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DS80C320-FCG

更新时间： 2024-11-25 04:15:19

品牌	Logo	应用领域
达拉斯 - DALLAS		微控制器和处理器外围集成电路装置时钟
页数	文件大小	规格书
175页	1090K
描述
High-Speed Microcontroller User Guide

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DS80C320-FCG 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
Reach Compliance Code：	unknown	风险等级：	5.73
Is Samacsys：	N	具有ADC：	NO
地址总线宽度：	16	位大小：	8
边界扫描：	NO	CPU系列：	8051
最大时钟频率：	25 MHz	DAC 通道：	NO
DMA 通道：	NO	外部数据总线宽度：	8
格式：	FIXED POINT	集成缓存：	NO
JESD-30 代码：	S-PQFP-G44	JESD-609代码：	e0
低功率模式：	YES	DMA 通道数量：
外部中断装置数量：	6	I/O 线路数量：	32
串行 I/O 数：	2	端子数量：	44
计时器数量：	3	片上数据RAM宽度：	8
片上程序ROM宽度：		最高工作温度：	70 °C
最低工作温度：		PWM 通道：	NO
封装主体材料：	PLASTIC/EPOXY	封装代码：	QFP
封装等效代码：	QFP44(UNSPEC)	封装形状：	SQUARE
封装形式：	FLATPACK	电源：	5 V
认证状态：	Not Qualified	RAM（字节）：	256
RAM（字数）：	256	ROM（单词）：	0
速度：	25 MHz	子类别：	Microcontrollers
最大供电电压：	5.5 V	最小供电电压：	4 V
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子位置：	QUAD	uPs/uCs/外围集成电路类型：	MICROCONTROLLER
Base Number Matches：	1

DS80C320-FCG 数据手册

User’s Guide

….

High-Speed Microcontroller

User Guide

www.dalsemi.com

SECTION 1: INTRODUCTION

The Dallas Semiconductor High-Speed Microcontroller is an 8051-compatible device that provides

improved performance and power consumption compared to the original version. It retains instruction set

and object code compatibility with the 8051, yet performs the same operations in fewer clock cycles.

Consequently, more throughput is possible for the same crystal speed. As an alternative, the High-Speed

Microcontroller can be run slowly to save power. The more efficient design allows a much slower crystal

speed to get the same results as an original 8051, using much less power.

The fundamental innovation of the High-Speed Microcontroller is the use of only four clocks per

instruction cycle compared with twelve for the original 8051. This results in up to 3 times improvement

in performance. In addition, the High-Speed Microcontroller is updated with several new peripherals and

features while providing all of the standard features of an 80C32. These include 256 bytes of on-chip

RAM, 32 I/O ports, three 16-bit timer/counters, and an on-chip UART. All devices provide 256 bytes of

RAM for variables and stack. 128 bytes can be reached using direct addressing and 128 using indirect

addressing.

In addition to improved efficiency, members of the High-Speed Microcontroller family can operate at a

maximum clock rate of 33 or 40 MHz. Combined with the 3 times performance, this allows for a

maximum performance equivalent to a 99 or 120 MHz 8051. This level of computing power is

comparable to many 16-bit processors, but without the added expense and complexity if implementing a

16-bit interface.

A number of peripherals were added to the original 80C32 core when designing the High-Speed

Microcontroller family. Some devices have a programmable watchdog Timer to supervise the system. It

will count up to a user programmable interval and then reset the CPU unless cleared by software. Other

features such as a second, full-function UART and dual data pointers are available to minimize external

interrupts allows greater flexibility in dealing with external events.

Some members of the High-Speed Microcontroller family incorporate Power Management Modes which

allow the device to dynamically vary the internal clock speed from 4 clocks per cycle (default) to 64 or

1024 clocks per cycle. Because power consumption is directly proportional to clock speed, the device

can reduce its operating frequency during periods of little or no activity. This greatly reduces power

consumption. The switch-back feature allows the device to quickly return in divide by 4 mode upon

receipt of an interrupt or serial port activity, allowing the device to respond to external events while in

Power Management Mode.

Various memory configurations are available with the High-Speed Microcontroller family. EPROM and

Mask programmable ROM versions are available for program memory. Some versions incorporate

extended MOVX SRAM on-chip, reducing or eliminating the need for external data memory. This

memory can be made nonvolatile in the DS87C530 through the use of an external lithium battery.

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中文翻译

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与DS80C320-FCG相关器件

型号	品牌	获取价格	描述	数据表
DS80C320-FCG+	MAXIM	获取价格	Microcontroller, 8-Bit, 8051 CPU, 25MHz, CMOS, PQFP44,
DS80C320-FCL	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-FCR	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-FND	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-FNG	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-FNL	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-FNR	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-KCD	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-KCG	DALLAS	获取价格	High-Speed Microcontroller User Guide
DS80C320-KCL	DALLAS	获取价格	High-Speed Microcontroller User Guide

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