AT91SAM7S64-AU

Product Summary

The AT91SAM7S64-AU is a low pincount Flash microcontroller. based on the 32-bit ARM RISC processor. The AT91SAM7S64-AU features a 64 Kbyte high-speed Flash and a 16 Kbyte SRAM, a large set of peripherals, including a USB 2.0 device, and a complete set of system functions minimizing the number of external components. The AT91SAM7S64-AU is an ideal migration path for 8-bit microcontroller users looking for additional performance and extended memory. The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or via a parallel interface on a production programmer prior to mounting. Built-in lock bits and a security bit protect the firmware from accidental overwrite and preserves its confidentiality. The AT91SAM7S64-AU includes a reset controller capable of managing the power-on sequence of the microcontroller and the complete system. Correct device operation can be monitored by a built-in brownout detector and a watchdog running off an integrated RC oscillator. The AT91SAM7S64-AU is a general-purpose microcontroller. Its integrated USB Device port makes it an ideal device for peripheral applications requiring connectivity to a PC or cellular phone. The AT91SAM7S64-AU is aggressive price point and high level of integration pushes its scope of use far into the cost-sensitive, high-volume consumer market.

Parametrics

AT91SAM7S64-AU absolute maximum ratings: (1)Storage Temperature: -60°C to + 150°C; (2)Voltage on Input Pins with Respect to Ground: -0.3V to + 5.5V; (3)Maximum Operating Voltage (VDDCORE, and VDDPLL): 1.95V; (4)Maximum Operating Voltage (VDDIO, VDDIN and VDDFLASH): 3.6V; (5)Total DC Output Current on all I/O lines: 150 mA; (6)Operating Temperature (Industrial): -40°C to + 85°C.

Features

AT91SAM7S64-AU features: (1)Advanced Interrupt Controller (AIC): Individually Maskable, Eight-level Priority, Vectored Interrupt Sources, Two External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected; (2)Debug Unit (DBGU): 2-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention; (3)Periodic Interval Timer (PIT): 20-bit Programmable Counter plus 12-bit Interval Counter; (4)Real-time Timer (RTT): 32-bit Free-running Counter with Alarm, Runs Off the Internal RC Oscillator; (5)16 Kbytes of Internal High-speed SRAM, Single-cycle Access at Maximum Speed; (6)Memory Controller (MC): Embedded Flash Controller, Abort Status and Misalignment Detection; (7)Reset Controller (RSTC): Based on Power-on Reset and Low-power Factory-calibrated Brownout Detector, Provides External Reset Signal Shaping and Reset Source Status; (8)Clock Generator (CKGR): Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and one PLL.

Diagrams