TMS37F158LGIDBTRG4 datasheet(3/8 Pages) TI1

Part #	TMS37F158LGIDBTRG4

Description	CONTROLLER ENTRY DEVICE WITH INTEGRATED DST80 AUTHENTICATION, EEPROM, AND LF IMMOBILIZER INTERFACE

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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3 / 8 page

LF Immobilizer

Antenna

Charging

Amplifier

UHF

antenna

Up to 13 ft (4 m)

cable length

Embedded

Processor

Power Supply

Load Drivers

Current

Measurement

Key fob side

Car side

LF

Base Station

TMS3705-Q1

UHF Transceiver

or

UHF Receiver

CC11x1-Q1

System Supply

GIO

SPI

UHF Transmitter or

UHF Transceiver

CC11x1-Q1

Controller

Entry Device

(Immobilizer and

Microcontroller)

CED80

1D LF

Antenna

Push

Buttons

LED

Optional for

battery charge

SPI

Internal

SPI

Interface

USART0

UART,

SPI Mode

LF

Controller

EEPROM

External

LF

Interface

Authentication

Coprocessor

Analog Frontend

P1.x

P2.x

I/O Port

P1

7 I/Os

I/O Port

P2

5 I/Os

I/O Port

P3

4 Internal

I/Os

XIN

XOUT

Comp_A

POR

ACLK

SMCLK

Oscillator

Clock

System

DMA

Controller

3 Channel

8MHz

CPU

incl. 16

Registers

Bus

Control

Logic

MAB

MDB

Flash

8KB

+

256B

RAM

256B

Timer_A3

3 CC

Registers

Watchdog

15,16 Bit

JTAG

Interface

TMS37F158

www.ti.com

SCBS877 – MAY 2012

Functional Block Diagram

Figure 1. Application Diagram

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