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HT16561 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc |
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HT16561 Datasheet(HTML) 2 Page - Holtek Semiconductor Inc |
2 / 9 page Pin Assignment Pin Description Pin Name I/O Description VDD O High voltage power supply pin. VSS ¾ Ground pin. DIM I Illumination level control pins. Internally connected to pull-down resistors. CONT1 I CONT2 I Illumination level control pins. Internally connected to pull-up resistors. A/C I When the A/C pin is low, the internal circuits are reset. The reset pulse width should be more than 2 ms. Internally connected to a pull-up resistor. ZA I Zero adjustment pin. Internally connected to a pull-down resistor. HS I Hour adjustment pin. Internally connected to a pull-down resistor. MS I Minute adjustment pin. Internally connected to a pull-down resistor. SE I Set enable pin. Internally connected to a pull-up resistor. OSCO O Crystal oscillator pin OSCI I TEST1, TEST2 I IC test pin - should be left open or kept at a low level TEST3, TEST4 I IC test pin - should be left open or kept at a high level 64Hz O 64Hz signal output pin for oscillation frequency adjustment a1, a3 ~ b2, b4, c4 O Segment output pins for VFD AM, PM 1Hz HT16561 Rev. 1.10 2 May 24, 2012 H T 1 6 5 6 1 4 4 Q F P - A 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 g 3 e 3 d 3 c 3 g 2 e 2 c 2 g 1 e 1 d 1 c 1 b 4 f 3 a 3 b 3 1 H z f 2 a 2 , d 2 b 2 f 1 a 1 b 1 H T 1 6 5 6 1 B 4 4 Q F P - B 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 c 4 P M Z A T E S T 1 T E S T 4 N C T E S T 3 T E S T 2 M S H S A M 6 4 H z D I M S E V D D C O N T 1 N C C O N T 2 V S S O S C I O S C O A / C |
Similar Part No. - HT16561_12 |
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Similar Description - HT16561_12 |
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