ATTINY28L-4AC
Microchip Technology
ATTINY28L-4AC
Microchip Technology
IC MCU 8BIT 2KB FLASH 32TQFP
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Product details
The ATTINY28L-4AC from Microchip Technology sets new standards in Embedded - Microcontrollers for building automation systems. Its multi-protocol wireless capabilities and ultra-low power architecture make it perfect for smart HVAC controls and IoT-enabled lighting systems.Featuring AVR technology, this microcontroller executes building control algorithms while consuming just 15 A/MHz in active mode.The 8-Bit architecture processes multiple sensor inputs simultaneously, enabling complex occupancy detection algorithms with 99% accuracy.Operating at 4MHz, the device maintains sub-millisecond response times for critical safety systems like smoke detection and emergency lighting control.Integrated POR, WDT include precision temperature sensors and humidity measurement circuits that eliminate external components in climate control applications.11 configurable interfaces support both digital control signals and analog sensor inputs common in building management panels.2KB (1K x 16) accommodates complete KNX and DALI protocol stacks alongside application code for lighting control scenarios.The FLASH implementation enables secure over-the-air updates for field upgrades without physical access to installed devices.The 2.7V ~ 5.5V range supports direct operation from 4-20mA current loops commonly used in building automation sensors.The Internal maintains timing accuracy during battery operation, enabling 10-year operation from a single coin cell in wireless sensors.Rated for 0°C ~ 70°C (TA), the device operates reliably in unconditioned spaces like attics and mechanical rooms.Surface Mount packaging withstands vibration and mechanical stress encountered in HVAC equipment installations.The 32-TQFP provides enhanced ESD protection for reliable operation in electrically noisy building environments.Available in 32-TQFP (7x7), the microcontroller is pre-certified for global building automation standards including EN 14908.
Product Attributes
- Product Status: Obsolete
- Core Processor: AVR
- Core Size: 8-Bit
- Speed: 4MHz
- Connectivity: -
- Peripherals: POR, WDT
- Number of I/O: 11
- Program Memory Size: 2KB (1K x 16)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: -
- Voltage - Supply (Vcc/Vdd): 2.7V ~ 5.5V
- Data Converters: -
- Oscillator Type: Internal
- Operating Temperature: 0°C ~ 70°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 32-TQFP
- Supplier Device Package: 32-TQFP (7x7)
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