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产品概述
A member of the SAM7SE series of flash microcontrollers based on the 32-bit ARM7TDMI® RISC processor. It operates at a maximum speed of 55MHz and features 256KB of flash and 32KB of SRAM. The peripheral set includes an external bus interface (EBI) supporting static memory, ECC-enabled NAND, compact flash and SDRAM, UART, two USARTs, TWI, SPI, SSC, four 16-bit PWM controllers, three 16-bit timers, an RTT and one 8x10-bit ADC. It achieves single-cycle instruction access from embedded flash at 27 MIPS. The multi-layer bus matrix, multiple SRAM banks, PDC, and DMA support parallel tasks and maximize data throughput. The SAM7SE256 operates from 1.65V to 3.6V and is available in 144-pin LFBGA and LQFP 128-pin package.
关键参数
| Parameter | Value |
| Flash (Kbytes): | 256 Kbytes |
| Pin Count: | 144 |
| Max. Operating Freq. (MHz): | 48 MHz |
| CPU: | ARM7TDMI |
| Hardware QTouch Acquisition: | No |
| Max I/O Pins: | 88 |
| Ext Interrupts: | 88 |
| USB Transceiver: | 1 |
| USB Speed: | Full Speed |
| USB Interface: | Device |
芯片订购型号
| Ordering Code | Package | Speed | Power Supply | Operational Range |
| AT91SAM7SE256B-AU | LQFP R-LQ128_E 128 | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256B-CUR | LFBGA R-LFBGA144_H 144 | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256B-AUR | | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256-CU | LFBGA R-LFBGA144_H 144 | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256-AU | LQFP R-LQ128_E 128 | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256-AU-999 | LQFP R-LQ128_E 128 | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256B-CU | LFBGA R-LFBGA144_H 144 | | | Industrial (A) (-40°C to 85°C) |
| AT91SAM7SE256-CU-999 | LFBGA R-LFBGA144_H 144 | | | |
