AT91SAM7L series is an ARM7TDMI® ARM® Thumb® microcontroller with 128K/64K byte internal high-speed flash memory, 6K byte high-speed SRAM, memory controller, reset controller, clock generator and other important modules. It is suitable for low-power, high-performance and multi-functional microcontroller applications.
The AT91SAM7L64 is a low‑power member of Atmel’s Smart ARM Microcontroller family, featuring an ARM7TDMI® core, up to 36 MHz operation, and a range of on‑chip peripherals such as USART, SPI, timers, ADC, and a segment LCD controller. It includes 64 KB of high‑speed flash, 6 KB of SRAM, and multiple power‑saving modes for battery‑operated applications.
The device is offered in a 128‑lead LQFP package (20 × 14 mm, 0.5 mm pitch) and a 144‑ball LFBGA package (10 × 10 mm, 0.8 mm pitch), with industrial temperature support from –40 °C to 85 °C. Ordering codes differentiate package type and temperature grade, and the document lists pin‑out, signal descriptions, and programming interfaces.
| Flash memory size | 64 KB |
|---|---|
| SRAM size | 6 KB |
| Core frequency | Up to 36 MHz |
| Active mode current consumption | <30 mA at 36 MHz |
| Backup mode current consumption | 100 nA |
| Operating temperature range | -40 °C to 85 °C |
| Package options | 128‑lead LQFP (0.5 mm pitch) or 144‑ball LFBGA (0.8 mm pitch) |
The AT91SAM7L64 contains 64 KB of high‑speed flash memory.
It is offered in a 128‑lead LQFP package (0.5 mm pitch) and a 144‑ball LFBGA package (0.8 mm pitch).
The microcontroller can run up to 36 MHz.
In backup mode the device consumes about 100 nA.