HT1632C(2015) View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT1632C
(Rev.:2015)

32×8 & 24×16 LED Driver

Holtek Semiconductor 

Cascade Control Flow

P ow eron

S Y S D IS

( M a s te r , S la v e )

C O M O p tio n

( M a s te r , S la v e )

M a s te r M o d e

(M a s te r)

S la v e M o d e

( S la v e )

SYS O N

( M a s te r , S la v e )

LE D O N

( M a s te r , S la v e )

W r ite R A M D a ta

( M a s te r , S la v e )

U p d a te R A M D a ta

( M a s te r , S la v e )

HT1632C

Command Summary

Name

ID

Command Code

READ

1 1 0 A6A5A4A3A2A1A0D0D1D2D3

WRITE

1 0 1 A6A5A4A3A2A1A0D0D1D2D3

READ-MODIFY-

WRITE

1 0 1 A6A5A4A3A2A1A0D0D1D2D3

SYS DIS

1 0 0 0000-0000-X

SYS EN

LED Off

LED On

BLINK Off

BLINK On

1 0 0 0000-0001-X

1 0 0 0000-0010-X

1 0 0 0000-0011-X

1 0 0 0000-1000-X

1 0 0 0000-1001-X

SLAVE Mode 1 0 0 0001-0XXX-X

RC Master

Mode

1 0 0 0001-10XX-X

D/C

Function

D Read data from the RAM

D Write data to the RAM

Default

D Read and Write data to the RAM

C

Turn off both system oscillator and LED

duty cycle generator

Yes

C Turn on system oscillator

C Turn off LED duty cycle generator

Yes

C Turn on LED duty cycle generator

C Turn off blinking function

Yes

C Turn on blinking function

Set slave mode and clock source from

C

external clock, the system clock input from

OSC pin and synchronous signal input from

SYN pin

Set master mode and clock source from

C

on-chip RC oscillator, the system clock

output to OSC pin and synchronous signal

Yes

output to SYN pin

Rev. 1.60

20

August 19, 2015

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