2

7679BS–CAN–11/06

AT90CAN32/64/128

– On-chip Analog Comparator

– Byte-oriented Two-wire Serial Interface

– Dual Programmable Serial USART

– Master/Slave SPI Serial Interface

• Programming Flash (Hardware ISP)

– Power-on Reset and Programmable Brown-out Detection

– Internal Calibrated RC Oscillator

– 8 External Interrupt Sources

– 5 Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down & Standby

– Software Selectable Clock Frequency

– Global Pull-up Disable

– 53 Programmable I/O Lines

– 64-lead TQFP and 64-lead QFN

– 2.7 - 5.5V

– Industrial (-40°C to +85°C)

– 8 MHz at 2.7V - Industrial range

– 16 MHz at 4.5V - Industrial range

1.

Description

1.1

Comparison Between AT90CAN32, AT90CAN64 and AT90CAN128

AT90CAN32, AT90CAN64 and AT90CAN128 are all hardware and software compatible with

each other, the only difference is the memory size.

1.2

Part Desription

The AT90CAN32/64/128 is a low-power CMOS 8-bit microcontroller based on the AVR

enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the

AT90CAN32/64/128 achieves throughputs approaching 1 MIPS per MHz allowing the system

designer to optimize power consumption versus processing speed.

The AVR core combines a rich instruction set with 32 general purpose working registers. All 32

registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent

registers to be accessed in one single instruction executed in one clock cycle. The resulting

architecture is more code efficient while achieving throughputs up to ten times faster than con-

ventional CISC microcontrollers.

Table 1-1.

Memory Size Summary

Device

Flash

EEPROM

RAM

AT90CAN32

32K Bytes

1K Byte

2K Bytes

AT90CAN64

64K Bytes

2K Bytes

4K Bytes

AT90CAN128

128K Bytes

4K Byte

4K Bytes