5

4378CS–AVR–09/08

AT90PWM1

4.

Overview

The AT90PWM1 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 AT90PWM1 achieves

throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power con-

sumption versus processing speed.

12

12

PD4

I/O

ADC1 (Analog Input Channel 1)

RXD (Dali/UART Rx data)

ICP1A (Timer 1 input capture)

SCK_A (Programming & alternate SPI Clock)

13

13

PD5

I/O

ADC2 (Analog Input Channel 2)

ACMP2 (Analog Comparator 2 Positive Input )

14

14

PD6

I/O

ADC3 (Analog Input Channel 3 )

ACMPM reference for analog comparators

INT0

15

15

PD7

I/O

ACMP0 (Analog Comparator 0 Positive Input )

31

2

PE0

I/O or I

RESET (Reset Input)

OCD (On Chip Debug I/O)

10

10

PE1

I/O

XTAL1: XTAL Input

OC0B (Timer 0 Output Compare B)

11

11

PE2

I/O

XTAL2: XTAL OuTput

ADC0 (Analog Input Channel 0)

Table 3-1.

Pin out description (Continued)

QFN32

S024 Pin Number

Mnemonic

Type

Name, Function & Alternate Function