AT91SAM7SE512-AU

AT91SAM7SE512-AU is Atmel/Microchip’s ARM7TDMI-S based microcontroller in the SAM7S family. Key points:
- Core and speed: 32-bit ARM7TDMI-S core, up to around 55 DMIPS, typically running up to ~48–60 MHz.
- Memory: On-chip flash memory of 512 KB and on-chip RAM (tens of KB; commonly ~64 KB).
- USB: Full‑speed USB 2.0 device controller (USB peripherals with integrated PHY).
- Peripherals: Rich set of interfaces (USART/UARTs, SPI, I2C/TWI, timers/PWM, ADC, watchdog, DMA, etc.).
- Low power and peripherals: Various sleep modes for power efficiency; standard microcontroller peripherals for embedded control.
- Package: The –AU suffix denotes the specific package/configuration (commonly a LQFP-type footprint, e.g., 144-pin) used for this device.
- Typical use: USB-enabled embedded applications, industrial controllers, motor control, data acquisition, and other USB-enabled devices.
Development: supported by Atmel Studio/ARM GCC toolchains and the (older) Atmel software ecosystem; datasheet provides exact pinout, memory map, and peripheral details.

Direct equivalents from other vendors: none. The AT91SAM7SE512-AU is a specific Atmel (Microchip) ARM7TDMI MCU. Closest cross-references within the same family are other SAM7 devices with similar memory, e.g., AT91SAM7SE512 and AT91SAM7S512. For a drop-in, verify pinout/package in the datasheet; otherwise consider a different MCU family (e.g., STM32 or LPC) based on your requirements.

Here are the key features of AT91SAM7SE512-AU (compact summary):
- Core: 32-bit ARM7TDMI CPU, up to around 55 MIPS at max clock
- Memory: 512 KB on-chip flash with In-System/In-Application Programming; 128 KB SRAM
- USB: USB 2.0 Full-Speed device (12 Mbps) with on-chip transceiver
- ADC: 12-bit ADC with multiple input channels
- Serial interfaces: multiple USARTs, plus SPI and I2C (TWI)
- Timers/PWM: multiple timer/counter channels and PWM outputs
- DMA: Peripheral DMA/PD C support for data throughput
- External memory: External Bus Interface (EBI) for external RAM/ROM
- Debug/Programming: JTAG for on-chip debugging
- Power and timing: operates from 2.7–3.6 V; temp range typically -40 to 85°C
- Peripherals and I/O: extensive GPIOs (hundreds of I/O lines depending on package)
- Package: AU variant typically in a 100-pin LQFP (per package naming)
Note: exact counts (e.g., number of USARTs, ADC channels) vary by package; refer to the datasheet for precise specifications.

- Pin count: 100 pins (AU package, LQFP-100).
- Function: AT91SAM7SE512-AU is an ARM7TDMI-S based microcontroller for embedded applications, with on-chip flash (512 KB) and RAM, and peripherals such as USB full-speed device controller, multiple serial interfaces (USART/SPI/I2C), timers, and GPIO.

Manufacturer: Atmel Corporation (now part of Microchip Technology). What kind of company: a semiconductor company that designs and manufactures microcontrollers and other integrated circuits.

Applications areas of AT91SAM7SE512-AU include:
- USB-enabled devices and peripherals (USB device, HID, mass storage)
- Industrial automation and process control (remote I/O, PLC-like tasks)
- Data logging, metering, and instrumentation
- Medical and portable diagnostic equipment
- Home automation and smart appliances
- Consumer electronics and handheld controllers
- Small robotics and embedded control systems
The device combines a capable ARM7 core with integrated USB and peripherals, suitable for cost-efficient, compact embedded solutions requiring USB connectivity and real-time control.

208-pin LQFP package (LQFP208).