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Pericom Semiconductor Corporation

PT8A9781 Datasheet Preview

PT8A9781 Datasheet

(PT8A977B / PT8A9781) PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars

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Data Sheet
PT8A977B/9781 5-Function Remote
Controller for 1V Micro Cars
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Features
General Description
• PT8A977B works as encoder and PT8A9781
The PT8A977B and PT8A9781 provide a complete
works as decoder
control functions to the remote-controlled toy. The
• Four control functions
PT8A9781 has four output pins corresponding with
• Operating power-supply voltage: 1.8V to 5.0V(977B) the four actions i.e, forward, backward, right, left.
1.0V to 1.5V (9781)
The received signals are amplified by the three-stage
• Auto-power-off and oscillation-off if no press on
amplifier, and then the appropriate amplified signals
any button (977B)
are sampled, fault-tolerantly checked and decoded
• Press on any button to wake up (977B)
to control the actions of the remote-controlled toy.
• On-chip oscillator with an external resistor (977B)
• On-chip oscillator with an external resistor and
There is an internal oscillator in the PT8A9781. By
capacitor (9781)
adding an external resistor and capacitor conveniently,
• On-chip amplifiers (9781)
the oscillator will be constructed. The external resistor
• Low operating current
and capacitor can adjust the oscillator frequency. The
• Few external components needed
relative error between the frequencies of the two on-
chip oscillators in the PT8A977B and PT8A9781 must
Ordering Information
DataSheet4bUe .lceosms than ±25%.
DataShee
Part No.
Package
PT8A977BP
14-pin DIP
PT8A977BW
14-pin SOIC
PT8A977BDE
Die Form
PT8A9781W
16-pin SOIC
PT8A9781DE
Die Form
PT0118(02/04)
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Pericom Semiconductor Corporation

PT8A9781 Datasheet Preview

PT8A9781 Datasheet

(PT8A977B / PT8A9781) PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars

No Preview Available !

www.DataSheet4U.com
Data Sheet
PT8A977B/9781 5-Function Remote
Controller for 1V Micro Cars
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Block Diagram
Block Diagram of 977B
OSCI
OSCO
Oscillator
OFF
Timing
Generator
PC
Forward
Backward
Left
Right
Turbo
Input
Circuit
Encoding
Circuit
Output
Circuit
SO
SC
Block Diagram of 9781
et4U.com
OSCI
OSCO
SI
Oscillator
Timing
Generator
Latch
Amp SFiganualClt-hSTeaocmlkeprDlaena&ttaSheet4DUCe.cciroocdmuiintg
VI1 Amp
Voltage
Reference
VO1
VI2
Output
Circuit
Voltage
Booster
Amp
Right
Left
Backward
Forward
FOUT
VO2
VR
DataShee
Pin Configuration
PT8A977BP/977BW
14-Pin DIP/14-Pin SOIC
Right
Test
GND
Backward
Forward
Turbo
SC
1
2
3
4
5
6
7
14 Left
13 OFF
12 OSCI
11 OSCO
10 PC
9 VCC
8 SO
Top View
PT8A9781W
16-Pin SOIC
VO2
SI
GND
OSCI
OSCO
Left
FOUT
Forward
1
2
3
4
5
6
7
8
16 VI2
15 VR
14 VO1
13 VI1
12 VCC
11 NC
10 Right
9 Backward
PT0118(02/04)
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Part Number PT8A9781
Description (PT8A977B / PT8A9781) PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars
Maker Pericom Semiconductor Corporation
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PT8A9781 Datasheet PDF






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