参数资料
型号: NS7520B-1-C55
厂商: Digi International
文件页数: 66/68页
文件大小: 0K
描述: IC ARM MICROPROCESSOR 177BGA
标准包装: 160
系列: NET+ARM®
应用: 网络处理器
核心处理器: ARM7
程序存储器类型: 外部程序存储器
RAM 容量: 外部
接口: EBI/EMI,以太网,DMA,SPI,UART
输入/输出数: 16
电源电压: 1.4 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 177-LFBGA
包装: 托盘
供应商设备封装: 177-BGA(13x13)
Operating freque ncy
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Operating frequency
The NS7520 is available in grades operating at three maximum operating frequencies: 36 MHz,
46 MHz, and 55 MHz. The operating frequency is set during bootstrap initialization, using pins
A[8:0]. These address pins load the PLL Settings register on powerup reset. A[8:7] determines IS
(charge pump current); A[6:5] determines FS (output divider), and A[4:0] defines ND (PLL
multiplier). Each bit in A[8:0] can be set individually. See the discussion of the PLL Settings register
in the NS7520 Hardware Reference for more information.
Serial ports
Bus interface
Two fully independent serial ports (UART, SPI)
Digital phase lock loop (DPLL) for receive clock
extractions
32-byte transmit/receive FIFOs
Internal programmable bit-rate generators
Bit rates 75–230400 in 16X mode
Bit rates 1200 bps–4 Mbps in 1X mode
Flexible baud rate generator, external clock for
synchronous operation
Receive-side character and buffer gap timers
Four receive-side data match detectors
Five independent programmable chip selects
with 256 Mb addressing per chip select
Chip select support for SRAM, FP/EDO DRAM,
SDRAM, Flash, and EEPROM without external
glue
8-, 16-, and 32-bit peripheral support
External address decoding and cycle termination
Dynamic bus sizing
Internal DRAM/SDRAM controller with address
multiplexer and programmable refresh frequency
Internal refresh controller (CAS before RAS)
Burst-mode support
0–63 wait states per chip select
Address pins that configurem chip operating
Power and Operating Voltages
500 mW maximum at 55 MHz (all outputs
switching)
418 mW maximum at 46 MHz (all outputs
switching)
291 mW maximum at 36 MHz (all outputs
switching)
3.3 V — I/O
1.5 V — Core
相关PDF资料
PDF描述
305-024-521-201 CONN CARDEDGE 24POS .156 GREEN
305-024-520-204 CONN CARDEDGE 24POS .156 GREEN
305-024-520-201 CONN CARDEDGE 24POS .156 GREEN
305-024-500-204 CONN CARDEDGE 24POS .156 GREEN
NS7520B-1-I46 IC ARM MICROPROCESSOR 177BGA
相关代理商/技术参数
参数描述
NS7520B-1-I46 功能描述:IC ARM MICROPROCESSOR 177BGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器 - 特定应用 系列:NET+ARM® 产品变化通告:Product Discontinuation 26/Aug/2009 标准包装:250 系列:- 应用:网络处理器 核心处理器:4Kc 程序存储器类型:- 控制器系列:- RAM 容量:16K x 8 接口:以太网,UART,USB 输入/输出数:- 电源电压:1.8V, 3.3V 工作温度:- 安装类型:表面贴装 封装/外壳:208-LQFP 包装:带卷 (TR) 供应商设备封装:PG-LQFP-208 其它名称:SP000314382
NS7520B-1-I55 功能描述:IC ARM MICROPROCESSOR 177BGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器 - 特定应用 系列:NET+ARM® 产品变化通告:Product Discontinuation 26/Aug/2009 标准包装:250 系列:- 应用:网络处理器 核心处理器:4Kc 程序存储器类型:- 控制器系列:- RAM 容量:16K x 8 接口:以太网,UART,USB 输入/输出数:- 电源电压:1.8V, 3.3V 工作温度:- 安装类型:表面贴装 封装/外壳:208-LQFP 包装:带卷 (TR) 供应商设备封装:PG-LQFP-208 其它名称:SP000314382
NS752AL 制造商:Hubbell Wiring Device-Kellems 功能描述:PLATE, 1GANG,W/2 F-CONNECTORS,AL
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