DS83C530, DS87C530 EPROM微控制器，带有实时时钟

概述

The DS87C530/DS83C530 EPROM/ROM microcontrollers with a real-time clock (RTC) are 8051-compatible microcontrollers based on the Dallas Semiconductor high-speed core. They use 4 clocks per instruction cycle instead of the 12 used by the standard 8051. They also provide a unique mix of peripherals not widely available on other processors. They include an on-chip RTC and battery backup support for an on-chip 1k x 8 SRAM. The new Power Management Mode allows software to select reduced power operation while still processing.

A combination of high-performance microcontroller core, RTC, battery-backed SRAM, and power management makes the DS87C530/DS83C530 ideal for instruments and portable applications. They also provide several peripherals found on other Dallas high-speed microcontrollers. These include two independent serial ports, two data pointers, on-chip power monitor with brownout detection and a watchdog timer.

Power Management Mode (PMM) allows software to select a slower CPU clock. While default operation uses four clocks per machine cycle, the PMM runs the processor at 64 or 1024 clocks per cycle. There is a corresponding drop in power consumption when the processor slows.

The EMI reduction feature allows software to select a reduced emission mode. This disables the ALE signal when it is unneeded.

The DS83C530 is a factory mask ROM version of the DS87C530 designed for high-volume, costsensitive applications. It is identical in all respects to the DS87C530, except that the 16kB of EPROM is replaced by a user-supplied application program. All references to features of the DS87C530 will apply to the DS83C530, with the exception of EPROM-specific features where noted. Please contact your local Dallas Semiconductor sales representative for ordering information.

Note: The DS87C530/DS83C530 are monolithic devices. A user must supply an external battery or super cap and a 32.768kHz timekeeping crystal to have permanently powered timekeeping or nonvolatile RAM. The DS87C530/DS83C530 provide all the support and switching circuitry needed to manage these resources.

关键特性

80C52 Compatible
- 8051 Instruction-Set Compatible
- Four 8-Bit I/O Ports
- Three 16-Bit Timer/Counters
- 256 Bytes Scratchpad RAM
Large On-Chip Memory
- 16kB EPROM (OTP)
- 1kB Extra On-Chip SRAM for MOVX
ROMSIZE Features
- Selects Effective On-Chip ROM Size from 0 to 16kB
- Allows Access to Entire External Memory Map
- Dynamically Adjustable by Software
- Useful as Boot Block for External Flash
Nonvolatile Functions
- On-Chip Real-Time Clock with Alarm Interrupt
- Battery Backup Support of 1kB SRAM
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 Saves Power
- 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
14 Total Interrupt Sources with Six External
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Key Specifications: 8051 Drop-Ins

Part Number

Internal Program Memory

Internal MOVX SRAM

Serial Ports

16-bit Timers

Data Pointers

Features

Watchdog

Power Fail Reset & Interrupt

Power Mgmt. Mode

Ring Osc.

Supply Voltage (V)

Package

Price^**

DS83C530

16kB ROM

1kB

•	256-Byte Internal Scratchpad

•	Multiple External Interrupts

•	Real-Time Clock

•	Reduced EMI Mode

Yes

4.5 to 5.5

See Data Sheet

DS87C530

16kB EPROM

•	256-Byte Internal Scratchpad

•	Multiple External Interrupts

•	Nonvolatile SRAM

•	Real-Time Clock

•	Reduced EMI Mode

CQUAD-GL/52
PLCC/52
TQFP/52

$16.00 @ 1k

See All 8051 Drop-Ins (10)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

定购信息

注：

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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： 1-8 of 8

DS87C530

注

免费样品

采购

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

DS87C530-KCL

33MHz

CQUAD-GL；52引脚；413mm²
封装图： 21-0383 (PDF)
Land Pattern: Not Available
使用封装码/变更：K52-1*

0°C至+70°C

参考数据资料

DS87C530-QCL+

PLCC；52引脚；408mm²
封装图： 21-0049 (PDF)
Land Pattern: 90-0237 (PDF)
使用封装码/变更：Q52+1*

0°C至+70°C

RoHS/无铅：无铅
材料分析

DS87C530-QCL

33MHz

PLCC；52引脚；408mm²
封装图： 21-0049 (PDF)
Land Pattern: 90-0237 (PDF)
使用封装码/变更：Q52-1*

0°C至+70°C

RoHS/无铅：否
材料分析

DS87C530-QNL

33MHz

PLCC；52引脚；408mm²
封装图： 21-0049 (PDF)
Land Pattern: 90-0237 (PDF)
使用封装码/变更：Q52-1*

-40°C至+85°C

RoHS/无铅：否
材料分析

DS87C530-QNL+

PLCC；52引脚；408mm²
封装图： 21-0049 (PDF)
Land Pattern: 90-0237 (PDF)
使用封装码/变更：Q52+1*

-40°C至+85°C

RoHS/无铅：无铅
材料分析

DS87C530-ECL+

TQFP；52引脚；149mm²
封装图： 21-0295 (PDF)
Land Pattern: Not Available
使用封装码/变更：C52+2*

0°C至+70°C

参考数据资料

DS87C530-ECL

33MHz

TQFP；52引脚；149mm²
封装图： 21-0295 (PDF)
Land Pattern: Not Available
使用封装码/变更：C52-2*

0°C至+70°C

RoHS/无铅：否
材料分析

DS87C530-ENL

33MHz

TQFP；52引脚；149mm²
封装图： 21-0295 (PDF)
Land Pattern: Not Available
使用封装码/变更：C52-2*

-40°C至+85°C

RoHS/无铅：否
材料分析