Atmel Network Card ATA6602 User Manual

AuToMoTIVe & CONTROL  
Microcontroller with LIN Transceiver,  
5V Regulator, and Watchdog  
ATA6602, ATA6603  
The ATA6602/ATA6603 are single-package dual-chip circuits for LIN-bus slave and master node applica-  
tions. They support highly integrated solutions for in-vehicle LIN networks. The LIN-system-basis-chip  
(LIN-SBC) consists of a LIN transceiver, which complies with the LIN specification; a voltage regulator; and  
a window watchdog. The second chip used in the ATA6602 and ATA6603 is from Atmel®’s series of AVR®  
8-bit microcontrollers with advanced RISC architecture. An ATmega88 microcontroller is used in the  
ATA6602, while an ATmega168 is used in the ATA6603. The LIN-SBC and the microcontroller are mounted  
in a small QFN48 package. This dual-chip combination makes it possible to develop inexpensive, simple,  
yet powerful master and slave nodes for use in LIN-bus systems.  
Features  
Benefits  
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Single-package Fully Integrated AVR 8-bit  
Microcontroller with LIN Transceiver, 5V Regula-  
tor, and Watchdog  
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Small Single-package Solution –  
QFN48, 7 mm x 7 mm  
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Small PCB Size with Fewer Soldering Inspections  
Silent Mode Supplies the Microcontroller in  
Sleep Mode Operation for e.g., Switch Scan-  
ning or LED Flashing Facilitating a Very Low  
Current Consumption  
Wake-up Capability via LIN-bus or WAKE Pin  
Boosting of the Voltage Regulators Current  
Capacity Possible with an External NPN Transistor  
60V Load Dump Protection at LIN Pin  
High ESD Level at LIN-bus Pin and Supply VS Pin  
Supported by AVR Development Tools AVR  
Studio®, JTAGICE, debugWIRE, and STK®500  
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Supply Voltage up to 40V  
Operating Voltage from 5V to 18V  
Temperature Range for Tcase –40°C to +125°C  
Same Features as the Stand-alone AVR  
ATmega88/168:  
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LIN-capable UART  
8-channel 10-bit ADC  
8 kByte (ATA6602) or 16 kByte (ATA6603)  
Flash Memory for Application Program  
512 Byte EEPROM and 1 kByte SRAM  
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PD0 PD1 PD7  
EN TXD  
RXD  
Lin Bus  
ATA6602/03  
VS  
ATA6621  
Receiver  
Filter  
LIN  
LIN Output Stage  
Wake-up Bus Timer Slew Rate Control  
Control Unit  
TXD  
Time-out  
Timer  
ATmega88/168  
Microcontroller  
Short-circuit  
Standby Mode  
Silent Mode  
and  
Overtemperature  
Protection  
Wake-up  
Timer  
GND  
Voltage Regulator  
Watchdog  
WD_OSC  
PC6 PD6 ADC7 VDD WAKE VCC TEMP PVCC  
Booster  
 
PTRIG NTRIG NRES  

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