ATTINY3217-MFR

The ATtiny3216/3217 Automotive are members of the tinyAVR 1- series of microcontrollers, using the AVR processor with hardware multiplier, running at up to 16 MHz, with 32 KB Flash, 2 KB of SRAM, and 256 bytes of EEPROM in a 20- or 24- pin package. The tinyAVR 1- series uses the latest technologies with a flexible, low- power architecture, including Event System, accurate analog features, and Core Independent Peripherals (CIPs). Capacitive touch interfaces with Driven Shield+ and Boost Mode technologies are supported with the integrated Peripheral Touch Controller (PTC).

Key features

• 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：
• One 16-bit Timer/Counter type A (TCA) with a dedicated period register and three compare channels
• Two 16-bit Timer/Counter type B (TCB) with input capture
• One 12-bit Timer/Counter type D (TCD) optimized for control applications
• One 16-bit Real-Time Counter (RTC) running from an external crystal, external clock, or internal RC oscillator
• Watchdog Timer (WDT) with Window mode, with a separate on-chip oscillator
• One USART with fractional baud rate generator, auto-baud, and start-of-frame detection
• One master/slave Serial Peripheral Interface (SPI)
• One Two-Wire Interface (TWI) with dual address match
• Philips I²C compatible
• Standard mode (Sm, 100 kHz)
• Fast mode (Fm, 400 kHz)
• Fast mode plus (Fm+, 1 MHz)
• Three Analog Comparators (AC) with a low propagation delay
• Two 10-bit 115 ksps Analog-to-Digital Converters (ADCs)
• Three 8-bit Digital-to-Analog Converters (DACs) with one external channel
• Multiple voltage references (VREF): 0.55V, 1.1V, 1.5V, 2.5V, 4.3V
• Event System (EVSYS) for CPU independent and predictable inter-peripheral signaling
• Configurable Custom Logic (CCL) with two programmable look-up tables
• Automated CRC memory scan
• Peripheral Touch Controller (PTC)
• Capacitive touch buttons, sliders, wheels and 2D surfaces
• Wake-up on touch
• Driven shield for improved moisture and noise handling performance
• Up to 14 self-capacitance channels
• Up to 49 mutual capacitance channels
• External interrupt on all general purpose pins
• I/O and Packages：
• Up to 22 programmable I/O lines
• 20- pin SOIC300
• 24- pin VQFN 4x4 mm with wettable flanks
• Temperature Ranges：
• -40°C to 105°C
• -40°C to 125°C
• Speed Grades：
• 0 - 8 MHz @ 2.7V - 5.5V
• 0 - 16 MHz @ 4.5V - 5.5V