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NS486

更新时间： 2024-09-20 22:28:47

品牌	Logo	应用领域
美国国家半导体 - NSC		控制器
页数	文件大小	规格书
26页	470K
描述
Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems

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NS486 数据手册

ADVANCE INFORMATION

December 1997

™

NS486 SXL

Optimized 32-Bit 486-Class Controller with On-Chip

Peripherals for Embedded Systems

n Optimized DRAM Controller (supports two banks, up to

8 Mbytes each)

n Up to nine versatile, programmable chip selects

n Up to eight external interrupts directly supported, and

additional interrupt expansion through an external PIC

interface

n Glueless interface to ISA-type peripherals

n Arbitration support for auxiliary processor

n Support for External Bus Masters, allowing them to

access DRAM and on-chip Peripherals

General Description

The NS486SXL is a highly integrated embedded system

™

controller incorporating an Intel486 -class 32-bit processor

along with all of the necessary System Service Elements,

implementing a true “system on a chip.” It is ideally suited for

wide variety of applications running in a segmented

protect-mode environment. The NS486SXL is the second

member of the NS486 family.

Features

n 100% compatible with VxWorks , VRTX , QNX

Neutrino, pSOS +^®, and other popular real-time

executives and operating system kernels

n Intel486 instruction set compatible (protected mode only)

with optimized performance

n Operation at 25 MHz with 5V supply

n Low cost 132-pin PQFP package

n Industry standard interrupt controller, timers, and real

time clock

™

n MICROWIRE /Access.bus synchronous serial

™

interfaces

n UART with IrDA v1.0 (Infrared Data Association) port

n Reconfigurable I/O: Up to 28 I/O pins can be used as

general purpose bidirectional I/O lines

n Flexible, programmable, multilevel power saving modes

maximize power savings

n Programming model compatible with the NS486SXF

where possible

™

n Protected WATCHDOG timer

Block Diagram NS486SXL Single-Chip Embedded Controller

DS100121-1

™

MICROWIRE , NS486 and WATCHDOG are trademarks of National Semiconductor Corporation.

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

™

Intel486 is a trademaek of Intel Corporation.

™

pSOS + is a trademark of Integrated Systems, Inc.

™

VRTX is a registered trademark of Microtec Research, Inc.

PowerPack^®is a registered trademark of Microtek International.

™

QNX is a registered trademark of QNX Software Systems, Inc.

™

VxWorks is a registered trademark of Wind River Systems, Inc.

DS100121

www.national.com

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与NS486相关器件

型号	品牌	获取价格	描述	数据表
NS486SXF	NSC	获取价格	NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Sys
NS486SXF-25	TI	获取价格	32-BIT, 25MHz, MICROCONTROLLER, PQFP16, 28 X 28 MM, PLASTIC, QFP-160
NS486SXL	NSC	获取价格	Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems
NS486SXLVUL	NSC	获取价格	Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems
NS4A	TTELEC	获取价格	TaNfilm SON flat precision resistor array
NS4B	TTELEC	获取价格	TaNfilm SON flat precision resistor array
NS4L107T	NICHIA	获取价格	WARM WHITE LED
NS4W107T	NICHIA	获取价格	TYPE WHITE LED
NS-50.18OHM0.5%E73	VISHAY	获取价格	Fixed Resistor, Wire Wound, 5W, 0.18ohm, 0.5% +/-Tol, -90,90ppm/Cel,
NS-50.18OHM3%S73	VISHAY	获取价格	Fixed Resistor, Wire Wound, 6.5W, 0.18ohm, 3% +/-Tol, -90,90ppm/Cel,

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