PT8A9701P Pericom Semiconductor, PT8A9701P Datasheet

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PT8A9701P

Manufacturer Part Number
PT8A9701P
Description
Manufacturer
Pericom Semiconductor
Datasheet
PT0090(09/02)
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Features
• The PT8A9701P works as the encoder and the
• Nine output pins, 5 for forward, backward, left,
• Operation power supply for PT8A9701: 3V to 12V
• Auto power-off if no key pressed (PT8A9701P)
• Motor current limit to meet toy safety standard
• Low operating current
• On-chip oscillator with an external resistor
• On-chip reversing amplifiers
• Built-in 3.7V Zener (Vz) (PT8A974P) and 3.1V
• Few external components needed
Block Diagram
Figure 1. Block Diagram of PT8A9701P
PT8A974P/974LP works as the decoder
right and turbo functions, and 3 functional keys
(with series resistor)
HD271 (PT8A974P/974LP)
Zener (Vz) (PT8A974LP)
Backward
Forward
OSCO
Turbo
F3/F4
OSCI
Right
Left
F1
F2
Oscillator
Circuit
Latch
Counters
Generator
1
Control
Timing
Logic
General Description
The PT8A9701P and PT8A974P/974LP is a pair of
CMOS LSIs designed for remote controlled toy car
application. They have eight control keys for
controlling the corresponding motion, i.e., forward,
backward, left, right, turbo and 3 functional keys, of
the remote controlled car. They also have ‘Forward
(Backward)’ and ‘Turbo’ combination application.
Ordering Information
P
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8-Function Remote Controller
6
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PT8A9701P/974P/974LP
D
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P I
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PC
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9
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Data Sheet
SC
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CC
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Ver:2
P

Related parts for PT8A9701P

PT8A9701P Summary of contents

Page 1

... Features • The PT8A9701P works as the encoder and the PT8A974P/974LP works as the decoder • Nine output pins, 5 for forward, backward, left, right and turbo functions, and 3 functional keys • Operation power supply for PT8A9701 12V (with series resistor) • Auto power-off if no key pressed (PT8A9701P) • ...

Page 2

... GND OSCI OSCI 13 OSCO OSCO Right Left VT1 Top View 2 Data Sheet PT8A9701P/974P/974LP 8-Function Remote Controller Counter PLA Right Left Backward Forward Latch Turbo Circuit 20-Pin PDIP 20 VI2 1 19 VO1 VI1 17 4 ...

Page 3

... Pin Description Table 1. Pin Description of PT8A9701P ...

Page 4

... Data Sheet PT8A9701P/974P/974LP 8-Function Remote Controller ...

Page 5

... Frequency: 500Hz, Duty Cycle: 3/4 Frequency: 500Hz, Duty Cycle: 1/4 5 Data Sheet PT8A9701P/974P/974LP B = Backward T = Turbo L = Left F1= Function Function Function4 ...

Page 6

... Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Maximum Ratings PT8A9701P Storage Temperature ....................................................................................................................................... -25 Ambient Temperature with Power Applied ........................................................................................................ 0 Supply Voltage to Ground Potential (Inputs & V Supply Voltage to Ground Potential (Outputs & D/O Only) ............................................................................... -0.5 to +5.5V DC Input Voltage ............................................................................................................................................... -0.5 to +5.5V DC Output Current ...

Page 7

... Electrical Characteristics Table 5. DC Electrical Characteristics of PT8A9701P ...

Page 8

... 25° 3.5V (974P 3.0V (974LP), unless otherwise specified Data Sheet PT8A9701P/974P/974LP 8-Function Remote Controller ...

Page 9

... AC Electrical Characteristics Table 7. AC Electrical Characteristics of PT8A9701P ...

Page 10

... Figure 5. Typical Application Circuit of PT8A9701P PT0090(09/02) 8-Function Remote Controller ...

Page 11

ANTENNA C5 C1 47P 3.3k C380 4.7uH 47P R12 180K 820 472 103 4.7uF 2.2k C7 104 C9 R10 470P 2. 2.2K 104 R11 2.2M ...

Page 12

... Pericom Technology product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom Technology Incorporation. PT0090(09/02) 8-Function Remote Controller Notes Pericom Technology Inc. Web Site: www.pti.com.cn, www.pti-ic.com Fax: (86)-21-6485 2181 Fax: (852)- 2243 3667 Fax: (1)-408-435 1100 12 Data Sheet PT8A9701P/974P/974LP Ver:2 ...

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