TM1721

mñW3^Y)_®u5[Pg–PQlSø W0W@ÿmñW3^SW\qS:šØe°b€g/N§NVíSS:}+QIOá`on/Ah10\B SŸS‚U.`;èÿbKg:18682063283 QQÿ709072958 E-mail: [email protected] 1. TM1721 LCD 3 LCD HT6221 DVD LCD LED IC SW MCU LED VCR PWM VCD 2. ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ CMOS 32X4 LCD 6X4 4 LED 64 PWM 4 1/3LCD LCD CLK STB DIO RC SSOP48,LQFP48 LCD 128KHZ 3. © V1.4 1 4. SSOP48 DIO 2 LFQP48 44 / N CLK 3 45 / STB 4 46 STB STB DIO CLK COM0~COM3 SEG0~SEG19 PWM0/SEG20 PWM1/SEG21 PWM2/SEG22 PWM3/SEG23 SW0/SEG24 SW1/SEG25 SW2/SEG26 SW3/SEG27 KEY0/SEG28 KEY1/SEG29 KEY2/SEG30 KEY3/SEG31 KS0~KS5 VDD GND NC PWM / 44~48 44~43 42~24 20~23 / 16-19 / 12-15 38~41 18~37 LCD LCD (common) (segment) PWM 64 PWM , LCD 14~17 PWM 10-13 , 6-9 1-5 48 43 47 42 , 4X6 6-11 1 5 42 3V~6V DIO DIO N N 1K-10K 5 10K © V1.4 2 VCC 10K DIO CT GND 1 5. TM1721 SGE LCD COM LCD 00H-0FH 16 SEG0 SEG2 SEG4 SEG6 SEG8 SEG10 SEG12 SEG14 SEG16 SEG18 SEG20 SEG22 SEG24 SEG26 SEG28 SEG30 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 SEG1 SEG3 SEG5 SEG7 SEG9 SEG11 SEG13 SEG15 SEG17 SEG19 SEG21 SEG23 SEG25 SEG27 SEG29 SEG31 Bit6 Bit7 00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0AH 0BH 0CH 0DH 0EH 0FH © V1.4 3 6. KS0 KEY0/ SG28 KEY1/ SG29 KS0 KS2 KS4 Bit0 1 2 KEY1 3 TM1721 Bit1 KS5 KEY2 KS5 KEY 0 KEY2/ SG30 KS1 Bit2 3 3 KEY3/ SG31 BYTE1-BYTE3 3 KEY3 KS5 KS KEY KS2 KS Bit3 KEY0/ SG28 KS3 2 Bit4 KEY1/ SG29 KS4 KS1 KS3 KS5 Bit5 KEY2/ SG30 KS5 KEY0 KEY1 KEY2 KEY3 BYTE1 BYTE3 BIT 1 KEY3/ SG31 00H 01H 02H Bit6 Bit7 3 KEY2 6BIT BYTE3 K...