ATtiny1624/1626/1627 Product Brief Introduction The ATtiny1624/1626/1627 microcontrollers of the tinyAVR 2 family are using the AVR CPU with hardware multiplier, running at up to 20 MHz, with 16 KB Flash, 2 KB of SRAM, and 256B of EEPROM available in a 14-, 20-, and 24-pin package. The family uses the latest technologies from Microchip with a flexible and low-power architecture, including Event System and SleepWalking, advanced digital peripherals, and accurate analog features such as a 12-bit differential ADC with Programmable Gain Amplifier (PGA). Features High-Performance Low-Power AVR CPU Running at up to 20 MHz Single-cycle I/O access Two-level interrupt controller with vectored interrupts Two-cycle hardware multiplier Supply voltage range: 1.8V to 5.5V Memories 16 KB In-System self-programmable Flash memory 2 KB SRAM 256B EEPROM 32B of user row in nonvolatile memory that can keep data during chip-erase and be programmed while the device is locked Write/erase endurance Flash 10,000 cycles EEPROM 100,000 cycles Data retention: 40 years at 55C System Power-on Reset (POR) Brown-out Detection (BOD) Clock options Lockable 20 MHz Low-Power internal oscillator 32.768 kHz Ultra Low-Power (ULP) internal oscillator 32.768 kHz external crystal oscillator External clock input Single-pin Unified Program and Debug Interface (UPDI) Three sleep modes Idle with all peripherals running and immediate wake-up time Standby Configurable operation of selected peripherals SleepWalking peripherals Power-Down with full data retention Product Brief DS40002203A-page 1 2020 Microchip Technology Inc. ATtiny1624/1626/1627 Peripherals One 16-bit Timer/Counter type A (TCA) with a dedicated period register and three PWM channels Two 16-bit Timer/Counter type B (TCB) with input capture and simple PWM functionality One 16-bit Real-Time Counter (RTC) running from external 32.768 kHz crystal or internal 32.768 kHz ULP oscillator Two Universal Synchronous Asynchronous Receiver Transmitter (USART) with fractional baud rate generator, auto-baud, and start-of-frame detection Master/Slave Serial Peripheral Interface (SPI) Master/Slave Two-Wire Interface (TWI) with dual address match Standard mode (Sm, 100 kHz) Fast mode (Fm, 400 kHz) Fast mode plus (Fm+, 1 MHz) Event System for CPU independent and predictable inter-peripheral signaling Configurable Custom Logic (CCL) with four programmable Look-Up Tables (LUT) One Analog Comparator (AC) with scalable reference input One 12-bit differential 375 ksps Analog-to-Digital Converter (ADC) with Programmable Gain Amplifier (PGA) and up to 15 input channels Multiple internal voltage references 1.024V 2.048V 2.500V 4.096V VDD Automated Cyclic Redundancy Check (CRC) flash memory scan Watchdog Timer (WDT) with Window Mode, with a separate on-chip oscillator External interrupt on all general purpose pins I/O and Packages Up to 22 programmable I/O pins 14-pin SOIC150 TSSOP 20-pin SOIC300 SSOP VQFN 3x3 mm 24-pin VQFN 4x4 mm Temperature Ranges -40C to 85C (standard) -40C to 125C (extended) Speed Grades (-40C to 85C) 0-5 MHz 1.8V 5.5V 0-10 MHz 2.7V 5.5V 0-20 MHz 4.5V 5.5V Speed Grades (-40C to 125C) 0-8 MHz 2.7V - 5.5V 0-16 MHz 4.5V - 5.5V DS40002203A-page 2 Product Brief 2020 Microchip Technology Inc.