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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.
TM1721 Datasheet
