Datasheet

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