Microchip Technology AT32UC3A4128S-C1UT
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $34.12 | $34.12 |
| 15+ | $7.85 | $117.75 |
| 25+ | $7.68 | $192.00 |
| 50+ | $7.25 | $362.50 |
| 100+ | $6.40 | $640.00 |
| N+ | $1.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR®32 UC3 A4 |
| Packaging | Tray | NULL |
| Core Processor | AVR |
| Core Size | 32-Bit Single-Core |
| Speed | 66MHz |
| Connectivity | EBI/EMI, I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB OTG |
| Peripherals | Brown-out Detect/Reset, DMA, POR, WDT |
| Number of I/O | 88 |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 128K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.75V ~ 3.6V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 100-VFBGA (7x7) |
| Package / Case | 100-VFBGA |
| ROHS |
The Microchip AT32UC3A4128S-C1UT is a 32-bit AVR MCU running at 66MHz. It provides 128KB flash and 128KB RAM, with a supply range of 1.75V–3.6V. The 100-VFBGA package includes DMA, POR, WDT, and brown-out detection, suited for compact, power-sensitive embedded systems.
- Compact footprint: 100-VFBGA saves board space for miniaturized designs.
- Low power: 1.75V minimum supply extends battery life.
- Balanced memory: Equal flash/RAM (128KB each) supports data-heavy applications.
- Robust supervision: POR, WDT, and brown-out reset enhance reliability.
Portable Instrumentation
The 66MHz AVR core with 128KB RAM enables real-time signal analysis in handheld meters.
Wireless Sensor Nodes
Low-voltage operation (1.75V) and DMA support efficient duty-cycled sensor reading.
Industrial Networking
With 128KB flash, it can run CANopen or Modbus stacks for factory automation.
Consumer Audio Devices
DMA and PWM allow direct digital-to-analog conversion for simple audio playback.
Battery Management Systems
Brown-out detection and WDT ensure safe state monitoring in multi-cell packs.
Embedded Security Modules
The compact VFBGA package fits space-constrained cryptographic token designs.
- Q: What processor core is used?
- A: It uses an AVR 32-bit core running at 66MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.75V to 3.6V.
- Q: How much flash and RAM does it have?
- A: It has 128KB flash and 128KB RAM.
- Q: What package is available?
- A: It comes in a 100-VFBGA package.
- Q: Does it have a watchdog timer?
- A: Yes, it includes WDT, POR, and brown-out detection.
- Q: What processor core is used?
- A: It uses an AVR 32-bit core running at 66MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.75V to 3.6V.
- Q: How much flash and RAM does it have?
- A: It has 128KB flash and 128KB RAM.
- Q: What package is available?
- A: It comes in a 100-VFBGA package.
- Q: Does it have a watchdog timer?
- A: Yes, it includes WDT, POR, and brown-out detection.

AT32UC3A4128S-C1UT.pdf