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状态

状况：生产中。

数据资料

完整的数据资料 (PDF, 716kB) 英文 下载

勘误表

勘误表 DS83C520 83C520A1.pdf 勘误表 DS87C520 87C520A4.pdf 勘误表 DS87C520 87C520A7.pdf 勘误表 DS87C520 87C520A8.pdf 勘误表 DS87C520 87C520A10.pdf 勘误表 DS87C520 87C520A11.pdf 勘误表 DS87C520 87C520A12.pdf 勘误表 DS87C520 87C520A13.pdf 勘误表 DS87C520 87C520A14.pdf 勘误表 DS87C520 87C520A15.pdf 勘误表 DS87C520 87C520A16.pdf 勘误表 DS83C520 83C520A3.pdf 勘误表 DS83C520 83C520A4.pdf

概述

The DS87C520/DS83C520 EPROM/ROM high-speed microcontrollers are fast 8051-compatible microcontrollers. They feature a redesigned processor core without wasted clock and memory cycles. As a result, the devices execute every 8051 instruction between 1.5 and 3 times faster than the original for the same crystal speed. Typical applications will see a speed improvement of 2.5 times using the same code and the same crystal. The DS87C520/DS83C520 offer a maximum crystal speed of 33MHz, resulting in apparent execution speeds of 82.5MHz (approximately 2.5X). The DS87C520/DS83C520 are pin compatible with all three packages of the standard 8051, and include standard resources such as three timer/counters, serial port, and four 8-bit I/O ports. They feature 16kB of EPROM or mask ROM with an extra 1kB of data RAM. Both OTP and windowed packages are available. Besides greater speed, the microcontroller includes a second full hardware serial port, seven additional interrupts, programmable Watchdog Timer, Brownout Monitor, and Power-Fail Reset. The device also provides dual data pointers (DPTRs) to speed block data memory moves. It also can adjust the speed of MOVX data memory access from two to nine machine cycles for flexibility in selecting external memory and peripherals. A new Power Management Mode (PMM) is useful for portable applications. This feature allows software to select a lower speed clock as the main time base. While normal operation has a machine cycle rate of 4 clocks per cycle, the PMM runs the processor at 64 or 1024 clocks per cycle. For example, at 12MHz, standard operation has a machine cycle rate of 3MHz. In Power Management Mode, software can select either 187.5kHz or 11.7kHz machine cycle rate. There is a corresponding reduction in power consumption when the processor runs slower. The EMI reduction feature allows software to select a reduced emission mode. This disables the ALE signal when it is unneeded. The DS83C520 is a factory mask ROM version of the DS87C520 designed for high-volume, cost-sensitive applications. It is identical in all respects to the DS87C520, except that the 16kB of EPROM is replaced by a user-supplied application program. All references to features of the DS87C520 will apply to the DS83C520, with the exception of EPROM-specific features where noted. Please contact your local Dallas Semiconductor sales representative for ordering information.

关键特性

80C52 Compatible 8051 Pin- and Instruction-Set Compatible Four 8-Bit I/O Ports Three 16-Bit Timer/Counters 256 Bytes Scratchpad RAM Large On-Chip Memory 16kB Program Memory 1kB Extra On-Chip SRAM for MOVX ROMSIZE Feature Selects Internal ROM Size from 0 to 16kB Allows Access to Entire External Memory Map Dynamically Adjustable by Software Useful as Boot Block for External Flash High-Speed Architecture 4 Clocks/Machine Cycle (8051 = 12) Runs DC to 33MHz Clock Rates Single-Cycle Instruction in 121ns Dual Data Pointer Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals Power Management Mode Programmable Clock Source to Save Power CPU Runs from (crystal/64) or (crystal/1024) Provides Automatic Hardware and Software Exit EMI Reduction Mode Disables ALE Two Full-Duplex Hardware Serial Ports High Integration Controller Includes: Power-Fail Reset Early-Warning Power-Fail Interrupt Programmable Watchdog Timer 13 Interrupt Sources with Six External Available in 40-pin PDIP, 44-Pin PLCC, 44-Pin TQFP, and 40-Pin Windowed CERDIP Factory Mask DS83C520 or EPROM (OTP) DS87C520 通过美国保险商实验室协会(UL®)认证

图表

原理框图

应用笔记

App Note 57: DS80C320 Memory Interface Timing - DS87C520 (English only) App Note 75: Using the High-Speed Micro's Serial Ports - DS87C520 (English only) App Note 78: Using Power Management with High-Speed Microcontrollers - DS87C520 (English only) App Note 81: Memory Expansion with the High-Speed Microcontroller Family - DS87C520 (English only) App Note 89: High-Speed Micro Memory Interface Timing - DS87C520 (English only) App Note 102: Using the High-Speed Microcontroller as a Bootstrap Loader - DS87C520 (English only) App Note 137: Using a EconOscillator™ to Clock an 8051 Microprocessor - DS87C520 (English only) App Note 165: Interfacing the DS2760 1-Wire High-Precision Li-Ion Battery Monitor and Protection IC in a Microcontroller Environment - DS87C520 (English only) App Note 170: Adding Nonvolatile SRAM into Embedded Systems - DS87C520 (English only) App Note 408: Controlling a DS1803 Digital Potentiometer Using an 8051 Microprocessor to Generate 2-Wire Signals - DS87C520 (English only) App Note 548: Using the High-Speed Micro's Watchdog Timer - DS87C520 (English only) App Note 595: 8051 Microcontrollers: Frequently Asked Questions - DS87C520 (English only) App Note 603: Implementing a Serial Port FIFO Using Dual Data Pointers - DS87C520 (English only) App Note 1087: Micro Tutorial 1: Understanding DC Electrical Characteristics of Microcontrollers - DS87C520 (English only) App Note 1771: Microcontrollers Improve Power Efficiency of 8051-Based Designs - DS87C520 (English only) 应用笔记2035：高速8051微控制器：引领成长与创新之路 - DS87C520 App Note 3421: Interfacing 8051-based Microcontrollers to an SCI Port - DS87C520 (English only) App Note 3452: Instant Performance Enhancement with Flash Microcontrollers - DS87C520 (English only) 应用笔记4199：从高速微控制器系列向超高速闪存微控制器的升级 - DS83C520, DS87C520

可靠性报告

可靠性报告： DS87C520.pdf (English only) 申请可靠性报告： DS83C520 (English only) 通过美国保险商实验室协会(UL®)认证

软件/模型

无

定购信息

注： 购买产品，请访问：http://china.maxim-ic.com/sales。 没有找到您所需要的器件？请咨询我们的应用工程师。我们的专家会帮助您找到合适的器件，通常在一个工作日内回复。 型号尾缀：T或T&R = 卷带; + = RoHS/无铅; # = RoHS/无铅豁免权。详细信息请参考：完整的数据资料或型号命名规则。 * “封装代码/变更”提供产品使用的变更信息。注意：型号尾缀中的“+”、“#”和“-”表示器件的RoHS状况，封装图上可能显示不同的尾缀字符。

器件： 1-13/13

DS87C520	免费样品	采购	状态	封装： 类型 引脚 占位面积   封装图编码/变更 *	温度	RoHS/无铅？ 材料分析
DS87C520-WCL			Active	CDIP(W)；40引脚；851.8mm² 封装图： 21-0384 (PDF) 连接盘图形： Not Applicable 使用封装码/变更：J40-5*	0°C至+70°C	参考数据资料
DS87C520-MCL+			Active	PDIP(W)；40引脚；835.7mm² 封装图： 21-0044 (PDF) 连接盘图形： Not Applicable 使用封装码/变更：P40+4*	0°C至+70°C	RoHS/无铅：无铅 材料分析
DS87C520-MCL			Active	PDIP(W)；40引脚；835.7mm² 封装图： 21-0044 (PDF) 连接盘图形： Not Applicable 使用封装码/变更：P40-4*	0°C至+70°C	RoHS/无铅：否 材料分析
DS87C520-MNL+			Active	PDIP(W)；40引脚；835.7mm² 封装图： 21-0044 (PDF) 连接盘图形： Not Applicable 使用封装码/变更：P40+4*	-40°C至+85°C	RoHS/无铅：无铅 材料分析
DS87C520-MNL			Active	PDIP(W)；40引脚；835.7mm² 封装图： 21-0044 (PDF) 连接盘图形： Not Applicable 使用封装码/变更：P40-4*	-40°C至+85°C	RoHS/无铅：否 材料分析
DS87C520-QCL+			Active	PLCC；44引脚；311.5mm² 封装图： 21-0049 (PDF) 连接盘图形： 90-0236 (PDF) 使用封装码/变更：Q44+9*	0°C至+70°C	RoHS/无铅：无铅 材料分析
DS87C520-QCL			Active	PLCC；44引脚；311.5mm² 封装图： 21-0049 (PDF) 连接盘图形： 90-0236 (PDF) 使用封装码/变更：Q44-9*	0°C至+70°C	RoHS/无铅：否 材料分析
DS87C520-QNL			Active	PLCC；44引脚；311.5mm² 封装图： 21-0049 (PDF) 连接盘图形： 90-0236 (PDF) 使用封装码/变更：Q44-9*	-40°C至+85°C	RoHS/无铅：否 材料分析
DS87C520-QNL+			Active	PLCC；44引脚；311.5mm² 封装图： 21-0049 (PDF) 连接盘图形： 90-0236 (PDF) 使用封装码/变更：Q44+9*	-40°C至+85°C	RoHS/无铅：无铅 材料分析
DS87C520-ECL+			Active	TQFP；44引脚；148.8mm² 封装图： 21-0293 (PDF) 连接盘图形： 90-0316 (PDF) 使用封装码/变更：C44+3*	0°C至+70°C	RoHS/无铅：无铅 材料分析
DS87C520-ECL			Active	TQFP；44引脚；148.8mm² 封装图： 21-0293 (PDF) 连接盘图形： 90-0316 (PDF) 使用封装码/变更：C44-3*	0°C至+70°C	RoHS/无铅：否 材料分析
DS87C520-ENL+			Active	TQFP；44引脚；148.8mm² 封装图： 21-0293 (PDF) 连接盘图形： 90-0316 (PDF) 使用封装码/变更：C44+3*	-40°C至+85°C	RoHS/无铅：无铅 材料分析
DS87C520-ENL			Active	TQFP；44引脚；148.8mm² 封装图： 21-0293 (PDF) 连接盘图形： 90-0316 (PDF) 使用封装码/变更：C44-3*	-40°C至+85°C	RoHS/无铅：否 材料分析

注释、注解

The High-Speed Microcontroller User’s Guide must be used in conjunction with this data sheet. Download it at: www.maxim-ic.com/microcontrollers. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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高速微控制器用户指南 (PDF, English only)

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