Holtek Semiconductor HT16566
The HT16566 provides direct drive to VFD panels to implement a 24 hour clock function. These include a choice of adjustment modes, including single push increment or 2Hz fast forward functions.| Part No. | HT16566 |
|---|---|
| Datasheet | HT16566 Download |
| Manufacturer |  Holtek Semiconductor |
| Description | 1/2 Duty VFD Digital Clock |
| Buy | Stock & Price |
FEATURES
● VFD display 24 hour clock function● Directly drive VFD panels at 1/2 Duty cycle
● 4.194304MHz crystal oscillation
● Zero adjust function
● Integrated voltage regulator permits wide 4V to 18V operating voltage range
● Four levels of illumination control function
● 30-pin SSOP package
GENERAL DESCRIPTION
Obtaining its time base from a 4.194304MHz crystal oscillation source and in having a wide operating voltage due to its internal voltage regulator, the device also contains a host of other features. Additional features are provided in the form of Blank control, Zero adjustment and four levels of illumination control. Block Diagram V C C V S S V D D V D D V o lta g e R e g u la to r C ir c u it V D D V D D H o u r C o u n te r A /C V T im e A d ju s tm e n t D D 1 a , 3 a 1 b , 3 b 1 c , 3 c 1 d , 3 d 1 e , 3 e 1 f, 3 f 1 g , 3 g 2 a , 2 d , 4 a 2 b , 4 b 2 c , c o l* 2 c , c o l'* 2 e , 4 e 2 f, 4 c Z A V M in u te C o u n te r D D S e g m e n t D e c o d e r S e g m e n t O...
