HT1632C(2015) データシートの表示（PDF） - Holtek Semiconductor

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HT1632C
(Rev.:2015)

32×8 & 24×16 LED Driver

Holtek Semiconductor 

HT1632C

32×8 & 24×16 LED Driver

Features

• Operating voltage: 2.4V~5.5V

• Multiple LED display − 32 ROW /8 COM and

24 ROW & 16 COM

• Integrated display RAM − select 32 ROW &

8 COM for 64×4 display RAM, or select

24 ROW & 16 COM for 96×4 display RAM

• 16-level PWM brightness control

• Integrated 256kHz RC oscillator

• Serial MCU interface − CS, RD, WR, DATA

• Data mode & command mode instruction

• Cascading function for extended applications

• Selectable NMOS open drain output driver and

PMOS open drain output driver for commons

• 48/52-pin LQFP package

Applications

• Industrial control indicator

• Digital clock, thermometer, counter, voltmeter

• Instrumentation readouts

• Other consumer application

• LED Displays

General Description

The HT1632C is a memory mapping LED display

controller/driver, which can select a number of ROW

and commons. These are 32 ROW & 8 Commons

and 24 ROW & 16 Commons. The device supports

16-gradation LEDs for each out line using PWM

control with software instructions. A serial interface

is conveniently provided for the command mode

and data mode. Only three or four lines are required

for the interface between the host controller and the

HT1632C. The display can be extended by cascading

the HT1632C for wider applications.

Block Diagram

VDD

VSS

D is p la y R A M

CS

RD

WR

D ATA

O SC

SYNC

C o n tro l

and

T im in g

C ir c u it

T im in g

G e n e ra to r

L E D D r iv e r

2

VDD

COM 0

COM 7

ROW 0

R O W 23

R O W 2 4 /C O M 1 5

R O W 3 1 /C O M 8

VSS

2

P W M C o n tro l

Rev. 1.60

1

August 19, 2015

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