参数资料
型号: AT91SAM7SE32B-CU
厂商: Atmel
文件页数: 10/47页
文件大小: 0K
描述: IC MCU ARM7 32KB FLASH 144LFBGA
标准包装: 240
系列: SAM7SE
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 55MHz
连通性: EBI/EMI,I²C,SPI,SSC,UART/USART,USB
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 88
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 8K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 144-LFBGA
包装: 托盘
18
6222GS–ATARM–6-Sep-11
SAM7SE512/256/32 Summary
– Individually programmable size between 1K Byte and 1M Byte
– Individually programmable protection against write and/or user access
– Peripheral protection against write and/or user access
Embedded Flash Controller
– Embedded Flash interface, up to three programmable wait states
– Prefetch buffer, buffering and anticipating the 16-bit requests, reducing the required
wait states
– Key-protected program, erase and lock/unlock sequencer
– Single command for erasing, programming and locking operations
– Interrupt generation in case of forbidden operation
7.4
External Bus Interface
Integrates Three External Memory Controllers:
– Static Memory Controller
– SDRAM Controller
– ECC Controller
Additional Logic for NAND Flash and CompactFlash
Support
– NAND Flash support: 8-bit as well as 16-bit devices are supported
– CompactFlash support: all modes (Attribute Memory, Common Memory, I/O, True
IDE) are supported but the signals _IOIS16 (I/O and True IDE modes) and -ATA SEL
(True IDE mode) are not handled.
Optimized External Bus:
– 16- or 32-bit Data Bus (32-bit Data Bus for SDRAM only)
– Up to 23-bit Address Bus, Up to 8-Mbytes Addressable
– Up to 8 Chip Selects, each reserved to one of the eight Memory Areas
– Optimized pin multiplexing to reduce latencies on External Memories
Configurable Chip Select Assignment:
– Static Memory Controller on NCS0
– SDRAM Controller or Static Memory Controller on NCS1
– Static Memory Controller on NCS2, Optional CompactFlash Support
– Static Memory Controller on NCS3, NCS5 - NCS6, Optional NAND Flash Support
– Static Memory Controller on NCS4, Optional CompactFlash Support
– Static Memory Controller on NCS7
7.5
Static Memory Controller
External memory mapping, 512-Mbyte address space
8-, or 16-bit Data Bus
Up to 8 Chip Select Lines
Multiple Access Modes supported
– Byte Write or Byte Select Lines
– Two different Read Protocols for each Memory Bank
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