unisonic technologies co., ltd rct6 cmos ic www.unisonic.com.tw 1 of 8 copyright ? 2015 unisonic technologies co., ltd qw-r502-058.c remote controller with seven functions ? description the utc rct6 is a pair of cmos lsis designed for remote controlled car applications. the utc rct6 have seven control keys controlling the motions (i.e. forward, backward, rightward, leftward, two function keys, and the turbo fu nction) of the remote controlled car. utc rct6 have forward (backward) combined with the turbo application. the utc rct6 is the sending electric circuit. ? features * operating voltage range: 2.0v ~ 5.0v * rct6-a built-in 3.6v zener rct6-b built-in 4.2v zener rct6-c built-in 5.0v zener * very low stand-by current * few external components needed * 7-function remote controller controlling forward/backward/turbo/ right-turn/left turn/two function keys dip-16 ? ordering information order number lead free halogen free package packing RCT6L-X-D16-T rct6g-x-d16-t dip-16 tube ? marking
rct6 cmos ic unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r502-058.c ? pin configurations ? pin description pin no. pin name description 1 rightb the rightward function will be selected when this pin is connected to gnd 2 nc no connection 3 gnd negative power supply 4 backwardb the backward function will be selected when this pin is connected to gnd 5 forwardb the forward function will be selected when this pin is connected to gnd 6 turbob the turbo function will be selected when this pin is connected to gnd 7 sc output pin of the encoding signal with carrier frequency 8 nc no connection 9 f2b f2 function select 10 so output pin of the encoding signal without carrier frequency 11 v dd positive power supply 12 pc power control output pin 13 osco oscillator output pin 14 osci oscillator input pin 15 f1b f1 function select 16 leftb the leftward function will be selected when this pin is connected to gnd.
rct6 cmos ic unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r502-058.c ? block diagram o/p condition input 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-i n according to toy safety requirement and effect ive 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)
rct6 cmos ic unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r502-058.c ? absolute maximum ratings parameter symbol ratings unit dc supply voltage v dd 2.0 ~ 5.0 v input/output voltage gnd -0.2 ~ v dd + 0.2 v operating temperature t opr -20 ~ +85 c storage temperature t stg -40 ~ +150 c note: absolute maximum ratings and operation rating recommended are those values beyond which the device could be permanently damaged. absolute maximum rati ngs are stress ratings only and functional device operation is not implied. ? electrical characteristics (v dd =3.5v, t a =25c, unless otherwise specified.) parameter symbol test conditions min typ max unit operating voltage v opr 3 5 v rct6-a 15 ma rct6-b 0.6 ma supply current i dd unload rct6-c 0.4 ma stand-by current i stn-by unload 1 ma so o/p driving current (rf) i drso v oh = 0.7v 10 ma ac o/p frequency f audio 500 hz oscillator frequency f osc 128 khz oscillator frequency tolerance f tolerance utc rcr6 f osc =128khz -20 +20 %
rct6 cmos ic unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r502-058.c ? data format f1 = "1" f0 = "0" 500hz, 3/4 duty 500hz, 1/4 duty ? coding method the data string that utc rct6 receives is below: data string: start code + dat a code + parity code + end code - start code = f1 f1 f1 f1 f0 - data code = b t rlf1nn f2 f f = forward b = backward t = turbo r = right l = left f1 = function 1 f2 = function 2 n = no used code f b t r l f1 n n 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, except for f & b, and r & l.
rct6 cmos ic unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r502-058.c ? output tables output status function f b t r l f1 f2 forward z blank=0 left+forward z h right+forward z h turbo h turbo+forward h h turbo+left+forward h h h turbo+right+forward h h h backward z backward+right z h backward+left z h turbo+backward h h turbo+backward+right h h h turbo+backward+left h h h left h right h function1 h forward+function1 z h forward+turbo+function1 h h h turbo+function1 h h backward+function1 z h backward+turbo+function1 h h h left+forward+function1 z h h right+forward+function1 z h h left+backward+function1 z h h right+backward+function1 z h h left+function1 h h right+function1 h h function2 h forward+function2 z h forward+turbo+function2 h h h turbo+function2 h h backward+function2 z h backward+turbo+function2 h h h left+forward+function2 z h h right+forward+ function2 z h h left+backward+function z h h right+backward+function2 z h h left+function h h right+function2 h h h = high level, z = 60hz flash thus, from the table, we can see that there are more than 50 stat es of function combinations from 7 control keys.
rct6 cmos ic unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r502-058.c ? typical application circuit (for reference only) transmitter (utc rct6 fosc 128khz) 9v q2 sf1 150k c1 c3 l2 c8 zd1 r utc rct6-a 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 l b f t l3 47p c6 47p r6 100 r5 33k 100 r3 c5 47p c4 47p l1 r2 120k crystal 27.145mhz + - 330 r1 50k r7 0.02 p 33 p c2 q1 r4 6.8k 0.02 p 0.02 p c7 c9 100p 10p c10 amp
rct6 cmos ic unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r502-058.c ? test circuit fosc for utc rct6 128khz utc rct6 output pin (so) has an inverted phase with utc rcr6c input (si). if utc rct6 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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