Datasheet
Table Of Contents
- Features
- 1. Ordering Information
- 2. Pinout/Block Diagram
- 3. Overview
- 4. Resources
- 5. Capacitive touch sensing
- 6. AVR CPU
- 7. Memories
- 8. Event System
- 9. System Clock and Clock options
- 9.1 Features
- 9.2 Overview
- 9.3 Clock Sources
- 9.3.1 32kHz Ultra Low Power Internal Oscillator
- 9.3.2 32.768kHz Calibrated Internal Oscillator
- 9.3.3 32.768kHz Crystal Oscillator
- 9.3.4 0.4 - 16MHz Crystal Oscillator
- 9.3.5 2MHz Run-time Calibrated Internal Oscillator
- 9.3.6 32MHz Run-time Calibrated Internal Oscillator
- 9.3.7 External Clock Sources
- 9.3.8 PLL with 1x-31x Multiplication Factor
- 10. Power Management and Sleep Modes
- 11. System Control and Reset
- 12. WDT – Watchdog Timer
- 13. Interrupts and Programmable Multilevel Interrupt Controller
- 14. I/O Ports
- 15. TC0/1 – 16-bit Timer/Counter Type 0 and 1
- 16. TC2 – Timer/Counter Type 2
- 17. AWeX – Advanced Waveform Extension
- 18. Hi-Res – High Resolution Extension
- 19. RTC – 16-bit Real-Time Counter
- 20. USB – Universal Serial Bus Interface
- 21. TWI – Two-Wire Interface
- 22. SPI – Serial Peripheral Interface
- 23. USART
- 24. IRCOM – IR Communication Module
- 25. CRC – Cyclic Redundancy Check Generator
- 26. ADC – 12-bit Analog to Digital Converter
- 27. AC – Analog Comparator
- 28. Programming and Debugging
- 29. Pinout and Pin Functions
- 30. Peripheral Module Address Map
- 31. Instruction Set Summary
- 32. Packaging information
- 33. Electrical Characteristics TBD
- 34. Typical Characteristics TBD
- 35. Errata
- 36. Datasheet Revision History
- Table of Contents
3
8493A–AVR–02/12
XMEGA C4
2. Pinout/Block Diagram
Figure 2-1. Block diagram and pinout.
Notes: 1. For full details on pinout and alternate pin functions refer to ”Pinout and Pin Functions” on page 52.
2. The large center pad underneath the QFN/MLF package should be soldered to ground on the board to ensure good
mechanical stability.
1
2
3
4
44
43
42
41
40
39
38
5
6
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
37
36
35
34
12
13
14
15
16
17
18
19
20
21
22
PA0
PA1
PA2
PA3
PA4
PB0
PB1
PB3
PB2
PA7
PA6
PA5
GND
VCC
PC0
VDD
GND
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
VCC
GND
PD7
PE0
PE1
PE2
PE3
PDI
PR0
PR1
AVCC
GND
Power
Supervision
Port A
EVENT ROUTING NETWORK
BUS
matrix
SRAM
FLASH
ADC
AC0:1
OCD
Port EPort D
Prog/Debug
Interface
EEPROM
Port C
TC0:1
Event System
Controller
Watchdog
Timer
Watchdog
OSC/CLK
Control
Real Time
Counter
Interrupt
Controller
DATA BUS
DATA BUS
Port R
USART0
TWI
SPI
TC0
USART0
SPI
TC0
USART0
TWI
Port B
AREF
AREF
Sleep
Controller
Reset
Controller
IRCOM
CRC
USB
CPU
Internal
references
Internal
oscillators
XOSC TOSC
RESET_PDI
Digital function
Analog function / Oscillators
Programming, debug, test
External clock / Crystal pins
General Purpose I /O
Ground
Power