AT90PWM3 datasheet(9/365 Pages) ATMEL | 8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Part No.	AT90PWM3

Description	8-bit Microcontroller with 8K Bytes In-System Programmable Flash

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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AT90PWM2/3

4317B–AVR–02/05

with DALI mode, an 11-channel 10-bit ADC with two differential input stage with pro-

grammable gain, a 10-bit DAC, a programmable Watchdog Timer with Internal

Oscillator, an SPI serial port, an On-chip Debug system and four software selectable

power saving modes.

The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI ports and

interrupt system to continue functioning. The Power-down mode saves the register con-

tents but freezes the Oscillator, disabling all other chip functions until the next interrupt

or Hardware Reset. The ADC Noise Reduction mode stops the CPU and all I/O modules

except ADC, to minimize switching noise during ADC conversions. In Standby mode,

the Crystal/Resonator Oscillator is running while the rest of the device is sleeping. This

allows very fast start-up combined with low power consumption.

The device is manufactured using Atmel’s high-density nonvolatile memory technology.

The On-chip ISP Flash allows the program memory to be reprogrammed in-system

through an SPI serial interface, by a conventional nonvolatile memory programmer, or

by an On-chip Boot program running on the AVR core. The boot program can use any

interface to download the application program in the application Flash memory. Soft-

ware in the Boot Flash section will continue to run while the Application Flash section is

updated, providing true Read-While-Write operation. By combining an 8-bit RISC CPU

with In-System Self-Programmable Flash on a monolithic chip, the Atmel AT90PWM2/3

is a powerful microcontroller that provides a highly flexible and cost effective solution to

many embedded control applications.

The AT90PWM2/3 AVR is supported with a full suite of program and system develop-

ment tools including: C compilers, macro assemblers, program debugger/simulators, in-

circuit emulators, and evaluation kits.

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