User manual

4. Hardware User Guide

4.1. Connectors

4.1.1. ATtiny104 Xplained Nano Pin-Out

The ATtiny104 Xplained Nano has a direct fan-out of the I/O pins of the device and all I/O's are accessible

at the edge connectors.

Table 4-1. Edge Connector

Edge

connector

ATtiny104

Functions Shared functionality

1 V

Power supply

2 PA[0] PCINT0/ADC0/AIN0/T0/CLKI/TPICLK mEDBG TPI Clock

3 PA[1] PCINT1/ADC1/AIN1/OC0B/TPIDATA mEDBG TPI Data

4 PA[2] PCINT2/RESET mEDBG Reset

5 PA[3] PCINT3/OC0A

6 PA[4] PCINT4/ICP0

7 PA[5] PCINT5/ADC2/OC0B User LED

8 PA[6] PCINT6/ADC3

9 PA[7] PCINT7

10 PB[0] PCINT8/ADC4

11 PB[1] PCINT9/INT0/ADC5/XCK0/OC0A/CLKO User button

12 PB[2] PCINT10/ADC6/TxD0/ICP0 mEDBG CDC RX

13 PB[3] PCINT11/ADC7/ACO/RxD0/T0 mEDBG CDC TX

14 GND Ground

4.2. Current Measurement

The power to the target controller ATtiny104 is connected from the VREG supply to the targets VCC

supply with a 0Ω resistor as shown in the figure below. To measure the power consumption of the device,

remove the 0Ω resistor and replace it with an ammeter. The ammeter can be connected between the

VREG and VCC pads for easy measurement.

Tip: To connect the two power domains again, solder in a 0Ω resistor on the footprint or a 100-

mil header on the header footprint at the edge of the board and place a jumper between VREG

and VCC.

Atmel ATtiny104 Xplained Nano [USER GUIDE]

Atmel-42671A-ATtiny104-Xplained-Nano_User Guide-02/2016