2 Peripheral Overview
The following table shows the peripheral overview of the entire AVR® EA Family, but further documentation describes only the AVR32EA28/32/48 devices.
Feature |
AVR16EA28 |
AVR16EA32 |
AVR16EA48 |
---|---|---|---|
Pins |
28 |
32 |
48 |
Max. frequency (MHz) | 20 | 20 | 20 |
16-bit Timer/Counter type A (TCA) | 2 | 2 | 2 |
16-bit Timer/Counter type B (TCB) | 4 | 4 | 4 |
Real-Time Counter (RTC) | 1 | 1 | 1 |
USART/SPI host | 3 | 3 | 3 |
SPI host/client | 1 | 1 | 1 |
TWI/I2C | 1(1) | 1(1) | 1(1) |
12-bit differential ADC (channels) | 1 (20) | 1 (24) | 1 (28) |
10-bit DAC | 1 | 1 | 1 |
Analog Comparator (AC) | 2 | 2 | 2 |
Configurable Custom Logic Look-up Table (CCL LUT) | 4 | 4 | 4 |
Watchdog Timer | 1 | 1 | 1 |
Event System channels | 6 | 6 | 6 |
General Purpose I/O pins (input/output (2)) | 24/23 | 28/27 | 42/41 |
PORT |
PA[7:0] |
PA[7:0] |
PA[7:0] |
External interrupts | 24 | 28 | 42 |
CRCSCAN | 1 | 1 | 1 |
Unified Program and Debug Interface (UPDI) | 1 | 1 | 1 |
- The TWI/I2C can operate simultaneously as a host and client on different pins.
- PF6/RESET pin is input only.