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Low Cost, Power Savvy Communication Keep Systems Running
Controller Area Network (CAN) networking is widely used in electronic architectures for today’s modern vehicles. Atmel® offers a wide range of solutions for CAN networking, including AVR 8-bit RISC microcontrollers and transceivers. Atmel Flash-based microcontrollers are compliant with V2.0A and V2.0B of the CAN protocol, and offer flexible in-system programming capabilities.
Atmel also offers a variety of Vehicle Area Network (VAN)-compliant controllers.
Key Features
- In-system programming (ISP) — Using a simple three-wire SPI interface to communicate with the AVR microcontroller, you can program and reprogram all non-volatile memories on the chip. ISP eliminates the need to remove the chip from the system, saving you time and money during development and when updating software or parameters in the field.
- Standards-based — Atmel in-vehicle network components are fully compliant with strict automotive networking standards for safety, reliability such as CAN protocol V2.0A/V2.0B standard and the VAN ISO Standard 11519-3.
- Valuable debug tools — On-chip JTAG debug provides non-intrusive, full access to CAN device registers, peripherals and code execution. Combined with Atmel JTAGICE mkII and the AVR Studio® software, designers can take complete control of the internal resources of the microcontroller, simplifying debug and speeding time to market.
CAN/VAN Networking Devices
| Device Family |
Summary Benefit |
Applications |
Technologies |
Key Parameters |
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Independent message objects handling
Flexible In-system programming (ISP) |
Vehicle electronics communication |
CAN V2.0A/V2.0B-compliant |
CANopen
DeviceNet
OSEK
JTAG debug |
Atmel AVR-based microcontrollers deliver a robust combination of rich features, rugged design options, and standards-based CAN connectivity for automotive applications. AT90CAN32/64/128
The AT90CAN32/64/128 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. Executing powerful instructions in a single clock cycle, the AT90CAN32/64/128 achieves throughputs approaching 1 MIPS per MHz, enabling developers to optimize power consumption versus processing speed. Designed for challenging automotive environments, the AT90CAN32/64/128 have been developed and manufactured according to the most stringent requirements of the international standard ISO-TS-16949 grade 1. Features include: - High-performance, Low-power AVR® 8-bit Microcontroller
- Advanced RISC Architecture
- Non volatile Program and Data Memories with up to 128K Bytes of in-system reprogrammable Flash
- CAN Controller 2.0A & 2.0B - ISO 16845 Certified
ATmega16/32/64/M1/C1
The ATmega16/32/64/M1/C1 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, these devices achieve throughputs approaching 1 MIPS per MHz, to enable developers to optimize power consumption versus processing speed. The ATmega16/32/64/M1/C1 have been developed and manufactured according to the most stringent requirements of the international standard ISO-TS-16949. Features include: - High Performance, Low Power AVR® 8-bit Microcontroller
- Advanced RISC Architecture
- Data and Non-Volatile Program Memory
- Endurance: 10,000 Write/Erase Cycles
- CAN 2.0A/B with 6 Message Objects - ISO 16845 Certified
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VAN datalink controllers |
Interconnect anti-lock brake systems, dashboard, and power train controls and interconnect car body electronics such as lights, wipers, and power windows. |
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Serial interface
Up to 16 inputs-outputs |
Cost optimization in critical for today’s automotive manufacturing. To help control expenses, developers must employ advanced, standards-based electronic circuits. Atmel offers a variety of controllers that are compliant with the Vehicle Area Network (VAN) standard.
Atmel VAN Controllers allow the transfer of all the status information needed in a car or truck over a single low-cost wire pair, thereby, minimizing the electrical wire usage. They can be used to interconnect powerful functions (ABS, dashboard, power train control) and to control and interface car body electronics (lights, wipers, power window, etc.).
These controllers are manufactured using 0.5 micron CMOS technology. They are fully compliant with the ISO standard 11519-3. This standard supports a wide range of applications such as low-cost remote control switches, typically used for lamp control; complex, highly-autonomous, distributed systems like engine controls, which require fast, secure data transfers.
Features include: - Fully compliant to VAN specification ISO/11519.3
- Handles all specified module and message types
- Handles retransmission of frames on contention and errors
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