ATTINY3216

Part: ATtiny3216/3217 Automotive — Microchip Technology Type: AVR Microcontroller Description: The ATtiny3216/3217 Automotive are tinyAVR 1-series microcontrollers featuring an AVR CPU running at up to 16 MHz, with 32 KB Flash, 2 KB SRAM, and 256 bytes EEPROM, supporting capacitive touch interfaces.

Operating Conditions:

• Supply voltage: 2.7–5.5V (for 0-8 MHz operation); 4.5–5.5V (for 0-16 MHz operation)
• Operating temperature: -40 to 105 °C or -40 to 125 °C
• Max CPU frequency: 16 MHz

Absolute Maximum Ratings:

Key Specs:

• Flash memory: 32 KB
• SRAM: 2 KB
• EEPROM: 256 bytes
• Flash write/erase endurance: 10,000 cycles
• EEPROM write/erase endurance: 100,000 cycles
• Data retention: 40 years at 55°C
• ADC resolution: 10-bit
• DAC resolution: 8-bit
• TWI (I2C) speeds: 100 kHz (Standard mode), 400 kHz (Fast mode), 1 MHz (Fast mode plus)

Features:

• AVR CPU with hardware multiplier and two-level interrupt controller
• Event System for CPU independent inter-peripheral signaling
• Core Independent Peripherals (CIPs) including TCA, TCB, TCD, RTC, WDT
• USART, SPI, and TWI (I2C compatible) interfaces
• Analog Comparators (AC), Analog-to-Digital Converters (ADCs), and Digital-to-Analog Converters (DACs)
• Peripheral Touch Controller (PTC) with Driven Shield+ and Boost Mode for capacitive touch
• Configurable Custom Logic (CCL)
• Single-Pin Unified Program and Debug Interface (UPDI)
• Multiple sleep modes: Idle, Standby, Power-Down
• Up to 22 programmable I/O lines

Applications:

Package:

• 20-pin SOIC300
• 24-pin VQFN 4x4 mm with wettable flanks

• CPU
• -AVR ® CPU
• -Running at up to 16 MHz
• -Single-cycle I/O access
• -Two-level interrupt controller
• -Two-cycle hardware multiplier
• Memories
• -32 KB In-system self-programmable Flash memory
• -256 bytes EEPROM
• -2 KB SRAM
• -Write/erase endurance:
• Flash 10,000 cycles
• EEPROM 100,000 cycles
• -Data retention:
• 40 years at 55°C
• System
• -Power-on Reset (POR)
• -Brown-out Detector (BOD)
• -Clock options:
• 16 MHz low-power internal RC oscillator
• 32.768 kHz Ultra Low-Power (ULP) internal RC 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 for immediate wake-up
• Standby
• -Configurable operation of selected peripherals
• Power-Down with full data retention
• Peripherals

This bit field selects the Reset/UPDI pin configuration.

Note: When configuring the RESET pin as GPIO, there is a potential conflict between the GPIO actively driving the output, and a high-voltage UPDI enable sequence initiation. To avoid this, the GPIO output driver is disabled for 768 OSC32K cycles after a System Reset. Enable any interrupts for this pin only after this period.