AT90PWM2 datasheet(6/361 Pages) ATMEL

6 / 361 page

4317J–AVR–08/10

AT90PWM2/3/2B/3B

1. PSCOUT10 & PSCOUT11 are not present on 24 pins package

Overview

The AT90PWM2/2B/3/3B 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

AT90PWM2/2B/3/3B achieves throughputs approaching 1 MIPS per MHz allowing the system

designer to optimize power consumption versus processing speed.

PD0

I/O

PSCOUT00 output

XCK (UART Transfer Clock)

SS_A (Alternate SPI Slave Select)

PD1

I/O

PSCIN0 (PSC 0 Digital Input )

CLKO (System Clock Output)

451

PD2

I/O

PSCIN2 (PSC 2 Digital Input)

OC1A (Timer 1 Output Compare A)

MISO_A (Programming & alternate SPI Master In Slave Out)

562

PD3

I/O

TXD (Dali/UART Tx data)

OC0A (Timer 0 Output Compare A)

SS (SPI Slave Select)

MOSI_A (Programming & alternate Master Out SPI Slave In)

PD4

I/O

ADC1 (Analog Input Channel 1)

RXD (Dali/UART Rx data)

ICP1A (Timer 1 input capture)

SCK_A (Programming & alternate SPI Clock)

PD5

I/O

ADC2 (Analog Input Channel 2)

ACMP2 (Analog Comparator 2 Positive Input )

PD6

I/O

ADC3 (Analog Input Channel 3 )

ACMPM reference for analog comparators

INT0

PD7

I/O

ACMP0 (Analog Comparator 0 Positive Input )

PE0

I/O or I

RESET (Reset Input)

OCD (On Chip Debug I/O)

PE1

I/O

XTAL1: XTAL Input

OC0B (Timer 0 Output Compare B)

PE2

I/O

XTAL2: XTAL OuTput

ADC0 (Analog Input Channel 0)

Table 3-1.

Pin out description (Continued)

S024 Pin

Number

SO32 Pin

Number

QFN32 Pin

Number

Mnemonic

Type

Name, Function & Alternate Function

AT90PWM2 Datasheet(PDF) 6 Page - ATMEL Corporation

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