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PT8A972 Datasheet Preview

PT8A972 Datasheet

(PT8A972 - PT8A974) 8-Direction Remote Controller

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Data Sheet
PT8A9702/973/973L/974/974L
8-Direction Remote Controller
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Features
• The PT8A9702 works as the encoder and the
PT8A973/974/973L/974L works as the decoder
• 8-direction control
• Operation power supply for PT8A9702: 3V to 12V
(with series resistor)
• Auto power-off if no key pressed (PT8A9702)
• Motor current limit to meet toy safety standard
HD271 (PT8A973/974/973L/974L)
• Low operating current
• On-chip oscillator with an external resistor
• On-chip reversing amplifiers
• Built-in 3.8V Zener (9702), 3.7V Zener (Vz)
(973/974) and 3.1V Zener (Vz) (973L/974L)
• Few external components needed
• Pin to pin compatible with TX6/RX6
General Description
The PT8A9702P works as encoder, it can provide 8-
direction remote control for toy car application with
PT8A973/973L/PT8A974/974L together. Input 8-
direction named F, FL, L, BL, BR, R, FR, and B they
are combined with F, L, B, and R four signals. In
decoder side, use output signal Left & Right to drive
Right Motor, and use For & Back to drive Left Motor.
Their detail relations please see truth table.
Ordering Information
Device Name
Encoder
Part No.
PT8A9702P
Package
16-pin PDIP
Decoder
PT8A973P
PT8A973LP
PT8A974P
PT8A974LP
18-pin PDIP
20-pin PDIP
Block Diagram
Block Diagram of PT8A9702
OSCI
OSCO
Oscillator f0
Timing
Generator
Forward
mBackward
oLeft
.cRight
u F1
t4 F2
F3/F4
www.datasheePT0097(11/02)
Latch
Circuit
Logic
Control
Counters
1
f0/2
MUX
PC
SC
SO
VCC
Ver:2




Pericom Technology

PT8A972 Datasheet Preview

PT8A972 Datasheet

(PT8A972 - PT8A974) 8-Direction Remote Controller

No Preview Available !

Data Sheet
PT8A9702/973/973L/974/974L
8-Direction Remote Controller
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Block Diagram of PT8A973/973L
OSCI
OSCO
SI
VI1
VI2
LRTD
VT1
Oscillator
Amp
VO1
VO2
Timing
Generator
Decoding
Circuit
Control
Logic
Counter
PLA
Latch
Circuit
VCC
Right
Left
Backward
Forward
Turbo
F1
F2
Block Diagram of PT8A974P/974LP
OSCI
OSCO
SI
VI1
VI2
VT1
VT2
Oscillator
Amp
VO1
VO2
Timing
Generator
Decoding
Circuit
VT
Detector
Counter
PLA
Latch
Circuit
VCC
Right
Left
Backward
Forward
Turbo
F1
F2
F3
F4
Pin Configuration
PT8A9702P
16-Pin PDIP
Right
NC
GND
Backward
Forward
NC
SC
F3/F4
1
2
3
4
5
6
7
8
16 Left
15 F1
14 OSCI
13 OSCO
12 PC
11 V
CC
10 SO
9 F2
PT0097(11/02)
PT8A973P/973LP
18-Pin PDIP
VO2
GND
SI
OSCI
OSCO
F1
Right
F2
Left
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VI2
VO1
VI1
VCC
Turbo
Forward
Backward
LRTD
VT1
PT8A974P/974LP
20-Pin PDIP
VO2
GND
SI
OSCI
OSCO
F1
Right
F2
Left
VT1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VI2
VO1
VI1
VCC
Turbo
F4
Forward
F3
Backward
VT2
Top View
2 Ver:2


Part Number PT8A972
Description (PT8A972 - PT8A974) 8-Direction Remote Controller
Maker Pericom Technology
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PT8A972 Datasheet PDF






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