2 Peripheral Overview

Table 2-2. Peripheral Overview

        Device

        ATtiny1624

        ATtiny1626

        ATtiny1627

Pins142024
PackageSOIC, TSSOPSOIC, SSOP,VQFNVQFN
Maximum frequency (MHz)202020
General purpose I/O121822
PORT

PA[7:0]
PB[3:0]

PA[7:0]
PB[5:0]
PC[3:0]

PA[7:0]
PB[7:0]
PC[5:0]

External interrupts121822
Event system channels666
CCL LUTs444
Real-Time Counter (RTC)111
16-bit Timer/Counter type A (TCA)111
16-bit Timer/Counter type B (TCB)222
12-bit Timer/Counter type D (TCD)---
USART/SPI host222
SPI111
TWI (I2C)111
ADC (channels)1 (9)1 (15)1 (15)
DAC ---
Analog Comparators (inputs)1 (2p/2n)1 (3p/3n)1 (4p/3n)
Peripheral Touch Controller (PTC) (self cap/mutual cap channels)---
Unified Program and Debug Interface (UPDI) activated by shared pin using high-voltage signal or fuse override111