APPLICATION NOTE ATAK43001-V1 Development Kit for the ATA664251 Atmel IC Atmel ATAN0063 Introduction The development kit for the Atmel ATA664251 IC consists of the PC interface board (ATAB0004A-V2.0) and the Atmel ATA664251 application board (ATAB664251A-V1.0) attached together as one unit. The kit provides users with a quick start guide for prototyping and testing new LIN designs with the Atmel ATA664251 IC. Figure 1. Atmel ATAK43001-V1 Development Kit The Atmel ATA664251 is a system-in-package (SiP) product, which is especially well suited for complete LIN-bus node applications. It is designed specifically for LIN switch applications and includes nearly the complete LIN node. It consists of two ICs in one pack- age supporting highly integrated solutions for in-vehicle LIN networks. The first chip is the ATA664151 LIN system basis chip (SBC), which has an integrated LIN transceiver, a 5V regulator (80mA), a window watchdog, an 8-channel high voltage switch interface with high-voltage current sources and a 16-bit SPI for configuration and diagnosis. The second chip is an Atmel automotive microcontroller from the AVR 8-bit microcontroller series featuring advanced RISC architecture, the Atmel ATtiny167 with 16 Kbytes of Flash memory. All the LIN SBC pins as well as all the AVR microcontroller pins are bonded out to provide customers with the same flexibility for their applications they have when using discrete parts. 9300CAUTO03/13 The Atmel LIN SBC ATA664251 has the following features: SBC: LIN master and slave operation possible Up to 40V supply voltage Operating voltage V = 5V to 27V S 8-channel HV switch interface with HV current sources Internal voltage divider for VBattery sensing (2%) 16-bit serial interface (daisy-chain-capable) for configuration and diagnosis Typically 8A supply current during sleep mode Typically 35A supply current in active low-power mode 5V 2% linear low-drop voltage regulator, up to 80mA current capability VCC undervoltage detection (5ms reset time) and watchdog reset logical combined at NRES open drain output LIN high-speed mode for transmission rates up to 200kBit/s Watchdog timer adjustable via external resistor Negative trigger input for watchdog LIN physical layer complies with LIN 2.1 specification and SAE J2602-2 Wake-up capability via LIN bus and CL15 Bus pin is overtemperature and short-circuit protected versus GND and battery Advanced EMC and ESD performance System-level ESD performance conforming with OEM Hardware Requirements for LIN in Automotive Applications Rev. 1.2 3x PWM inputs for direct control of the switch interface sources AVR microcontroller: High-performance, low-power AVR 8-bit microcontroller Advanced RISC architecture 123 powerful instructions - in most cases single clock cycle execution 32 8 general purpose working registers Fully static operation Non-volatile program and data memories 16 Kbytes of in-system programmable (ISP) program memory flash Endurance: 10,000 write/erase cycles 512 bytes in-system programmable EEPROM Endurance: 100,000 write/erase cycles 512 bytes internal SRAM Programming lock for self-programming Flash program and EEPROM data security Peripheral features LIN 2.1 and LIN 1.3 controller or 8-bit UART 8-bit asynchronous timer/counter0 10-bit clock prescaler One output compare or 8-bit PWM channel 16-bit synchronous timer/counter1 10-bit clock prescaler External event counter Two output compare units or 16-bit PWM channels each driving up to four output pins Atmel ATAN0063 APPLICATION NOTE 2 9300CAUTO03/13