LSI

LS3013

Preliminary specification

4 LED controller

Features

* 4 LED direct drive

* 6 input.

* 256 word program control.

* 16 x 4 bit RAM.

* Low power consumption

* 32768 Crystal oscillator/RC oscillator

* 3.0V/1.5V operation.

General Description

The LS3013 is a simple micro-controller for LED application. Internal ROM of 256x10, RAM

16x4. It has 4 direct LED output. All output can be mask option as CMOS/NMOS open drain output.

Oscillator is RC or Crystal selected by mask option.

Functional Description

1. RC Oscillator /Crystal

The LS3013 can use either a crystal oscillator or RC oscillator to provide the internal timing by

bonding option.

2. Program ROM

The LS3013 has internal 256x12 bit ROM providing simple operation.

3. Interrupt Control

The LS3013 has 5 different sources of interrupt, namely, POWERUP, F4HZ, F16HZA, F16HZS and

F1HZ. The starting address of the interrupt are as follow :

Interrupt

Address

POWERUP

0xff

F1HZ

0xfe

F4HZ

0xfc

F16HZA

0xf9

F16HZS

0xf2

The system generates 16 interrupts for F16HZS in one second but only 11 interrupts for F16HZA.

The other 5 interrupts goes to F4HZ (4) and F1HZ (1) interrupts.

3. Program RAM