ata5790 ATMEL Corporation, ata5790 Datasheet

ata5790

Manufacturer Part Number

ata5790

Description

Embedded Avr Microcontroller Including Complete Lf Functionality For Passive Entry / Passive Start Keys

Manufacturer

ATMEL Corporation

Datasheet

1.ATA5790.pdf (7 pages)

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Features

•

Contactless Transponder

•

3D LF 125kHz LF Receiver

•

Ultra-low-power AVR Microcontroller

•

System Solution for Immobilizer and Passive Entry / Passive Start (PEPS) Functionality

Optional integrated Open Source Immobilizer Software Stack Supports Automotive

Immobilizer Applications (CMMI certified)

Integrated Ultra-low Power Flash AVR (8-bit) Microcontroller

2112-byte EEPROM

32-bit Unique Device Identification Number

Available in Small 5x7 QFN 38-Pin Package

LF Contactless Transponder Operation in Passive and Active Modes

Integrated Codecs for Enhanced LF Communication Range

Ultra Low-power AES-128 Cryptographic Engine for Using Immobilizer and PEPS

Applications

Access Protected Area for two 128-bit Secret Keys for Device Authentication

Optional One 128-bit Transport Key for Initial Configuration

LF Receive Data Integrity Check (CRC-4/CRC-8)

Wake-up Sensitivity 1.3mVpp for All Receiver Channels

Supply Current for LF Receiver Active (4µA/Listen Mode)

Logarithmic 8-bit digital RSSI for Simultaneous Field Strength Measurement of All

Three Receiver Channels

Two Different Identification (ID) Registers

Programmable Data Frame Length of the ID

16Kbyte Flash Program Memory (Including 2KB of Immobilizer Software Stack)

2112-byte EEPROM - Including Protected User Data and Device Configuration Data

(64Bytes)

Error Correction Code (ECC) Engine Protects Flash and EEPROM

512Bytes of SRAM

Four GP Timers

Power Management Unit

System Clock Management and Monitoring Functions

POR and Brown-out Detection

Programmable Voltage Monitor

RTC and Two Internal System Clock RC Oscillators with f

SPI, TM/SSI, IR Digital Interfaces; dW 1-wire Debug IF with AVR Device Tools

Very Low Power Consumption:

Wide Battery Voltage Range from1.9V to 4.2V (In Contact Mode)

–40°C to +85°C Operating Temperature

Automotive Grade C Compiler

– T0: Flexible WD and Interval Timers

– T1: 15-bit Interval Timer

– T2: Asynchronous 8-bit Timer/Counter with Output Compare

– T3: Asynchronous 8-bit Timer/Counter with Output Compare and Input Capture

– Active: 50µA (Sys_Clk at 125kHz)

– Idle: < 70µA (Sys_Clk at 1MHz)

– Power-Down: 0.8µA

– EE(wr): 40µA

= 125kHz, f

= 4MHz

Embedded AVR

Microcontroller

Including

Complete LF

Functionality

for Passive

Entry / Passive

Start Keys

Atmel ATA5790

Summary

NOTE: This is a summary document.

The complete document is available

under NDA. For more information,

please contact your local Atmel sales

office.

9197CS–RKE–07/11

Related parts for ata5790

ata5790 Summary of contents

Page 1

... Embedded AVR Microcontroller Including Complete LF Functionality for Passive Entry / Passive Start Keys Atmel ATA5790 Summary NOTE: This is a summary document. The complete document is available under NDA. For more information, please contact your local Atmel sales office. 9197CS–RKE–07/11 ...

Page 2

... ATA5790 ISP: In-System-Programmable Flash Interface Atmel ATA5790 2 ATA5790 is a smart Passive Entry/Passive Start (PEPS) device that includes an embed- ® 8-bit microcontroller, a three-dimensional LF receiver module and an Key Battery VBAT LF-Coil 17 Z-axis 16 LF-Coil 15 Y-axis 14 13 ...

Page 3

... Atmel ATA5790 Block Diagram ® Figure 1-2. Atmel ATA5790 Block Diagram A1P Management A1N A2P Contactless A2N Transponder A3P A3N A4P A4N Volt. Monitor PD7/TM3 PD6/TM2 PD5/TM1 PD4/ECIN0 Timer Block PD3 PD2/TEI PD1/T3ICP Crypto Unit PD0/INT0 1.3 Pin Configurations Figure 1-3. 9197CS–RKE–07/11 ...

Page 4

... SCK 33 PB0 NSS 34 GND - 35 GND - 36 PB7 - 37 PB6 - 38 GND - Atmel ATA5790 4 Alternate Function 2 Function - Test mode enable - Power supply ground - Power supply ground - Power supply ground - Reset input / debugWire interface PCINT8 I/O-port / External interrupt input 0 PCINT9 I/O-port / Timer3 external capture input PCINT10 I/O-port / External Timer input clock Power supply voltage for the microcontroller ...

Page 5

... Z Package Drawing Contact: packagedrawings@atmel.com 9197CS–RKE–07/11 Package QFN38 - 5x7 10:1 b TITLE Package: VQFN_5x7_38L Exposed pad 3.6x5.6 Atmel ATA5790 Remarks Pb-free technical drawings according to DIN specifications Dimensions in mm COMMON DIMENSIONS (Unit of Measure = mm) Symbol MIN NOM MAX NOTE A 0.8 0 ...

Page 6

... Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 9197CS-RKE-07/11 9197BS-RKE-05/11 Atmel ATA5790 6 History Set datasheet from Preliminary to Standard Features on page 1 updated Section 1 “Description” on page 2 updated 9197CS–RKE–07/11 ...

Page 7

... Atmel Munich GmbH Business Campus Parkring 4 D-85748 Garching b. Munich GERMANY Tel: (+49) 89-31970-0 Fax: (+49) 89-3194621 ® and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 JAPAN Tel: (+81) (3) 3523-3551 Fax: (+81) (3) 3523-7581 ...

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