MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

This document contains information on a product under development.

Motorola reserves the right to change or discontinue this product without notice.

© Motorola, Inc. 2004

Document order number: MC33996

Rev 1.0, 01/2004

33996

Preliminary Information

Simplified Application Diagram

VPWR

MCU

33996

LED

Lamp

Solenoid/Relay

3.3 V/5.0 V

VDD

VPWR

GND

OUT15

OUT0

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

OUT9

OUT10

OUT11

OUT12

OUT13

OUT14

VBAT

SOPWR

SO

MOSI

PWM

PWM

SI

MISO

CS

CS

SCLK

SCLK

RST

RST

ORDERING INFORMATION

Device

Temperature

Package

PC33996EK/R2

-40°C to 125°C

32 SOICW-EP

16-Output Switch with SPI Control

The 33996 is a 16-output low-side switch with a 24-bit serial input control.

It is designed for a variety of applications including inductive, incandescent,

and LED loads. The Serial Peripheral Interface (SPI) provides both input

control and diagnostic readout. A Pulse Width Modulation (PWM) control input

is provided for pulse width modulation of multiple outputs at the same duty

cycle. A dedicated reset input provides the ability to clear all internal registers

and turn all outputs off.

The 33996 directly interfaces with microcontrollers and is compatible with

both 3.3 V and 5.0 V CMOS logic levels. The 33996, in effect, serves as a bus

expander and buffer with fault management features that reduce the MCU’s

fault management burden.

Features

• 24-Bit SPI for Control and Fault Reporting, 3.3 V/5.0 V Compatible

• Outputs Are Current Limited (0.9 A to 2.5 A) to Drive Incandescent

Lamps

• Output Voltage Clamp of +50 V During Inductive Switching

• On/Off Control of Open Load Detect Current (LED Application)

• Independent Overtemperature Protection

• Output Selectable for PWM Control

• 32-Pin Exposed Pad Package for Thermal Performance

• Pb-Free Packaging Designated by Suffix Code EK

DUAL OCTAL SERIAL SWITCH

WITH SERIAL PERIPHERAL

INTERFACE I/O

EK (Pb-FREE) SUFFIX

CASE 1454-01

32-LEAD SOICW EXPOSED PAD

33996 Simplified Application Diagram

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com