Data Brief

For further information contact your local STMicroelectronics sales office.

February 2007

Rev 1

1/4

4

Features

/ 6 digits)

open-drain

DIN/DOUT)

display brightness

setting

immunity

used to drive up to 8 discrete LEDs

individual LEDs for LED digit

Applications

Description

The STLED316S is a compact LED controller and

driver that interface microprocessors to LED

displays through serial 3-wire interface. It drives

LED connected in common anode configuration.

The STLED316S drives up to 48 discrete LEDs in

8 segment/6 digit configuration while functioning

from a supply voltage of 5.0V. Additionally it can

be used to drive 8 discrete LEDs which form a

part of LED digit. The individual LEDs are wired

as segments of a digit and brightness of these

individual LEDs can be controlled digitally. The

maximum segment current for the display digits is

set through a single external resistor. Individual

digits may be addressed and updated without re-

writing the entire display.

Additionally it includes key scanning for an 8x2

key matrix which automatically scans a matrix of

up to 16 switches. STLED316S supports numeric-

type displays and reduces the overall BOM costs

through high integration. Also it provides ESD

protection of greater than 2kV HBM.

The LED controller/driver is ideal as a peripheral

device to interface the display with a singlechip

microcomputer.

SO-24

STLED316S

Serial-Interfaced 6-Digit LED controller with key scan

www.st.com

Order codes

Part number

Temperature range

Package

Packaging

STLED316SMTR

-65 to +150 °C

SO-24

250 parts per reel