HT16562

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HT16562 数据手册

HT16562

1/2 Duty VFD Digital Clock

Features

VFD display 12 hour clock function

Integrated voltage regulator permits wide 4V to 18V

operating voltage range

Directly drive VFD panels at 1/2 Duty cycle

Four levels of illumination control function

4.194304MHz crystal oscillation

30-pin SSOP package

Zero adjust function

General Description

The HT16562 provides direct drive to VFD panels to im-

plement a 12 hour clock function. 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. These include a choice of adjustment

modes, including single push increment or 2Hz fast for-

ward functions. Additional features are provided in the

form of Blank control, Zero adjustment and four levels of

illumination control.

Block Diagram

Note: ²*² col indicates a blink colon and col¢ indicates a continuous light colon.

Rev. 1.00

March 28, 2007

12 3 4 5 6 7 8

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