TMS37F128

www.ti.com

SCBS878 – APRIL 2012

CONTROLLER REMOTE ACCESS IDENTIFICATION DEVICE (CRAID) WITH INTEGRATED

MICROCONTROLLER, 3D WAKEUP RECEIVER, AND IMMOBILIZER INTERFACE

Check for Samples: TMS37F128

1

FEATURES

–

Up to 8-kbit/s LF Uplink Data Rate

–

5-/3-Byte Challenge/Response Algorithm

2

•

Wide Supply Voltage Range: 1.8 V to 3.6 V

–

Fast Authentication Within 42 ms

•

Ultralow Power Consumption

–

Fast Mutual Authentication Within 65 ms

–

CPU Active Mode: 200

μA/MHz at 2.2 V

–

133-Byte EEPROM

–

Standby Mode (LPM3): 0.7

μA

–

91-Byte Free Available EEPROM User

–

Off Mode (LPM4): 0.1

μA

Memory

–

Power-Down Mode: 60 nA

–

32-Bit Unique Serial Number

•

Microcontroller System and Peripherals

–

High EEPROM Security and Flexibility

–

16-Bit RISC Architecture, 125-ns Instruction

–

Write-Only Authentication Keys

Cycle Time

–

Pages Are Irreversibly Lockable and

–

Wake-Up From Standby Mode in <6

μs

Protectable

–

Basic Clock Module Configurations

–

Protected Pages Programmable Only

–

Single External Resistor

Through Mutual Authentication

–

32-kHz Crystal

–

Battery Check and Charge Functions

–

High-Frequency Crystal

–

Each User Page is Lockable

–

Resonator

–

Resonant Frequency: 134.2 kHz

–

External Clock Source

–

Integrated Resonant Frequency Trimming

–

16-Bit Timer_A With Three

•

Low-Frequency 3D Wakeup Receiver

Capture/Compare Registers

–

Highest Communication Range of More

–

10-Bit 200-ksps Analog-to-Digital (A/D)

Than Three Meters

Converter With Internal Reference, Sample-

–

and-Hold, and Autoscan

–

High Q System

–

8KB + 256B Flash Memory

–

Integrated Resonant Circuit Trimming

–

256B RAM

Compensates for Component Offsets

–

133-Byte EEPROM

–

Received Signal Strength Indicator (RSSI)

–

Serial Onboard Programming, No External

Output for Each Channel

Programming Voltage Needed

–

Resonant Circuit Usable as Clock

–

Programmable Code Protection by Security

Reference for Microcontroller (134.2 kHz)

Fuse

–

Frequency Range: 120 kHz to 140 kHz

–

80-Bit DST80 Security Authentication

–

Ultra-Low Standby Current: 3.9

μA (Typ)

Coprocessor

With All Three Channels Active for Wake

–

17 I/O Ports

Pattern Detection

•

Low-Frequency (LF) Immobilizer Interface

–

Interface to up to Three External Antennas

–

Integrated Batteryless Immobilizer Interface

–

Two Different Programmable Wake Patterns

–

Half Duplex (HDX) Immobilizer

–

Selectable Wake Pattern Length:

Communication Achieves up to 4-in (10-cm)

0, 4, 8 or 16 Bits

Read Range

–

Two Separate Adjustable Wake-Up Levels

–

Special Selective Addressing Mode Allows

–

Digital Channel Sensitivity Adjustment for

Reliable Learn-In Sequence

Each Antenna

–

80-Bit Authentication Key Length

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

MSP430 is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.