AT91R40008-66AU

Product Summary

The AT91R40008-66AU is a microcontroller. It is based on the ARM7TDMI processor core. The AT91R40008-66AU features a direct connection to off-chip memory, including Flash, through the fully programmable External Bus Interface (EBI). An 8-level priority vectored interrupt controller, in conjunction with the Peripheral Data Controller, significantly improves the real-time performance of the device. The AT91R40008-66AU is manufactured using Atmel’s high-density CMOS technology. By combining the ARM7TDMI processor core with a large, on-chip, high-speed SRAM and a wide range of peripheral functions on a monolithic chip, the AT91R40008-66AU is a powerful microcontroller that offers a flexible and high-performance solution to many computeintensive embedded control applications.

Parametrics

AT91R40008-66AU absolute maximum ratings: (1)Average Ramp-up Rate (217℃ to Peak): 3℃/sec. max; (2)Preheat Temperature 175℃ ±25℃: 180 sec max; (3)Temperature Maintained Above 217℃: 60 sec to 150 sec; (4)Time within 5℃ of Actual Peak Temperature: 20 sec to 40 sec; (5)Peak Temperature Range: 260 +0 ℃; (6)Ramp-down Rate: 6 ℃/sec. max; (7)Time 25℃ to Peak Temperature: 8 min. max.

Features

AT91R40008-66AU features: (1)Incorporates the ARM7TDMI ARM Thumb Processor Core: High-performance 32-bit RISC Architecture; High-density 16-bit Instruction Set; Leader in MIPS/Watt; Little-endian; EmbeddedICE(In-circuit Emulation); (2)8-, 16- and 32-bit Read and Write Support; (3)256K Bytes of On-chip SRAM: 32-bit Data Bus; Single-clock Cycle Access; (4)Fully Programmable External Bus Interface (EBI): Maximum External Address Space of 64M Bytes; Up to Eight Chip Selects; Software Programmable 8/16-bit External Data Bus; (5)Eight-level Priority, Individually Maskable, Vectored Interrupt Controller: Four External Interrupts, including a High-priority, Low-latency Interrupt Request; (6)32 Programmable I/O Lines; (7)Three-channel 16-bit Timer/Counter: Three External Clock Inputs; Two Multi-purpose I/O Pins per Channel; (8)Two USARTs: Two Dedicated Peripheral Data Controller (PDC) Channels per USART; (9)Programmable Watchdog Timer; (10)Advanced Power-saving Features: CPU and Peripheral Can be Deactivated Individually; (11)Fully Static Operation: 0 Hz to 75 MHz Internal Frequency Range at VDDCORE = 1.8V, 85℃; (12)2.7V to 3.6V I/O Operating Range; (13)1.65V to 1.95V Core Operating Range; (14)-40℃ to +85℃ Temperature Range; (15)Available in 100-lead LQFP Package (Green).

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