ATTINY817-MFR. datasheet(16/492 Pages) MICROCHIP

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I/O Multiplexing and Considerations

5.1

Multiplexed Signals

Table 5-1. PORT Function Multiplexing

Pin Name (1,2)

Other/Special

ADC0

PTC(3)

AC0

DAC

USART0

SPI0

TWI0

TCA0

TCB0

TCD0

CCL

PA0

RESET

UPDI

AIN0

LUT0-IN0

PA1

BREAK

AIN1

TXD

MOSI

SDA

LUT0-IN1

PA2

EVOUT0

AIN2

RxD

MISO

SCL

LUT0-IN2

PA3

EXTCLK

AIN3

XCK

SCK

WO3

GND

VDD

PA4

AIN4

X0/Y0

XDIR

WO4

WOA

LUT0-OUT

PA5

AIN5

X1/Y1

OUT

WO5

WOB

PA6

AIN6

X2/Y2

AINN0

OUT

PA7

AIN7

X3/Y3

AINP0

LUT1-OUT

PB7

PB6

PB5

CLKOUT

AIN8

AINP1

WO2

PB4

AIN9

AINN1

WO1

LUT0-OUT

PB3

TOSC1

RxD

WO0

PB2

TOSC2, EVOUT1

TxD

WO2

PB1

AIN10

X4/Y4

XCK

SDA

WO1

PB0

AIN11

X5/Y5

XDIR

SCL

WO0

PC0

SCK

WOC

PC1

MISO

WOD

LUT1-OUT

PC2

EVOUT2

MOSI

PC3

WO3

LUT1-IN0

PC4

BREAK

WO4

LUT1-IN1

PC5

WO5

LUT1-IN2

Note:

Pins names are of type Pxn, with x being the PORT instance (A,B) and n the pin number. Notation

for signals is PORTx_PINn. All pins can be used as event input.

All pins can be used for external interrupt, where pins Px2 and Px6 of each port have full

asynchronous detection.

PTC is only available in devices with 8KB Flash (ATtiny817). Every PTC line can be configured as

X-line or Y-line.

Tip: Signals on alternative pin locations are in typewriter font.

ATtiny417/817

Datasheet Complete

DS40001901B-page 16

ATTINY817-MFR. Datasheet(PDF) 16 Page - Microchip Technology

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