Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features • Few external components needed • Pin to pin compatible with TX6/RX6 • The PT8A9702 works as the encoder and the General Description PT8A973/974/973L/974L works as the decoder • 8-direction control The PT8A9702P works as encoder, it can provide 8- • Operation power supply for PT8A9702: 3V to 12V direction remote control for toy car application with (with series resistor) PT8A973/973L/PT8A974/974L together. Input 8- • Auto power-off if no key pressed (PT8A9702) direction named F, FL, L, BL, BR, R, FR, and B they • Motor current limit to meet toy safety standard are combined with F, L, B, and R four signals. In HD271 (PT8A973/974/973L/974L) decoder side, use output signal Left & Right to drive • Low operating current Right Motor, and use For & Back to drive Left Motor. • On-chip oscillator with an external resistor Their detail relations please see truth table. • On-chip reversing amplifiers • Built-in 3.8V Zener (9702), 3.7V Zener (Vz) (973/974) and 3.1V Zener (Vz) (973L/974L) Ordering Information Device Na me E n cod er Part No. PT8A9702P Package 16-pin PDIP Decod er PT8A973P PT8A973LP PT8A974P 18-pin PDIP PT8A974LP 20-pin PDIP Block Diagram Block Diagram of PT8A9702 f0/2 OSCI OSCO Forward Backward Left Right F1 F2 F3/F4 Oscillator f0 Timing Generator Latch Circuit SC SO MUX Logic Control VCC PC Counters PT0097(11/02) 1 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram of PT8A973/973L OSCI OSCO SI Oscillator Amp VI1 VO1 VI2 VO2 LRTD Timing Generator Counter Decoding Circuit PLA Right Left Backward Forward Turbo F1 F2 Latch Circuit Control Logic VT1 VCC Block Diagram of PT8A974P/974LP OSCI OSCO Oscillator SI Amp VI1 VO1 VI2 VO2 Timing Generator Counter Decoding Circuit PLA Right Left Backward Forward Turbo F1 F2 F3 F4 Latch Circuit VT1 VT Detector VT2 VCC Pin Configuration PT8A9702P 16-Pin PDIP Right NC GND Backward Forward NC SC F3/F4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PT8A974P/974LP 20-Pin PDIP PT8A973P/973LP 18-Pin PDIP Left F1 OSCI OSCO PC VCC SO F2 VO2 GND SI OSCI OSCO F1 Right F2 Left 18 17 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 9 VI2 VO1 VI1 VCC Turbo Forward Backward LRTD VT1 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 PT0097(11/02) 2 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Pin Description of PT8A9702 P in No P in /Pa d Na me Typ e Descr ip t ion 1 Right I Rightward function selected if this pin connected to GND 2, 6 NC - No connection 3 GND GND 4 Backward I Backward function selected if this pin connected to GND 5 Forward I Forward function selected if this pin connected to GND 7 SC O Output pin of the encoding signal with carrier freqency 8 F3/F4 I Able to toggle between Function 3 and Function 4 if connected to GND 9 F2 I Function 2 selected if connected to GND 10 SO O Output pin of the encoding signal without carrier freqency 11 VCC P Power supply 12 PC O Power control output pin 13 OSCO O Oscillator output pin 14 OSCI I Oscillator input pin 15 F1 I Function 1 selected if connected to GND 16 Left I Leftward function selected if this pin connected to GND Ground Truth Table Forward 0 0 1 1 1 1 1 0 Input of 9702 Backw ard Right 1 1 1 1 1 1 0 1 0 1 0 0 1 0 1 0 Left 1 0 0 0 1 1 1 1 O utput of 973/973L/974/974L Forward Backw ard Right Left H L H L L L H L L H H L L L L H L H L H L H L L H L L H H L L L Left M otor Right M otor * N ote: 0 -- active, 1 -- inactive. PT0097(11/02) 3 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description of PT8A973/973L P in No P in /Pa d Na me Typ e 1, 17 VO2, VO1 O 2 GND GND 3 SI I Input pin for encoded signal 4 OSCI I Oscillator input pin 5 OSCO O Oscillator output pin 6 F1 O F1 function output pin 7 Right O Rightward output pin 8 F2 O F2 function output pin 9 Left O Leftward output pin 10 VT1 I Auto shut-off input pin: If voltage on VT1 pin is over 0.095VCC for 3 sec, all outputs will be shut off automatically. 11 LRTD I Left/Right turbo disable pin 12 Backward O Backward output pin 13 Forward O Forward output pin 14 Turbo O Turbo output pin 15 VCC P Power supply 16, 18 VI1,VI2 I Input pins of amplifiers 1 and 2 PT0097(11/02) Descr ip t ion Output pins of amplifiers 1 and 2 Ground 4 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description of PT8A974P/974LP P in No P in Na me Typ e 1, 19 VO2, VO1 O 2 GND GND 3 SI I Input pin for encoded signal 4 OSCI I Oscillator input pin 5 OSCO O Oscillator output pin 6 F1 O F1 function output pin 7 Right O Rightward output pin 8 F2 O F2 function output pin 9 Left O Leftward output pin 10 VT1 I Auto shut-off input pin: If voltage on VT1 pin is over 0.095VCC for 3 sec, all outputs will be shut off automatically. 11 VT2 I Auto shut-off input pin: If voltage on VT2 pin is over 0.095VCC for 3 sec, all outputs will be shut off automatically. 12 Backward O Backward output pin 13 F3 O F3 function output pin 14 Forward O Forward output pin 15 F4 O F4 function output pin 16 Turbo O Turbo output pin 17 VCC P Power supply 18, 20 VI1,VI2 I Input pins of amplifiers 1 and 2 PT0097(11/02) Descr ip t ion Output pins of amplifiers 1 and 2 Ground 5 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Maximum Ratings PT8A9702 Storage Temperature ....................................................................................................................................... -25oC to +85oC Ambient Temperature with Power Applied ........................................................................................................ 0oC to +70oC Supply Voltage to Ground Potential (Inputs & VCC Only) ................................................................................... -0.5 to +5.5V 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 ....................................................................................................................................................... 20mA Power Dissipation ...................................................................................................................................................... 500mW Maximum Ratings PT8A973/974 Storage Temperature ....................................................................................................................................... -25oC to +85oC Ambient Temperature with Power Applied ........................................................................................................ 0oC to +70oC Supply Voltage to Ground Potential (Inputs & VCC Only) ................................................................................... -0.5 to +5.5V 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 ....................................................................................................................................................... 30mA Power Dissipation ...................................................................................................................................................... 500mW Maximum Ratings PT8A973L/974L Storage Temperature ....................................................................................................................................... -25oC to +85oC Ambient Temperature with Power Applied ........................................................................................................ 0oC to +70oC Supply Voltage to Ground Potential (Inputs & VCC Only) ................................................................................... -0.5 to +5.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ............................................................................... -0.5 to +5.0V DC Input Voltage ............................................................................................................................................... -0.5 to +5.0V DC Output Current ....................................................................................................................................................... 30mA Power Dissipation ...................................................................................................................................................... 500mW Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. PT0097(11/02) 6 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Recommended Operating Conditions Recommended Operating Conditions Sym ICC Descr ip t ion Min Ma x Un it s Supply Current for PT8A973/974 30 mA Supply Current for PT8A973L/974L 30 mA VIH Input HIGH Voltage VIL Input LOW Voltage FOSC Oscillator Frequency 109 TA Operation Temperature 0 Typ 0.7VCC V 0 0.3VCC V 128 146 kHz O 70 C DC Electrical Characteristics DC Electrical Characteristics of PT8A9702 Sym Descr ip t ion Test C on d it ion s ICC Supply Current Output Unloaded VZ Voltage of Zenner IZ = 2~30mA Output HIGH Current - PC Pin IOH IOL Output HIGH Currentl SC and SO Pins VOH = VCC-0.5V IIL Typ Ma x Un it s 30 mA 4.0 V 3.4 3.7 -3 -5 mA -3 -5 mA Output HIGH Current OSCO Pin -200 Output LOW Current - PC Pin 2 3 mA 2 3 mA Output LOW Currentl SC and SO Pins VOL = 0.5V Output LOW Current OSCO Pin IIH Min Input HIGH Current Forward, Backward, Left, Right, F1, F2, F3/F4 and OSCI Pins Input LOW Current Forward, Backward, Left, Right, F1, F2 and F3/F4 Pins -1000 200 VIH = VCC -20 -40 uA 1000 uA 1 uA -100 uA -10 uA VIL = 0V Input LOW Current - OSCI Pin Note: These specifications apply for VCC = 3.5V and TA = 25OC, unless otherwise specified. PT0097(11/02) 7 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Electrical Characteristics of PT8A973/973L/974/974L Sym Descr ip t ion Test C on d it ion s ICC Supply Current Output Unloaded Output HIGH Current VO1, VO2 and OSCO Pins IOH IOL Output HIGH Current Forward, Backward, Left and Right Pins VOH = VCC-0.5V IIL Un it s 30 mA 800 uA mA -3 Output LOW Current VO1, VO2 and OSCO Pins 200 Input HIGH Current - OSCI, VI1, VI2 ,LRTD and SI Pins Ma x -3 Output HIGH Current Turbo, F1 and F2 Pins Output LOW Current Forward, Backward, Left, Right and Turbo Pins Typ 300 VOL = 0.5V 2 1000 uA 3 mA Output LOW Current F1 and F2 Pins IIH Min 2 3 10 uA Input HIGH Current -VT1 50 uA Input LOW Current - OSCI, VT1, VI1, VI2 and SI Pins -10 uA -50 uA Input LOW Current - LRTD Pins VIN = VCC VIN = 0V Over-Current Limit VT1 Pins for PT8A973/974 0.30 0.40 V Over-Current Limit VT1 Pins for PT8A973L/974L 0.25 0.35 V Voltage of Zenner PT8A973/974 3.4 3.7 4 V 2.8 3.1 3.4 V VT VZ Voltage of Zenner PT8A973L/974L IZ = 2~30mA Note: These specifications apply for TA = 25°C,VCC = 3.5V (973/974), VCC = 3.0V (973L/974L),unless otherwise specified. PT0097(11/02) 8 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics AC Electrical Characteristics of PT8A9702 Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s fOSC (Note2) Oscillator Frequency Rf = 200kΩ 109 128 146 kHz tFUN Period of Function Code fOSC = 128kHz 1.7 2 2.3 ms tSTA Start-Code Period fOSC = 128kHz 1.7 2 2.3 ms fCSC Carrier Frequency fOSC = 128kHz 64 kHz Note: 1. These specifications apply for VCC = 3.5V and TA = 25OC, unless otherwise specified. 2.The frequency of standard samples is tested on standard testing-board. AC Electrical Characteristics of PT8A973/973L/974/974L Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s fOSC (Note2) Oscillator Frequency Rf = 200kΩ 109 128 146 kHz tFUN Period of Function Code fOSC = 128kHz 1.7 2 2.3 ms tSTA Start-Code Period fOSC = 128kHz 1.7 2 2.3 ms Notes: 1. These specifications apply for TA = 25°C, VCC = 3.5V (973/974), VCC = 3.0V (973L/974L),unless otherwise specified. 2. The frequency of standard samples is tested on standard testing-board. PT0097(11/02) 9 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 10P 47P LED1 27M R6 1K R2 56K Q2 9014H R3 100 C3 CRYSTAL1 L1 22U C10 0.1U C2 47P R4 15k C4 47P R5 100 Q1 9014H L2 22U C7 0.02u C5 47P C6 0.02U L3 C8 100P C9 Typical Application Circuit of PT8A9702 K2 PT8A9702 9 10 11 12 R1 200k 13 K1 14 15 F3/F4 SO SC Vcc NC PC Forward O S C O Backward OSCI GND NC F1 Left Right 8 7 6 5 4 3 2 1 Left For Back SW1 Right C1 0.1U R7 * 16 F2 PT0097(11/02) 10 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| R17 10K Q17 H1815 Q20 D882 Q6 8050 104 Q4 8050 R14 10K R19 1K R2 330 2.2K R6 18 Turbo F1 OSCO Vcc OSCI VI1 SI VO1 GND VI2 VO2 7 6 R8 C11 200K 222 Forward Right 8 5 4 3 2 2.2K R10 2.2M C9 470P 17 C8 104 R4 820 16 Backward F2 9 1 PT8A973 C4 472 L1 4.7uH 15 C7 104 R9 2.2k C2 103 R12 Q1 C380 C5 47P 180K C6 4.7uF 7T C1 5P L2 C3 47P 14 LRTD Left R5 13 VT R11 2.2M R7 3.3k 12 ANTENNA R13 10K Q8 R16 10K 1K R21 11 27MHz Q7 H1815 Q3 8550 Q14 D882 104 Q12 H1815 R25 220 C10 104 Q5 M3 8550 Q10 D882 Q9 B772 Q13 B772 M1 330 C12 220uF R1 10 PT0097(11/02) H1815 Q11 H1815 R3 330 R15 10K R28 220 R22 1K R20 1K R23 1K R26 220 R18 10K Q18 H1815 104 Q16 D882 Q15 Q19 B772 M2 B772 R27 220 R24 1K B1 6V SW Typical Application Circuit of PT8A973 11 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| R17 10K Q17 H1815 Q20 D882 C9 R10 470P 2.2M 18 19 F3 F2 Forward F4 Right F1 Turbo OSCO Vcc OSCI VI1 SI VO1 GND VI2 VO2 Q6 8050 104 Q4 8050 R14 10K 9 8 7 6 R8 C11 200K 222 Left 5 4 3 2 1 R11 2.2M 2.2K PT8A974 C8 104 R6 20 Backward 10 2.2K C7 104 R9 2.2k C2 103 R12 17 VT1 C4 472 L1 4.7uH R4 820 Q1 C380 180K C6 4.7uF 7T C1 5P L2 C3 47P 16 C5 47P R19 1K R2 330 15 VT2 R5 R7 3.3k 14 ANTENNA R13 10K Q8 R16 10K 1K R21 13 27MHz Q7 H1815 Q3 8550 Q14 D882 104 Q12 H1815 R25 220 C10 104 Q5 M3 8550 Q10 D882 Q9 B772 Q13 B772 M1 330 C12 220uF R1 11 12 PT0097(11/02) H1815 Q11 H1815 R3 330 R15 10K R28 220 R22 1K R20 1K R23 1K R26 220 R18 10K Q18 H1815 104 Q19 B772 M2 Q16 D882 Q15 B772 R27 220 R24 1K B1 6V SW Typical Application Circuit of PT8A974P 12 Ver:2 Data Sheet PT8A9702/973/973L/974/974L 8-Direction Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Notes Pericom Technology Inc. Email: [email protected] Web Site: www.pti.com.cn, www.pti-ic.com China: No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Fax: (86)-21-6485 2181 Asia Pacific: Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 Fax: (852)- 2243 3667 U.S.A.: 2380 Bering Drive, San Jose, California 95131, USA Tel: (1)-408-435 0800 Fax: (1)-408-435 1100 Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom Technology product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom Technology Incorporation. PT0097(11/02) 13 Ver:2