unisonic technologies co., ltd rcr5 preliminary cmos ic www.unisonic.com.tw 1 of 8 copyright ? 2014 unisonic technologies co., ltd qw-r112-003.a remote controller with nine functions ? description the utc rcr5 is a cmos lsi and designed as receiver that complement to utc rct5 for remote controlled car applications. it provide nine control keys controlling the motions, which are forward, backward, rightward, leftward, four function keys, and the turbo function, of the remote controlled car. utc rcr5 have forward (backward) combined with the turbo application. during normal operat ion without turbo, forward (backward) output from utc rcr5 sends a 60hz signal. when forward (backward) and turbo are both in effect, the output signal becomes completely high. ? features * operating voltage range: 2.4v~4.0v * built-in 4.2v zener * few external components needed * 9-function remote controller controlling forward/ backward/ turbo/ right-turn/ left turn/ four function keys * complement to utc rct5 . dip-22 ? ordering information ordering number package packing lead free halogen free rcr5l-d22-t RCR5G-D22-T dip-22 tube ? marking
rcr5 preliminary cmos ic unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r112-003.a ? pin configurations ? pin description pin no. pin name description 1 vo2 inverter 2 output pin for signal amplify 2 gnd ground 3 si input pin of the encoding signal 4 osci oscillator input pin 5 osco oscillator output pin 6 f1 f1 function output pin 7 right rightward output pin 8 f2 f2 function output pin 9 left leftward output pin 10 v t auto shut-off input pin. if v t voltage exceeds 1.4v, all out puts shut off automatically. 11 rdb right disable pin. 12 ldb left disable pin. 13 lrtd left/right turbo disable pin 14 backward backward output pin 15 f4 f4 function output pin 16 forward forward output pin 17 f3 f3 function output pin 18 turbo turbo output pin 19 v dd power supply 20 vi1 inverter 1 input pin for signal amplify 21 vo1 inverter 1 output pin for signal amplify 22 vi2 inverter 2 input pin for signal amplify
rcr5 preliminary cmos ic unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r112-003.a ? block diagram input condition o/p condition forward backward turbo forward =60hz low low backward low =60hz low forward + turbo =high low =high backward + turbo low =high =high an auto shut-off mechanism is built-in according to toy safety requirement and effective during over-current situation in motor driver. the active high input applying to this auto shut-off pin will turn off the motor. (v t pin, when unused, has to be connected to gr ound. the transfer point =1.4v)
rcr5 preliminary cmos ic unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r112-003.a ? absolute maximum ratings parameter symbol ratings unit dc supply voltage v dd 2.4~4.0 v input/output voltage gnd-0.2~ v dd +0.2 v operating temperature t opr -10~+60 c storage temperature t stg -25~+125 c note: absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical characteristics (t a =25 , v dd =3.0v, fosc=128khz, unless otherwise specified.) direct driving: no connect a re sistance between power and ic?s v dd pin. parameter symbol test conditions min typ max unit operating voltage v opr 2.4 3.0 4.0 v operating current i opr unload 0.2 0.4 1.0 ma o/p driving current i drive v oh =0.7v 5.0 ma o/p driving current (f1, f2) i drive v oh =0.7v 5.0 ma effect decoding (frequency variation) f tolerance -50 50 % oscillator frequency f osc 128 khz oscillator frequency tolerance ftolerance utc rct5 fosc=128khz -20 +20 %
rcr5 preliminary cmos ic unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r112-003.a ? data format f1 = "1" f0 = "0" 500hz, 3/4 duty 500hz, 1/4 duty ? coding method the data string that utc rcr5 receiver is below: data string: start code + dat a code + parity code + end code - start code = f1 f1 f1 f1 f0 - data code = b t r l f1 f3 f4 f2 f f = forward b = backward t = turbo r = right l = left f1 = function 1 f2 = function 2 f3 = function 3 f4 = function 3 f b t r l f1 f3 f4 f2 all can have two date format, ?f1? or ?f0?, ?f1? means the function is in effect, and ?f0? means not. - parity code = for parity check - end code = for (latch data) * data code can be any combination of f, b, t, r, l, f1, f2, f3, f4 except for f & b, and r & l
rcr5 preliminary cmos ic unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r112-003.a ? output tables
rcr5 preliminary cmos ic unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r112-003.a ? output tables(cont.) h = high level, z = 60hz flash, blank=l thus, from the table, we can see that there are more than 50 stat es of function combinations from 7 control keys. notes: 1. lrtd pin functions as an opt ion pin for left/right turbo disable. "lrtd" key selected output function high (open) forward + left (right) + turbo forward + left (right) + turbo low forward + lett (right) + turbo forward + left (right) 2. the utc rcr5 have built in a zener diode, so you must add a resistance between power and ic?s v dd pin, like the r6 of utc rcr5 application circuit. ? typical application circuit (for reference only) receiver (utc rcr5 fosc 128khz)
rcr5 preliminary cmos ic unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r112-003.a ? test circuit fosc for utc rcr5 128khz utc rct5 output pin (so) has an inverted phase with utc rcr5 input (si). if utc rct5 is connected without using a r f module, an inverter has to be inserted between this 2 pins. utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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