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
pin
Functions
Shared functionality
1
VCC
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
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