4.
Hardware User Guide
4.1
Connectors
4.1.1
ATtiny1627 Curiosity Nano Pinout
All the ATtiny1627 I/O pins are accessible at the edge connectors on the board. The image below shows the board
pinout. For all available functions on each pin, refer to the I/O Multiplexing and Considerations section in the
ATtiny1627 data sheet.
Figure 4-1. ATtiny1627 Curiosity Nano Pinout
USB
DEBUGGER
ATtiny1627
SW0
LED0
PS LED
NC
NC
ID
ID
CDC RX
CDCRX
USART0 TX
PB2
CDC TX
CDCTX
USART0 RX
PB3
DBG1
DBG1
PB7
LED0
DBG2
DBG2
PC4
SW0
PA1
P
A
1
USART[0/1] TX
PA2
P
A
2
USART[0/1] RX
PB1
PB1
TWI0 SDA
PB0
PB0
TWI0 SCL
PC2
PC2
SPI0 MOSI
PC1
PC1
SPI0 MISO
PC0
PC0
SPI0 SCK
PC3
PC3
SPI0 SS
GND
GND
PB2
PB2
USART0 TX
(TOSC2)
PB3
PB3
USART0 RX
(TOSC1)
VBUS
VB
U
S
VOFF
V
O
FF
DBG3
DBG3
DBG0
DBG0
PA0
UPDI
GND
GND
VTG
VT
G
PB6
PB6
PB5
PB5
AIN8
PB4
PB4
AIN9
TCA0 WO1
PA3
P
A
3
AIN3
TCA0 WO3
PA4
P
A
4
AIN4
TCA0 WO4
PA5
P
A
5
AIN5
PA6
P
A
6
AIN6
PA7
P
A
7
AIN7
GND
GND
PC5
PC5
PC4
PC4
SW0
DEBUGGER
ATtiny1627
Analog
Debug
I2C
SPI
UART
Peripheral
Port
PWM
Power
Ground
Shared pin
ATtiny1627
Curiosity Nano
4.1.2
Using Pin Headers
The edge connector footprint on ATtiny1627 Curiosity Nano has a staggered design where each hole is shifted 8 mil
(~0.2 mm) off-center. The hole shift allows the use of regular 100 mil pin headers on the board without soldering.
Once the pin headers are firmly in place, they can be used in normal applications like pin sockets and prototyping
boards without any issues.
Tip:
Start at one end of the pin header and gradually insert the header along the length of the board.
Once all the pins are in place, use a flat surface to push them in.
Tip:
For applications where the pin headers will be used permanently, it is still recommended to solder
them in place.
ATtiny1627
Hardware User Guide
©
2020 Microchip Technology Inc.
User Guide
DS40002199A-page 24
