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參數(shù)資料

型號(hào)：	DS80C323-ECD
廠商：	Maxim Integrated Products
文件頁數(shù)：	37/38頁
文件大小：	0K
描述：	IC MCU HI SPEED 18MHZ 44-TQFP
產(chǎn)品培訓(xùn)模塊：	Lead (SnPb) Finish for COTS
產(chǎn)品變化通告：	Product Discontinuation 20/Feb/2012
標(biāo)準(zhǔn)包裝：	160
系列：	80C
核心處理器：	8051
芯體尺寸：	8-位
速度：	18MHz
連通性：	EBI/EMI，SIO，UART/USART
外圍設(shè)備：	電源故障復(fù)位，WDT
輸入/輸出數(shù)：	32
程序存儲(chǔ)器類型：	ROMless
RAM 容量：	256 x 8
電壓 - 電源 (Vcc/Vdd)：	4.5 V ~ 5.5 V
振蕩器型：	外部
工作溫度：	0°C ~ 70°C
封裝/外殼：	44-TQFP
包裝：	托盤

DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers

8 of 38

INSTRUCTION SET SUMMARY

All instructions in the DS80C320/DS80C323 perform the same functions as their 80C32 counterparts.

Their effect on bits, flags, and other status functions is identical. However, the timing of each instruction

is different. This applies both in absolute and relative number of clocks.

For absolute timing of real-time events, the timing of software loops will need to be calculated using the

Table 1. However, counter/timers default to run at the older 12 clocks per increment. Therefore, while

software runs at higher speed, timer-based events need no modification to operate as before. Timers can

be set to run at 4 clocks per increment cycle to take advantage of higher speed operation.

The relative time of two instructions might be different in the new architecture than it was previously. For

example, in the original architecture, the “MOVX A, @DPTR” instruction and the “MOV direct, direct”

instruction used two machine cycles or 24 oscillator cycles. Therefore, they required the same amount of

time. In the DS80C320/DS80C323, the MOVX instruction can be done in two machine cycles or eight

oscillator cycles, but the “MOV direct, direct” uses three machine cycles or 12 oscillator cycles. While

both are faster than their original counterparts, they now have different execution times from each other.

This is because in most cases, the DS80C320/DS80C323 use one cycle for each byte. The user concerned

with precise program timing should examine the timing of each instruction for familiarity with the

changes. Note that a machine cycle now requires just four clocks, and provides one ALE pulse per cycle.

Many instructions require only one cycle, but some require five. In the original architecture, all were one

or two cycles except for MUL and DIV.

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
DS80C323-ECD+	功能描述:8位微控制器 -MCU High-Speed Low-Power RoHS:否制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
DS80C323-ECD+T&R	制造商:Maxim Integrated Products 功能描述:MXMDS80C323-ECD+T&R HIGH-SPEED/LOW-POWER 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC ROMLESS 3V 44TQFP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MCU 18MHZ HS/LP 44-TQFP
DS80C323-ECD+T&R	功能描述:8位微控制器 -MCU High-Speed Low-Power RoHS:否制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
DS80C323-ECG	制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide
DS80C323-ECL	制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide

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