Backward
Forward
Turbo
Vcc
10
11
12
13
14
15
16
Forward output pin
Turbo output pin
Positive power supply
Input pin for the amplifier 1
VI1
VO1
Output pin for the amplifier 1
Input pin for the amplifier 2
VI2
PT0074(10/01)
Ver:1
3
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
