TK-5210241 STRB I Latch clock input2 DATA I Serial data input3 CLK I Serial clock input4-7 Q1-Q4 O Key counter8 VSS - GND9 QS O Serial data output10 Q’S O NC11-14 Q8-Q5 O Key counter15 OE I Output enable control input16 VDD - Power supply input1 STRB I Latch clock input2 DATA I Serial data input3 CLK I Serial clock input4-7 Q1-Q4 O Key counter8 VSS - GND9 QS O Serial data output10 Q’4 O NC11-14 Q8-Q5 O Key counter15 OE I Output enable control input16 VDD - Power supply input1 STRB I Latch clock input2 DATA I Serial data input3 CLK I Serial clock input4-7 Q1-Q4 O Key counter8 VSS - GND9 OS O NC10 NC O NC11 Q8 O Audio amplifier switch12 Q7 O Backlighit switch13 Q6 O TX LED switch14 Q5 O Busy LED switch15 OE I Output enable control input16 VDD - Power supply input97 HINT I(INT4) DSP HINT interrupt98 CAE3 I Man-down switch input99 PTT I PTT input100 EXSP I External speaker install check101 DRST O DSP reset output102 FRST O Flash memory reset output103 DSPINT O DSP interrupt output104 D7 I/O Data bus 7105 D6 I/O Data bus 6106 D5 I/O Data bus 5107 D4 I/O Data bus 4108 D3 I/O Data bus 3109 D2 I/O Data bus 2110 D1 I/O Data bus 1111 D0 I/O Data bus 0112 5TC O 5T control (L:Off, H:On)113 5RC O 5R control (L:Off, H:On)114 5CC O 5C control (L:Off, H:On)115 APCSW O APC switch output (L:Off, H:On)116 ANTSW - No connection117 SELF I 3.3V118 MM O MIC mute output (L:Unmute, H:Mute)119 PWR O Power control output(L:Power off, H:Normal)120 WPA I(A/D) PA temperature compensation121 SQ I(A/D) Analog SQ input122 CV I(A/D) VCO CV input123 RSSI I(A/D) RSSI input124 TEMP I(A/D) Temperature input125 BATT I(A/D) Battery level input126 REM I(A/D) KMC-25 PF1/PF2 key, KVL3000 input127 AVSS - A/D converter power supply input terminal128 VOL I(A/D) Volume level input1 STRB I Latch clock input2 DATA I Serial data input3 CLK I Serial clock input4 Q1 O OPT55 Q2 O OPT46 Q3 O OPT17 Q4 O OP_MAN8 VSS - GND9 QS O Serial data output10 Q'S O NC11 Q8 O OPT612 Q7 O OPT213 Q6 O CHGIO:UNIV 9p I/O Switching14 Q5 O OPT315 OE I Output enable control input16 VDD - Power supply inputSEMICONDUCTOR DATAPin Port Name I/O FunctionNo.Pin Port Name I/O FunctionNo.Shift Register:BU4094BCFV (TX-RX unit: IC 11)Shift Register: BU4094BCF (Control unit IC701)Pin Port Name I/O FunctionNo.Shift Register: BU4094BCF (Control unit IC702)Pin Port Name I/O FunctionNo.Shift Register: BU4094BCF (Control unit IC703)Pin Port Name I/O FunctionNo.