TMP47C231AN

      The TMP47C231AN is the high speed and high performance 4-bit single chip microcomputer based on the TLCS-47 CMOS series,remote control signal preprocessor,A/D converter input for AFC signal or key input,-bit D/A converter(pulse width modulation) outputn, and so on-bit serial interface on a chip.The 47C231A is suitable for application to the digital tuning systems for TV and VCR set.The ROM is 2048*8 bit and the RAM is 128*4 bit.Here you can get some information about the features.First, TMP47C231AN is a 4-bit single chip microcomputer.Secondly,the instructio execution time is 1.9s (at 4.2 MHz).Thirdly,the subroutine nesting can reach 15 levels (max).Fourthly,TMP47C231AN has 6 interrupt sources (External:2,Internal:4) and all sources have independent lathes each,and multiple interrupt control is available.Fifthly,it has interval timer.Sixthly,it has remote control signal preprocessing capability.Seventhly,TMP47C231AN has hold function for that it has battery/capacitor back-up.The last one is the high current outputs LED direct drive capability (typ.20mA*8bits).
      What comes next is about the TMP47C231AN electrical characteristics (V_SS=0 V).The supply voltage (V_DD) is from-0.3 to 7 V.The input voltage (V_IN) is from -0.3 to V_DD+0.3 V.The output voltage (V_OUT1) is from -0.3 to V_DD+0.3 V except sink open drain pin but include R70 pin and the output voltage (V_OUT2) is -0.3 to 10 V at sink open drain pin except R70 pin.The output current (per 1 pin) (I_OUT1) is 10 mA at ports R5 and R6 and the output current (per 1 pin) (I_OUT2) is 3.2 mA at ports R7,R8,R9.The output current (Total) (I_OUT1) is 120 mA at ports R5,R6 .The power dissipation (Topr=70 ) (P_D) is 600 mW.The soldering temperature (T_sld) is 260 (10 sec).The storage temperature (T_stg) is from -55 to +125.The operating temperature (T_opr) is from -30 to +70.
      Then is about the TMP47C231AN recommended operating conditions (V_SS=0 V,T_opr=-30 to 70).The minimum supply voltage (V_DD) is 4.5 V in the normal mode,2.0 V in the hold mode and the maximum is 6.0 V.The minimum input high voltage (V_IH1) is VDD*0.7 V at V_DD4.5 V except hysteresis input;the minimum input high voltage (V_IH2) is VDD*0.75 V at V_DD4.5 V and hysteresis input;the minimum input high voltage (V_IH3) is V_DD*0.9 V at V_DD<4.5 V.The maximum of V_IH1,V_IH2 and V_IH3 is V_DD V.The maximum input low voltage (V_IL1) is V_DD*0.3 V at V_DD4.5 V except hysteresis input;the maximum input high voltage (V_IL2) is V_DD*0.25 V at V_DD4.5 V and hysteresis input;the maximum input high voltage (V_IL3) is V_DD*0.1 V at V_DD<4.5 V.The minimum of V_IL1,V_IL2 and V_IL3 are 0 V.The clock frequency (f_C) is 0.4 MHz and the maximum is 4.2 MHz.