专题74ls20电压传输特性曲线
资料下载
74LS20中文资料pdf
54/7420双4输入与非门简要说明20 为两组 4 输入端与非门（正逻辑），共有 54/7420、54/74H20、54/74S20、54/74LS20四种线路结构形式，其主要电特性的典型值如下：型 号 tPLH tPH
221次下载
2008-03-22
333 温暖了我的回忆
74ls20.pdf
This device contains two independent gates each of whichperforms the logic NAND function.
24次下载
2008-03-28
233 标点Symbol
74LS688/74LS682/74LS684/74LS68
74LS688/74LS682/74LS684/74LS685/74LS687 pdf datasheet
43次下载
2008-08-06
333 EvilFish
74LS273是什么
74LS273是8位数据/地址锁存器，它是一种带清除功能的8D触发器 ， D0～D7为数据输入端，Q0～Q7为数据输出端，正脉冲触发，低电平清除，常用作数据锁存器,地址锁存器。（1）1脚是复位/MR，低电平有效，当1脚是低电平时，输出脚2（Q0）、5（Q1）、6（Q2）、9（Q3）、12（Q4）、15（Q5）、16（Q6）、19（Q7）全部输出0，即全部复位。（2...
40次下载
2021-07-29
笔画张
74ls160/74ls161/74ls162/74ls163 datasheet
0次下载
2013-11-22
160KB
SN74LS90/SN74LS92/SN74LS93 pdf
The SN74LS90/SN74LS92/SN74LS93 are high-speed4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS90), divide-by-six (LS92) ordivide-by-eight (LS93) s
60次下载
2008-12-01
333 冰山上的来客110
74LS86/DM54LS86/DM74LS86 pdf d
DM54LS86/DM74LS86Quad 2-Input Exclusive-OR GatesGeneral DescriptionThis device contains four independent gates each of whichperforms the logic exclusive-OR function.
27次下载
2008-08-06
133 无畏之猪
电机的外特性曲线是啥
随着电机转速的提升，电机的功率逐渐增大，但在转速n0会达到最大功率，此区域称为恒功率区；电机转矩在转速nmin到转速n0区间保持不变，称为恒转矩区。...
5次下载
2021-06-30
harmonin
54LS175/74LS174/74LS175 pdf datasheet
54LS174/DM54LS174/DM74LS174,54LS175/DM54LS175/DM74LS175 Hex/Quad D Flip-Flops with Clear
General Description
These positive-edge-triggered flip-flops utilize TTL circuitry
to implement D-type flip-flop logic.
92次下载
2008-08-06
133 hitilluminator
SN54LS06, SN74LS06, SN74LS16,p
These hex inverter buffers/drivers feature high-voltage open-collector outputs to interface with high-level circuits (such as MOS), or for driving high-current loads, and also are characterized for use as inverter buffers for driving TT
23次下载
2010-07-13
615 xuanxi2008
74LS51/54LS51/DM74LS51 pdf dat
54LS51/DM74LS51 Dual 2-Wide 2-Input,2-Wide 3-Input AND-OR-INVERT GatesGeneral DescriptionThis device contains two independent combinations ofgates each of which performs the logic AND-OR-INVERTfunction. Each package con
12次下载
2008-08-06
133
电子管特性曲线的应用
电子管的特性曲线实际上很有用处，熟悉了它们的使用方法会在实际工作中带来很大方便，可求出电子管特性手册上没有提供的数据，如一般电子管的特性曲线是取屏极电流较大处
138次下载
2009-12-12
444
74ls芯片资料汇总
1205次下载
2012-04-21
htzhang
74LS74 pdf datasheet
54LS74/DM54LS74A/DM74LS74ADual Positive-Edge-Triggered D Flip-Flopswith Preset, Clear and Complementary OutputsGeneral DescriptionThis device contains two independent positive-edge-triggeredD flip-flops with complementa
83次下载
2008-08-06
133
74LS138数据手册
311次下载
2013-06-19
xgwan
如何对74LS138译码进行实验
51单片机：74LS138译码实验一、实验内容通过单片机P1.2P1.0控制74LS138译码器的使能及译码输入端口，控制其译码输出端口（Y7Y0）。（74LS138译码单元C、B、A分别连接P1.2、P1.1、P1.0。）把译码输出端口Y7Y0连接到L7L0八位LED电平指示输入端口，验证74LS138的逻辑译码功能。二、仿真图三、代码C语言实现：在这里插入代码片```#include #include void
83次下载
2021-07-14
denxinan
74LS85/54LS85/DM54LS85/DM74LS8
54LS85/DM54LS85/DM74LS854-Bit Magnitude ComparatorsGeneral DescriptionThese 4-bit magnitude comparators perform comparison ofstraight binary or BCD codes. Three fully-decoded decisionsabout two, 4-bit words (A, B) are m
22次下载
2008-08-06
133
74ls126 pdf
These bus buffers feature three-state outputsthat, when enabled, have the low impedancecharacteristics of a TTL output with additionaldrive capability at high logic levels to permitdriving heavily loaded bus lines without e
25次下载
2008-05-27
555 SEVEN_POINT
74ls09 pdf
DM74LS09Quad 2-Input AND Gates with Open-Collector OutputsGeneral DescriptionThis device contains four independent gates each of whichperforms the logic AND function. The open-collector outputsrequire external pull-up r
14次下载
2008-06-08
555 冯嘉豪
74ls15 pdf
GUARANTEED OPERATING RANGESSymbol Parameter Min Typ Max UnitVCC Supply Voltage 54SN54/74LS15
9次下载
2008-06-08
666 110495456
74ls244 pdf
54LS244/DM74LS244 Octal TRI-STATEÉBuffers/Line Drivers/Line ReceiversGeneral DescriptionThese buffers/line drivers are designed to improve both theperformance and PC board density of TRI-STATE buffers/drivers
21次下载
2007-12-19
200 万飞168
74ls90 pdf
DM74LS90/DM74LS93Decade and Binary CountersGeneral DescriptionEach of these monolithic counters contains four masterslaveflip-flops and additional gating to provide a divide-bytwocounter and a three-stage binary counter
122次下载
2008-06-29
555
74ls273 pdf
The SN74LS273 is a high-speed 8-Bit Register. The registerconsists of eight D-Type Flip-Flops with a Common Clock and anasynchronous active LOW Master Reset. This device is supplied in a20-pin package featuring 0.3 inch lead sp
119次下载
2008-07-11
443 h1654155279.1886
74ls137 pdf
74ls137 3-LINE TO 8-LINEDECODERS/DEMULTIPLEXERSWITH ADDRESS LATCHES
8次下载
2008-06-10
244 温暖了我的回忆
74ls244 datasheet
the 74ls244 is a semiconductor integrated circuit containing 2 blocks with 3-state non-inverted output and commom output controlling input for all 4 discrete circuits.
62次下载
2010-04-13
444 1054161006
74ls164 pdf
These 8-bit shift registers feature gated serial inputs andan asynchronous clear. A low logic level at either inputinhibits entry of the new data, and resets the first flip-flop tothe low level at the next clock pulse, thus pro
172次下载
2008-04-28
555
74ls160.pdf
74ls160.pdf
BCD DECADE COUNTERS/4-BIT BINARY COUNTERS
The LS160A/161A/162A/163A are high-speed 4-bit synchronous count-
ers. They are edge-triggered, synchronously presettable, and cascadable
MSI bu
90次下载
2008-01-06
333 512041742
74LS32/54LS32 pdf datasheet
54LS32/DM54LS32/DM74LS32Quad 2-Input OR GatesGeneral DescriptionThis device contains four independent gates each of whichperforms the logic OR function.FeaturesY Alternate Military/Aerospace device (54LS32) is avail
15次下载
2008-08-06
133
74LS168/54LS168 pdf datasheet
54LS168 Synchronous Bi-DirectionalBCD Decade CounterGeneral DescriptionThe 54LS168 is a fully synchronous 4-state up/down counterfeaturing a preset capability for programmable operation,carry lookahead for easy cascadin
16次下载
2008-08-06
133 aftvc
74LS379/54LS379 pdf datasheet
54LS379/DM74LS379Quad Parallel Register with EnableGeneral DescriptionThe LS379 is a 4-bit register with buffered common Enable.This device is similar to the LS175 but features the commonEnable rather than common Master
17次下载
2008-08-06
333
PN结伏安特性曲线
第一章PN结伏安特性曲线当加在二极管两端的电压达到0.7V左右时，二极管正向导通；当反向电压超过U（BR）一定值后就会出现齐纳击穿，当反向电压继续增大就会出现雪崩击穿。温度...
16次下载
2021-11-15
柱子图宁
三态门74LS244和锁存器74LS273相关资料推荐
转载请务必保留本文链接接口电路的基本构成CPU通过接口与外部设备的连接示意图如下：负责把信息从外部设备传入 CPU 的接口（端口）叫做输入接口（端口），而将信息从 CPU 输出到外部设备的接口（端口）叫做输出接口（端口）。1)在输入数据时，由于外部设备处理的时间一般比 CPU 要长的多，不可能让 CPU 一直等外设传完数据再工作吧。...
2次下载
2021-12-07
c88348535
74LS38/54LS38 pdf datasheet
54LS38/DM54LS38/DM74LS38Quad 2-Input NAND Bufferswith Open-Collector OutputsGeneral DescriptionThis device contains four independent gates, each of whichperforms the logic NAND function. The open-collector outputsre
19次下载
2008-08-06
133 柳若飘絮
74LS113/54LS113 pdf datasheet
54LS113Dual JK Edge-Triggered Flip-FlopGeneral DescriptionThe 54LS113 offers individual J, K, Set and Clock inputs.When the clock goes HIGH the inputs are enabled and datamay be entered. The logic level of the J and K i
35次下载
2008-08-06
133 鹏崽崽
74LS156/54LS156 pdf datasheet
54LS155/DM54LS155/DM74LS155,54LS156/DM54LS156/DM74LS156Dual 2-Line to 4-Line Decoders/DemultiplexersGeneral DescriptionThese TTL circuits feature dual 1-line-to-4-line demultiplexerswith individual strobes and common bi
17次下载
2008-08-06
133 andy93762
74LS253/54LS253 pdf datasheet
54LS253/DM54LS253/DM74LS253TRI-STATEÉ Data Selectors/MultiplexersGeneral DescriptionEach of these Schottky-clamped data selectors/multiplexerscontains inverters and drivers to supply fully complementary,on-chip,
20次下载
2008-08-06
133
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