mux 2 to 4,mux 4 to 1,Reg 8 bit
標簽: mux 2 to 4 mux 4 to 1 Reg 8 bit
上傳時間: 2016-03-27
上傳用戶:thoven
Features • Compatible with MCS-51® Products • 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines • Three 16-bit Timer/Counters • Eight Interrupt Sources • Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag
標簽: 8226 Programmable Compatible In-System
上傳時間: 2015-06-27
上傳用戶:dianxin61
Abstract: This design idea explains how to implement an 8-bit analog-to-digital converter (ADC), using a microcontroller
上傳時間: 2013-10-30
上傳用戶:愛死愛死
描述P89C660/662/664/668單片機內帶6KB/32KB/64KB/64KB Flash存儲器,該存儲器既可并行編程也可以串行在系統編程(ISP).在實際的成型產品中,可通過ISP升級用戶程序. 在Boot ROM程序中可通過一個默認的串行下載器(UART)對Flash存儲器作ISP編程,而在Flash代碼區中并不需要有調用下載器的代碼,用戶程序可通過調用在Boot ROM中的標準子程對Flash存儲器擦寫和再編程(即IAP). 該器件在6個時鐘周期內執行一條指令,是傳統的80C51的兩倍.一個OTP結構位讓用戶選擇傳統的12個時鐘周期. 該器件用advanced CMOS工藝制造,是80C51單片機家族的衍生品.其指令集和80C51相同. 該器件有四個8位I/O口,三個16位定時器/事件計數器,多中斷源,四個優選級,可嵌套中斷結構,一個增強型UART和片內振蕩器以及時序電路. P89C660/662/664/668新增特性使其成為一個功能強大的單片機,為某些應用提供PWM,高速的I/O和加/減計數,如汽車控制.
上傳時間: 2013-10-10
上傳用戶:FreeSky
The PCA9670 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9670 is a drop-in upgrade for the PCF8574 providing higher Fast-mode Plus(Fm+) I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWMdimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devicescan be on the bus without the need for bus buffers, higher total package sink capacity(200 mA versus 100 mA) that supports having all 25 mA LEDs on at the same time andmore device addresses (64 versus 8) are available to allow many more devices on the buswithout address conflicts.
上傳時間: 2013-10-15
上傳用戶:stella2015
The PCA9672 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9672 is a drop-in upgrade for the PCF8574 providing higher Fast-mode Plus(Fm+) I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWMdimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devicescan be on the bus without the need for bus buffers, higher total package sink capacity(200 mA versus 100 mA) that supports having all LEDs on at the same time and moredevice addresses (16 versus 8) are available to allow many more devices on the buswithout address conflicts.
上傳時間: 2013-10-23
上傳用戶:jasonheung
The PCA9674/74A is a drop-in upgrade for the PCF8574/74A providing higher Fast-modePlus I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWMdimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devicescan be on the bus without the need for bus buffers, higher total package sink capacity(200 mA versus 100 mA) that supports having all LEDs on at the same time and moredevice addresses (64 versus 8) are available to allow many more devices on the buswithout address conflicts.
上傳時間: 2013-10-22
上傳用戶:wwwwwen5
8位相等比較器,比較8位數是否相等 -- 8-bit Identity Comparator -- uses 1993 std VHDL -- download from www.pld.com.cn & www.fpga.com.cn
上傳時間: 2015-07-02
上傳用戶:colinal
實現8比特字節的RS糾錯編碼,可以指定極性校驗字節數目,能產生的最大校驗序列長度為255字節(含極性校驗字節).This is an implementation of a Reed-Solomon code with 8 bit bytes, and a configurable number of parity bytes. The maximum sequence length (codeword) that can be generated is 255 bytes, including parity bytes.
上傳時間: 2016-08-24
上傳用戶:思琦琦
Here are the functions for Hamming code 7.4 and Extended Hamming code 8.4 encoding and decoding. For 7.4 code, one error per 7-bit codeword can be corrected. For 8.4 code, one error per 8-bit codeword can be corrected and not less than 2 errors can be detected.
標簽: Hamming code and functions
上傳時間: 2014-01-05
上傳用戶:Amygdala