Manufacturer: Microchip Technology
Win Source Part Number: 085452-AT91M42800A-3
Packaging: Tray
Core Processor: ARM7
Number of I/O: 54
Program Memory Type: ROMless
Oscillator Type: External
Family Name: AT91M42800
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: 144-LQFP (20x20)
Speed(Frequency): 33MHz
Supply Voltage - Operating: 2.7 V to 3.6 V
Part Core Size: 16/32-Bit
Data RAM Size: 8K x 8
Alternative Parts (Cross-Reference): MC68331VPV20; MC68331MFV16; SPAKMC331MFV20; SPAKMC331MPV20; MC68VZ328AG; ML675001TC; AT91M42800A-33AI;
Introduction Date: May 02, 1997
ECCN: 3A991.a.2
Country of Origin: Taiwan
Estimated EOL Date: 2026
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 31 pct.
Supply and Demand Status: Limited
ARM7® AT91 Microcontroller IC 16/32-Bit 33MHz ROMless 144-LQFP (20x20)
IC MCU 16/32BIT ROMLESS 144LQFP Product overview: AT91M42800A-33AU from Microchip Technology is an Embedded Microcontroller MCU for industrial control, IoT devices, embedded automation, motor control, metering, and low-power board designs. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 32-bit, 32BIT. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 32-bit, 32BIT, Embedded Microcontroller MCU, Microcontrollers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-AT91M42800A-33AU
IC MCU 16/32BIT ROMLESS 144LQFP
ARM Microcontrollers - MCU 8kB SRAM 33MHz - PWM
ARM7® AT91 Microcontroller IC 16/32-Bit 33MHz ROMless 144-LQFP (20x20)
ARM7® AT91 Microcontroller IC 16/32-Bit 33MHz ROMless 144-LQFP (20x20)
IC MCU 16/32BIT ROMLESS 144LQFP
| Win Source Electronics | DigiKey | ERSAELECTRONICS PTE. LTD. | Shenzhen Shengyu Electronics Technology Limited | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) |
| Product Number | 085452-AT91M42800A-33AU | AT91M42800A-33AU-ND | 685-AT91M42800A-33AU | AT91M42800A-33AU | AT91M42800A-33AU | AT91M42800A-33AU | AT91M42800A-33AU |
| Product Name | Embedded - Embedded - Microcontrollers - AT91M42800A-33AU | Microcontrollers | 32-bit 32BIT Embedded Microcontroller MCU | Integrated Circuits (ICs) - Embedded - Microcontrollers | ARM Microcontrollers - MCU | Microcontrollers | Embedded - Microcontrollers |
| Data Bus | 16 Bit; 32 Bit | 16 Bit; 32 Bit | 32 Bit | 16 Bit; 32 Bit; 16/32-Bit | 16 Bit; 32 Bit; 16/32-Bit | ||
| Life Cycle Stage | Active | Active | Active | ||||
| Clock Speed | 33 MHz | 33 MHz | 33 MHz | 33 MHz | 33 MHz | ||
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | ||
| ROM Type | ROMLess; ROMless | ROMLess |