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參數(shù)資料
| 型號(hào)： | DS80C320-QNL+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 36/38頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 33MHZ HS/LP 44-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 系列： | 80C |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 33MHz |
| 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： | -40°C ~ 85°C |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 包裝： | 帶卷 (TR) |
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DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
7 of 38
Figure 2. Comparative Timing of the DS80C320/DS80C323 and 80C32
DS80C320/DS80C323 TIMING
STANDARD 80C32 TIMING
HIGH-SPEED OPERATION
The DS80C320/DS80C323 are built around a high-speed, 80C32-compatible core. Higher speed comes
not just from increasing the clock frequency but also from a newer, more efficient design.
In this updated core, dummy memory cycles have been eliminated. In a conventional 80C32, machine
cycles are generated by dividing the clock frequency by 12. In the DS80C320/DS80C323, the same
machine cycle is performed in 4 clocks. Thus the fastest instruction, one machine cycle, is executed three
times faster for the same crystal frequency. Note that these are identical instructions. Figure 2 shows a
comparison of the timing differences. The majority of instructions will see the full 3-to-1 speed
improvement. Some instructions will get between 1.5X and 2.4X improvement. Note that all instructions
are faster than the original 80C51. Table 1 shows a summary of the instruction set, including the speed.
The numerical average of all op codes is approximately a 2.5-to-1 speed improvement. Individual
programs are affected differently, depending on the actual instructions used. Speed-sensitive applications
would make the most use of instructions that are three times faster. However, the sheer number of 3-to-1
improved op codes makes dramatic speed improvements likely for any code. The Dual Data Pointer
feature also allows the user to eliminate wasted instructions when moving blocks of memory.
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| B37981M5682K000 | CAP CER 6800PF 50V 10% RADIAL |
| DS80C320-FCG+ | IC MCU HI SPEED 25MHZ 44-MQFP |
| B37981M5472K000 | CAP CER 4700PF 50V X7R RADIAL |
| B37981M5332K000 | CAP CER 3300PF 50V X7R RADIAL |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS80C320-QNR | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C320-WCD | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C320-WCG | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C320-WCL | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
| DS80C320-WCR | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Speed Microcontroller User Guide |
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