-
The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge)protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides theelectrical interface between an asynchronous communication controller and the serial-port connector. Thiscombination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, orcompatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-Vsupply. In addition, the device includes an always-active noninverting output (ROUT2B), which allowsapplications using the ring indicator to transmit data while the device is powered down. The device operates atdata signaling rates up to 250 kbit/s and a maximum of 30-V/ms driver output slew rate.
標簽：
MULTICHANNEL
5.5
TO
RS
上傳時間：
2013-10-19
上傳用戶：ddddddd
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The CAT9555 is a CMOS device that provides 16-bitparallel input/output port expansion for I²C and SMBuscompatible applications. These I/O expanders providea simple solution in applications where additional I/Osare needed: sensors, power switches, LEDs,pushbuttons, and fans.
標簽：
SMBus
Port
bit
and
上傳時間：
2014-01-09
上傳用戶：1101055045
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The CAT9534 is an 8-bit parallel input/output portexpander for I²C and SMBus compatible applications.These I/O expanders provide a simple solution inapplications where additional I/Os are needed: sensors,power switches, LEDs, pushbuttons, and fans.The CAT9534 consists of an input port register, anoutput port register, a configuration register, a polarityinversion register and an I²C/SMBus-compatible serialinterface.
標簽：
SMBus
Port
bit
and
上傳時間：
2013-11-09
上傳用戶：liulinshan2010
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Xilinx FPGAs require at least two power supplies: VCCINTfor core circuitry and VCCO for I/O interface. For the latestXilinx FPGAs, including Virtex-II Pro, Virtex-II and Spartan-3, a third auxiliary supply, VCCAUX may be needed. Inmost cases, VCCAUX can share a power supply with VCCO.The core voltages, VCCINT, for most Xilinx FPGAs, rangefrom 1.2V to 2.5V. Some mature products have 3V, 3.3Vor 5V core voltages. Table 1 shows the core voltagerequirement for most of the FPGA device families. TypicalI/O voltages (VCCO) vary from 1.2V to 3.3V. The auxiliaryvoltage VCCAUX is 2.5V for Virtex-II Pro and Spartan-3, andis 3.3V for Virtex-II.
標簽：
Xilinx
FPGA
DC
輸出
上傳時間：
2013-10-22
上傳用戶：liu999666
-
Xilinx FPGAs require at least two power supplies: VCCINTfor core circuitry and VCCO for I/O interface. For the latestXilinx FPGAs, including Virtex-II Pro, Virtex-II and Spartan-3, a third auxiliary supply, VCCAUX may be needed. Inmost cases, VCCAUX can share a power supply with VCCO.The core voltages, VCCINT, for most Xilinx FPGAs, rangefrom 1.2V to 2.5V. Some mature products have 3V, 3.3Vor 5V core voltages. Table 1 shows the core voltagerequirement for most of the FPGA device families. TypicalI/O voltages (VCCO) vary from 1.2V to 3.3V. The auxiliaryvoltage VCCAUX is 2.5V for Virtex-II Pro and Spartan-3, andis 3.3V for Virtex-II.
標簽：
Xilinx
FPGA
DC
輸出
上傳時間：
2013-10-22
上傳用戶：aeiouetla
-
DSP音頻處理示例The benefits of real-time analysis provided by DSP/BIOS are often required in programs that
were engineered without it. When the program is not built from the ground up using the
DSP/BIOS kernel and real-time analysis features, the lack of familiarity prevents engineers
from reaping the benefits of this very powerful tool set, especially in the final stage of
development when real-time analysis is needed most. This application note provides an
example of the necessary steps required to utilize DSP/BIOS features in order to bring these
solutions to bear in an existing application.
標簽：
DSP
real-time
benefits
analysis
上傳時間：
2014-01-06
上傳用戶：003030
-
解決時鐘問題，acm競賽題
A weird clock marked from 0 to 59 has only a minute hand. It won t move until a special coin is thrown into its box. There are different kinds of coins as your options. However once you make your choice, you cannot use any other kind. There are infinite number of coins of each kind, each marked with a number d ( 0 <= 1000 ), meaning that this coin will make the minute hand move d times clockwise the current time. For example, if the current time is 45, and d = 2. Then the minute hand will move clockwise 90 minutes and will be pointing to 15.
Now you are given the initial time s ( 0 <= s <= 59 ) and the coin s type d. Write a program to find the minimum number of d-coins needed to turn the minute hand back to 0.
標簽：
時鐘
上傳時間：
2015-05-21
上傳用戶：rishian
-
YSS915 (KP2V2) is an LSI for processing Karaoke voice signals.
This LSI has an A/D converter (1 channel) for the microphone echo, and a memory for the microphone echo and
key control. These features allow achieving the functions needed for the Karaoke system by using only one LSI
chip. As for the microphone echoes, many other types of echoes are available in addition to ordinary ones so that
YSS915 is applicable to various uses.
In addition to these Karaoke programs, YSS915 is able to provide the Movie & Music programs, with which the
surround effect is applied to the movie and music sources for giving the users more enjoyment.
YSS915 is pin compatible with and register compatible with YSS903 (KP2V).
標簽：
processing
LSI
converter
Karaoke
上傳時間：
2015-06-23
上傳用戶：lijianyu172
-
This book, the Sun™ ONE Message Queue (MQ) 3.0.1 Administrator’s Guide,
provides the background and information needed to perform administration tasks
for an MQ messaging system.
This preface contains the following sections:
• Audience for This Guide
• Organization of This Guide
• Conventions
• Other Documentation Resources
標簽：
Administrator
backgroun
the
provides
上傳時間：
2014-10-28
上傳用戶：shawvi
-
加密算法
Test Driver for Crypto++, a C++ Class Library of Cryptographic Primitives:
- To generate an RSA key
cryptest g
- To encrypt and decrypt a string using RSA
cryptest r
- To calculate MD5, SHS, and RIPEMD-160 message digests:
cryptest m file
- To encrypt and decrypt a string using DES-EDE in CBC mode:
cryptest t
- To encrypt or decrypt a file
cryptest e|d input output
- To share a file into shadows:
cryptest s <pieces> <pieces-needed> file
(make sure file has no extension, if you re running this under DOS)
- To reconstruct a file from shadows:
cryptest j output file1 file2 [....]
- To gzip a file:
cryptest z <compression-level> input output
- To gunzip a file:
cryptest u input output
- To run validation tests:
cryptest v
- To run benchmarks:
cryptest b [time for each benchmark in seconds]
標簽：
Cryptographic
Primitives
generate
Library
上傳時間：
2015-07-16
上傳用戶：wqxstar
