Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features General Description • The PT8A990P works as the encoder and the The PT8A990P/991P is a pair of CMOS LSIs designed PT8A991P works as the decoder for remote controlled toy car application. They have nine • Nine output pins, 5 for forward, backward, left, control keys for controlling the corresponding motion (i.e. right and turbo functions, and 4 functional keys forward, backward, left, right, turbo and 4 functional keys) • Operation power supply: 3.0V to 5.5V of the remote controlled car. They also have ‘Forward • Auto power-off if no key pressed within 2s (Backward)’ and ‘Turbo’ combination application. (PT8A990P) • Auto shut-down if keep pressing a key for more than 4 minutes (PT8A990P) • Auto shut down if no signal input for more than 5 minutes (PT8A991P) • Low operating current • On-chip oscillator with an external resistor • On-chip receiving amplifiers • Few external components needed Block Diagram Figure 1. Block Diagram of PT8A990P f0/2 TDIS OSCI OSCO Forward Backward Left Right Turbo F1 F2 F3 F4 Oscillator f0 Timing Generator Latch Circuit SC SO MUX Logic Control PC Counters PT0053(15/03/01) 1 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Figure 2. Block Diagram of PT8A991P ON/OFF OSCI OSCO Oscillator SI Amp VI1 VO1 VI2 VO2 VT1 PC Timing Generator Counter Decoding Circuit PLA Latch Circuit VT Detector VT2 Right Left Backward Forward Turbo F1 F2 F3 F4 LRTD Package and Pin Assignment PT8A990P 18-Pin PDIP Right TDIS 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 PT8A991P 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 VT2/LRTD VT1 F4 F3 Top View PT0053(15/03/01) 2 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Table 1. Pin Description of PT8A990P P in Na me Typ e 1 Right I Rightward function selected if this pin connected to GND 2 TDIS I For timer enable: opened or connected to VCC, For timer disenable: connected to GND, For test mode: connected to 1/2 VCC 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 PT0053(15/03/01) Descr ip t ion Ground No Connection 3 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Table 2. Pin Description of PT8A991P 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 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. 15 LRTD/VT2 I Left/Right turbo disable pin. Optional for the 2nd Auto Shut-Off input 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 PT0053(15/03/01) Descr ip t ion Output pins of inverter 1 and 2 for Signal amplifier Ground 4 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Functional Description Data Format In normal operation without ‘Turbo’, forward (backward) output pin of the decoder PT8A991P sends out a 60Hz signal. In operation with ‘Forward (Backward)’ and ‘Turbo’ combined, the output signal will be completely high. This function is depicted as follows. See Figure 4. Coding Method Each trigger pin is triggered by corresponding bit of data in format of “1”. The data string is 18-bit and divided to four segments, i.e., Start Code, Data Code, Parity Code and End code, where Start Code = 11110. Data Code = F3 F4 F B T R L F1 N1 N2 F2 Once a key is pressed, the PT8A990P is powered on, and the PC output pin keeps on a high level. If no key pressed, The PT8A990P will shut off automatically in 2s and nothing is output on the PC pin. It can save battery power by shutting down the device after pressing on any key for 4 minutes. The PC pin is used to control on/off of the external power supply. F = Forward R = Right F2 = Function 2 The PT8A991P has Auto Power Down feature when no signal received within 5 minutes. The VT pins are used for Current Limit Protection to meet HD271 Toys safety standard. There are two over- current-protection pins in PT8A991P. If the input voltage is over 0.095VCC for 3 seconds, the output level will be off. The LRTD/VT2 is optional. B = Backward L = Left F3 = Function 3 N1, N2 = Reserved T = Turbo F1= Function 1 F4 = Function 4 Parity Code = Even parity check result End Code is for data latch. Data code can be any combination of F, B, T, R, L, F1, F2, F3 and F4 except F&B, R&L, N1 and N2. Figure 4. Data Format "1" Frequency: 500Hz, Duty Cycle: 3/4 "0" Frequency: 500Hz, Duty Cycle: 1/4 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. PT0053(15/03/01) 5 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Recommended Operating Conditions Table 3. 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 1 3 uA O C DC Electrical Characteristics Table 4. DC Electrical Characteristics of PT8A990P Sym Descr ip t ion Test C on d it ion s ISTB Stand-by Current TA = 70OC, Off State Output HIGH Current - PC and SO Pins IOH IOL Output HIGH Currentl - SC Pin VOH = 3.5V, TA = 25OC IIL 3 mA 4 5 mA Output HIGH Current - OSCO Pin 220 Output LOW Current PC and SO Pins 2 4 mA 4 5 mA Output LOW Currentl - SC Pin VOL = 0.5V, TA = 25OC Output LOW Current OSCO Pin IIH 2 Input HIGH Current Forward, Backward, Left, Right, Turbo, F1, F2, F3, F4, NC, OSCI and TDIS Pins Input LOW Current Forward, Backward, Left, Right, Turbo, F1, F2, F3, F4, NC and TDIS Pins 600 220 600 uA 1 10 uA 25 100 VCC = 5.5V, VIH = VCC, TA = 25OC VCC = 5.5V, VIL = 0V, TA = 25OC 10 uA Input LOW Current - OSCI Pin uA 1 10 Note: These specifications apply for VCC = 4.0V and 0OC £ TA £ 70OC, unless otherwise specified. PT0053(15/03/01) 6 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Table 5. DC Electrical Characteristics of PT8A991P Sym Descr ip t ion Test C on d it ion s ISTB Stand-by Current Off State Output HIGH Current VO1, VO2 and OSCO Pins Output HIGH Current Forward, Backward, Left and Right Pins Min Typ Ma x Un it s 3 5 uA 850 uA 300 6 10 Output HIGH Current Turbo, F1, F2, F3 and F4 Pins 3 6 Output HIGH Current - PC Pin 2 5 Output LOW Current VO1, VO2 and OSCO Pins 300 IOH Output LOW Current Forward, Backward, Left and Right Pins VOH = 3.5V, TA = 25OC mA 850 3 5 Output LOW Current Turbo, F1, F2, F3 and F4 Pins 6 11 Output LOW Current - PC Pin 2 9 Input HIGH Current - VT1 Pin 20 30 100 1 10 1 10 IOL IIH Input HIGH Current - SI, VI1, VI2, VT2, ON/OFF and OSCI Pins VOL = 0.5V, TA = 25OC mA VI = VCC, TA = 25OC, On state uA Input LOW Current - SI, VI1, VI2, VT1 and OSCI Pins IIL O Input LOW Current ON/OFF and VT2 Pins uA VI = 0V, TA = 25 C, On state uA 15 30 100 IDR Pull-Down Resistor Current VI1 and VI2 Pins VI = 4.0V, Off State 100 290 uA IUR Pull-Up Resistor Current SI Pin VI = 0V, Off State 20 100 uA VOH Output HIGH Voltage VO1 and VO2 Pins VI1, VI2 = 1.5V 3.5 VOL Output LOW Voltage VO1 and VO2 Pins VI1, VI2 = 2.5V VT Over-Current Limit VT1 and VT2 Pins Forward is high. 0.35 V 0.5 V 0.45 V Note: These specifications apply for VCC = 4.0V and 0OC £ TA £ 70OC, unless otherwise specified. PT0053(15/03/01) 7 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics Table 6. AC Electrical Characteristics of PT8A990P 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 = 200kΩ 109 128 146 kHz tFUN Period of Function Code fOSC = 128kHz, TA = 25oC 1.7 2 2.3 ms tSTA Start-Code Period fOSC = 128kHz, TA = 25oC 1.7 2 2.3 ms fCSC Carrier Frequency fOSC = 128kHz, TA = 25oC 64 kHz tOFF Auto-off Time fOSC = 128kHz, TA = 25oC 2 s VCC Power Supply Range - ICC Supply Current Output Unloaded 3 4 5.5 V 300 uA 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. Table 7. AC Electrical Characteristics of PT8A991P 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 = 200kΩ 109 128 146 kHz tFUN Period of Function Code fOSC = 128kHz, TA = 25oC 1.7 2 2.3 ms tSTA Start-Code Period fOSC = 128kHz, TA = 25oC 1.7 2 2.3 ms tOFF Auto-off Time fOSC = 128kHz, TA = 25oC VCC Power Supply Range - 5 3 4 minute 5.5 V 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. PT0053(15/03/01) 8 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 4.3V D2 R7 100 C3 47P 47P 27M R4 100 6.8K R11 1K C1 0.1U PT8A990P R2 200K 10 F3 F4 9 11 F2 NC 12 SO SC 13 VC C 14 PC 15 O SCO B ack w ard 16 O SCI GND 3 17 F1 G D IS 2 18 L eft R ig h t 1 8 7 Tu rb o 6 F o rw ard 5 4 9V 3.9K R10 330 R9 2.2M R8 47U/16V C2 R5 1N4148 D1 R3 120K L1 22U Q1 9014H C4 CRYSTAL R6 33K C5 0.02U C6 47P L2 22U C8 47P Q2 9014H C7 0.02U L3 C9 100P C10 10P A Figure 5. Typical Application Circuit of PT8A990P PT0053(15/03/01) 9 Ver:2 Data Sheet PT8A990P/991P 9-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 330 R22 1K R25 330 Q 15 8050 Q 12 9013 R23 100 R15 1K 17 18 19 C12 470 2.2M 21 22 PC 10 L e ft 9 V T1 L R TD B a ck w a rd F o rw a rd F2 Rig h t F1 8 7 6 5 Tu rb o O SCO VC C O SCI 4 SI 3 VO 1 GND 2 V I2 VO 2 1 V I1 R7 2.2M C14 30 C13 .1u C5 473 100k R2 L2 PT0053(15/03/01) 10 332 C3 L1 6.8 R1 1k C2 68 C4 4.7u C1 10 A1 Q1 9014 C6 47 R3 3.9K R6 2.2K R21 F4 2.2K R4 R5 .1u C11 20 11 R9 200K C16 100u 16 O N /O FF C15 1000 180 15 F3 R8 2.2K 330 R19 13 1K Q8 882 Q5 9013 R17 100 12 14 R11 Q 17 8050 Q 16 8550 M2 MOTOR2 Q 14 8550 Rs Q 10 882 M1 MOTOR1 Q9 772 Q7 772 D1 1N4148 220 Z5.1V R31 PT 8 A 9 9 1 P R30 C9 C10 10u 3.6K 0.1u R26 Q 13 9013 R25 10/1W 330 Q6 9013 R20 R18 100 R16 1K S1 B1 12V R24 100 Figure 6. Typical Application Circuit of PT8A991P Ver:2 Data Sheet PT8A990P/991P 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. PT0053(15/03/01) 11 Ver:2