User's Manual

22
Atmel AVR2042
8334A-AVR-05/11
Table of contents
Features ............................................................................................... 1
1 Introduction ...................................................................................... 1
2 Disclaimer ......................................................................................... 2
3 Overview ........................................................................................... 3
4 Mechanical description ................................................................... 5
5 Functional description .................................................................... 6
5.1 Power supply ....................................................................................................... 6
5.2 Microcontroller ..................................................................................................... 6
5.3 Clock sources ...................................................................................................... 7
5.3.1 32kHz crystal oscillator .............................................................................................. 7
5.3.2 Transceiver clock (CLKM) ......................................................................................... 8
5.4 User I/O ............................................................................................................... 8
5.5 Serial flash ......................................................................................................... 10
5.6 UART/USART .................................................................................................... 11
6 Programming .................................................................................. 12
7 Electrical characteristics ............................................................... 14
7.1 Absolute maximum ratings ................................................................................ 14
7.2 Recommended operating range ........................................................................ 14
7.3 Current consumption ......................................................................................... 14
8 Abbreviations ................................................................................. 16
Appendix A – PCB design data ........................................................ 17
A.1 Schematic ..................................................................................................... 17
A.2 Assembly drawing ........................................................................................ 18
A.3 Bill of materials ............................................................................................. 19
EVALUATION BOARD/KIT IMPORTANT NOTICE ........................... 20
References......................................................................................... 21
Table of contents .............................................................................. 22