Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features General Description • The PT8A990A works as the encoder and the The PT8A990A/991A is a pair of CMOS LSIs PT8A991A works as the decoder designed for remote controlled toy car application. • Nine output pins, 5 for forward, backward, left, They have nine control keys for controlling the right and turbo functions, and 4 functional keys corresponding motion (i.e. forward, backward, left, • Operation power supply: 3.0V to 5.5V right, turbo and 4 functional keys) of the remote • Auto power-off if no key pressed (PT8A990A) controlled car. They also have ‘Forward (Backward)’ • Low operating current and ‘Turbo’ combination application. • On-chip oscillator with an external resistor Ordering Information • On-chip receiving amplifiers • Few external components needed Block Diagram Pa r t Nu mb er Pa ck a ge PT8A990AP 18 - Pin PDIP PT8A991AP 24 - Pin PDIP Block Diagram of PT8A990A f0/2 OSCI OSCO Forward Backward Left Right Turbo F1 F2 F3 F4 Oscillator f0 Timing Generator Latch Circuit SC SO MUX Logic Control PC Counters PT0095(06/02) 1 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram of PT8A991A ON/OFF OSCI OSCO Oscillator SI Amp VI1 VO1 VI2 VO2 PC Timing Generator Counter Decoding Circuit PLA Latch Circuit VT Detector VT Right Left Backward Forward Turbo F1 F2 F3 F4 LRTD Package and Pin Assignment PT8A990AP 18-Pin PDIP Right NC GND Backward Forward Turbo SC NC F4 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 PT8A991AP 22-Pin PDIP VO2 GND SI OSCI OSCO F1 Right F2 Left PC ON/OFF Left F1 OSCI OSCO PC VCC SO F2 F3 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 VI2 VO1 VI1 VCC Turbo Forward Backward LRTD VT F4 F3 Top View PT0095(06/02) 2 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Pin Description of PT8A990AP P in Na me Typ e 1 Right I Rightward function selected if this pin connected to GND 2 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 6 Turbo I Turbo function selected if this pin connected to GND 7 SC O Output pin of the encoding signal with carrier freqency 8 NC 9 F4 I Function 4 selected if connected to GND 10 F3 I Function 3 selected if connected to GND 11 F2 I Function 2 selected if connected to GND 12 SO O Output pin of the encoding signal without carrier freqency 13 VCC P Power supply 14 PC O Power control output pin 15 OSCO O Oscillator output pin 16 OSCI I Oscillator input pin 17 F1 I Function 1 selected if connected to GND 18 Left I Leftward function selected if this pin connected to GND PT0095(06/02) Descr ip t ion Ground No Connection 3 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description of PT8A991AP P in Na me Typ e 1, 21 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 PC O Power control pin 11 ON/OFF I ON/OFF pin 12 F3 O F3 function output pin 13 F4 O F4 function output pin 14 VT I Auto shut-off input pin: If voltage on VT pin is over 0.095VCC for 3 sec, all outputs will be shut off automatically. 15 LRTD I Left/Right turbo disable pin. 16 Backward O Backward output pin 17 Forward O Forward output pin 18 Turbo O Turbo output pin 19 VCC P Power supply 20,22 VI1,VI2 I Input pins of invertor 1 and 2 for signal amplifier PT0095(06/02) Descr ip t ion Output pins of inverter 1 and 2 for Signal amplifier Ground 4 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Storage Temperature ........................................................ -25oC to +85oC Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ......................... 0oC to +70oC RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & VCC Only) .... -0.5 to +5.5V device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +5.5V operation of the device at these or any other condiDC Input Voltage ................................................................ -0.5 to +5.5V tions above those indicated in the operational secDC Output Current ........................................................................ 20mA tions of this specification is not implied. Exposure Power Dissipation ....................................................................... 500mW to absolute maximum rating conditions for extended periods may affect reliability. Recommended Operating Conditions Sym Descr ip t ion VCC Test C on d it ion s Min Typ Ma x Un it s Supply Voltage 3 4 5 V VIH Input HIGH Voltage 0.7VCC 4 - V VIL Input LOW Voltage - 0 0.3VCC V FOSC Oscillator Frequency 109 128 146 kHz TA Operation Temperature 0 - 70 Min Typ Ma x Un it s O C DC Electrical Characteristics DC Electrical Characteristics of PT8A990A Sym Descr ip t ion Test C on d it ion s O ISTB Stand-by Current TA = 70 C, Off State 2 uA ICC Supply Current Output Unloaded 300 uA Output HIGH Current - PC and SO Pins IOH IOL Output HIGH Currentl - SC Pin VOH = 3.5V, TA = 25OC IIL -2 mA -3 -4 mA Output HIGH Current - OSCO Pin -400 Output LOW Current PC and SO Pins 1 4 mA 1.5 5 mA Output LOW Currentl - SC Pin VOL = 0.5V, TA = 25OC Output LOW Current OSCO Pin IIH -1 uA 400 Input HIGH Current - Forward, Backward, Left, Right, Turbo, F1, F2, F3, F4, NC, OSCI Pins VCC = 5.5V, VIH = VCC, TA = 25OC Input LOW Current Forward, Backward, Left, Right, Turbo, F1, F2, F3, F4, NC Pins VCC = 5.5V, VIL = 0V, TA = 25OC Input LOW Current - OSCI Pin uA 10 -10 -25 -100 -1 -10 uA uA Note: These specifications apply for VCC = 4.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified. PT0095(06/02) 5 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Electrical Characteristics of PT8A991A Sym Descr ip t ion Test C on d it ion s ISTB Stand-by Current ICC Supply Current Ma x Un it s Off State 20 uA Output Unloaded 700 uA Output HIGH Current VO1, VO2 and OSCO Pins IOH IOL IIH Output HIGH Current Forward, Backward, Left and Right Pins Min Typ -300 uA -2 -5 Output HIGH Current Turbo, F1, F2, F3 and F4 Pins -2 -5 Output HIGH Current - PC Pin -2 -3 Output LOW Current VO1, VO2 and OSCO Pins 150 Output LOW Current Forward, Backward, Left and Right Pins VOH = 3.5V, TA = 25OC mA uA 1 3 Output LOW Current Turbo, F1, F2, F3 and F4 Pins 1 3 Output LOW Current - PC Pin 2 Input HIGH Current - VT Pin 20 Input HIGH Current - SI, VI1, VI2, LRTD, ON/OFF and OSCI Pins VOL = 0.5V, TA = 25OC mA 30 VI = VCC, TA = 25OC uA 10 Input LOW Current - SI, VI1, VI2, VT and OSCI Pins IIL VT 100 -10 O Input LOW Current ON/OFF and LRTD Pins Over-Current Limit - VT Pin VI = 0V, TA = 25 C uA -20 Forward is high. -30 0.35 -100 0.45 V Note: These specifications apply for VCC = 4.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified. PT0095(06/02) 6 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics AC Electrical Characteristics of PT8A990A Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s fOSC (Note2) Oscillator Frequency TA=25 C, Rf = 180kΩ 109 128 146 kHz tFUN Period of Function Code fOSC = 128kHz, TA = 25oC 1.7 2 2.3 ms fCSC Carrier Frequency fOSC = 128kHz, TA = 25oC 64 kHz Note: 1. These specifications apply for VCC = 4.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified. 2.The frequency of standard samples is tested on standard testing-board. AC Electrical Characteristics of PT8A991A Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s fOSC (Note2) Oscillator Frequency TA=25 C, Rf = 180kΩ 109 128 146 kHz tFUN Period of Function Code fOSC = 128kHz, TA = 25oC 1.7 2 2.3 ms Note: 1.These specifications apply for VCC = 4.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified. 2.The frequency of standard samples is tested on standard testing-board. PT0095(06/02) 7 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Typical Application Circuit of PT8A990A 9V PT8A990A 1 2 3 4 5 6 7 8 9 Right 18 Left NC GND 16 OSCI Backward OSCO Forward PC Turbo F2 F4 F3 R2 14 180K R9 330 R11 D 2 4.3V 1K R8 2.2M C1 47U/16V 12 SO NC 15 13 Vcc SC R10 3.9K 17 F1 11 C2 10 R5 6.8K 0.1U D1 1N4148 R3 120K CRYSTAL 27M Q1 9014H R4 L1 100 22U C3 47P C4 47P C5 R6 33K 0.02U C6 47P L2 R7 100 C7 Q2 9014H 22U C8 47P 0.02U C9 100P L3 C10 10P A PT0095(06/02) 8 Ver:0 Data Sheet PT8A990A/991A 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| R20 330 Rs R22 1K Q17 8050 Q14 8550 Q6 9013 Q15 8050 Q16 8550 M2 MOTOR2 R16 1K Q12 9013 Q10 882 R23 100 R21 1K Q8 882 R11 C16 1000U 180 14 15 16 R15 1K 17 18 19 C12 470 21 22 F4 PC VT1 LRTD/VT2 Backward Forward Right F1 OSCo Vcc OSCi VI1 SI VO1 GND VI2 VO2 R7 2.2M 10 9 8 7 6 5 4 3 2 1 C14 30 C13 .1u F2 11 C5 473 R2 100k L2 PT0095(06/02) 9 332 C3 L1 6.8 R1 1k C2 68 C4 4.7u C1 10 A1 Q1 9014 C6 47 R3 3.9K R6 2.2K Left Turbo R4 2.2K .1u R5 2.2M C11 20 ON/OFF C15 1000 13 F3 R9 180K R19 330 12 R8 2.2K Q5 9013 R17 100 R25 330 R18 100 Q9 772 M1 MOTOR1 Q7 772 D1 1N4148 Z5.1V R31 220 PT8A991AP R30 C9 C10 10u 3.6K .01u R26 330 Q13 9013 R25 10/1W S1 R24 100 B1 12V Typical Application Circuit of PT8A991A Ver:0 Data Sheet PT8A990A/991A 9-Function 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. PT0095(06/02) 10 Ver:0