Microchip Technology AVR16LA Microcontrollers (MCUs)
Microchip Technology AVR16LA Microcontrollers (MCUs) integrate an AVR CPU and a hardware multiplier and run at clock speeds up to 20MHz. These MCUs incorporate 16kB of flash memory, 2kB of SRAM, and 512 bytes of EEPROM. The AVR16LA MCUs feature a flexible and low-power architecture that includes an Event System, accurate analog subsystems, advanced digital peripherals, and a peripheral touch controller. These MCUs are available in 14-, 20-, 28-, and 32-pin packages. Typical applications include wearable devices, consumer electronics, home automation, industrial and medical devices, battery-powered sensors, and automotive HMI.
Features
- AVR CPU:
- Running at up to 20MHz
- Single-cycle I/O register access
- Two-level interrupt controller
- Two-cycle hardware multiplier
- Program and Debug Interface Disable (PDID)
- 1.62V to 5.5V supply voltage range
- System:
- Power-On Reset (POR) circuit
- Brown-out Detector (BOD) with user-programmable levels
- Voltage Level Monitor (VLM) with an interrupt at a programmable level above the BOD level
- Clock options:
- High-precision internal oscillator with a selectable frequency of up to 20MHz (OSCHF):
- Auto-tuning for improved internal oscillator accuracy
- Internal ultra-low power 32.768kHz oscillator (OSC32K)
- External 32.768kHz crystal oscillator (XOSC32K)
- External clock input
- High-precision internal oscillator with a selectable frequency of up to 20MHz (OSCHF):
- Single-pin Unified Program and Debug Interface (UPDI)
- Three sleep modes:
- Idle mode, with all peripherals running for immediate wake-up
- Standby mode, with configurable operation of the selected peripherals
- Power-Down mode, with full data retention
- Memories:
- 6KB In-System Programmable (ISP) Flash memory with true read-while-write operation
- 2KB SRAM
- 512B EEPROM
- 64B of User Row in nonvolatile memory that can retain data during a chip erase and be programmed while the device is locked
- 64B of Boot Row in nonvolatile memory, accessible only when running from the boot section
- Write/erase endurance:
- 10,000 flash cycles
- 100,000 EEPROM cycles
- 40 years data retention at 55°C
- I/O packages:
- 12 to 28 programmable I/O pins
- 14-pin SOIC and TSSOP
- 20-pin SSOP and VQFN 3x3 with wettable flanks
- 28-pin SSOP, SPDIP, and VQFN 4x4 with wettable flanks
- 32-pin TQFP 7x7 and VQFN 5x5 with wettable flanks
- Temperature ranges:
- -40°C to +85°C ambient industrial
- -40°C to +125°C ambient extended
Applications
- Wearable devices:
- Smart watches
- Fitness bands
- Health monitors
- Industrial and medical devices
- Battery-powered sensors for IoT devices and key fobs
- Automotive Human-Machine Interface (HMI)
- Consumer electronics:
- Remote controls
- Headphones
- Earbuds
- Home automation:
- Touch panels
- Smart appliances
Block Diagram
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