2 Peripheral Overview

The following table shows the peripheral overview of the entire AVR® DB family, but the further documentation describes only the AVR32DB28/32/48 devices.

Table 2-2. Peripheral Overview
Feature

AVR32DB28
AVR64DB28
AVR128DB28

AVR32DB32
AVR64DB32
AVR128DB32

AVR32DB48
AVR64DB48
AVR128DB48

AVR64DB64
AVR128DB64

Pins28324864
Max. frequency (MHz) 24 24 24 24
16-bit Timer/Counter type A (TCA)1122
16-bit Timer/Counter type B (TCB)3345
12-bit Timer/Counter type D (TCD)1111
Real-Time Counter (RTC)1111
USART3356
SPI2222
TWI/I2C1(1)2(1)2(1)2(1)
12-bit differential ADC (channels)1 (9)1 (13)1 (18)1 (22)
10-bit DAC (outputs)1 (1)1 (1)1 (1)1 (1)
Analog Comparator (AC)3333
Zero-Cross Detector (ZCD)1123
Peripheral Touch Controller (PTC)--- -
Op amp (OP)2233
Configurable Custom Logic Look-up Table (CCL LUT)4466
Watchdog Timer (WDT)1111
Event System channels (EVSYS)881010
General Purpose I/O(2)22/21(2)26/25(2)41/40(2)55/54(2)
PORTPA[7:0], PC[3:0], PD[7:1], PF[6,1,0]PA[7:0], PC[3:0], PD[7:1], PF[6:0]PA[7:0], PB[5:0], PC[7:0], PD[7:0], PE[3:0], PF[6:0]PA[7:0], PB[7:0], PC[7:0], PD[7:0], PE[7:0], PF[6:0], PG[7:0]
External Interrupts22264155
CRCSCAN1111
Unified Program and Debug Interface (UPDI)1111
Note:
  1. The TWI/I2C can operate simultaneously as host and client on different pins.
  2. PF6/RESET pin is input only.