Electronics Components Datasheets Page for Electrical Engineering Students

Please see room Bannan 218 for parts not listed.

Logic 74xxxx Series

References: http://en.wikipedia.org/wiki/List_of_7400_series_integrated_circuits

http://en.wikipedia.org/wiki/7400_series

74LS00 Quad 2 input NAND gate	74LS85 4 bit magnitude comparator	74176 Decade Counter
74LS01 Quad 2 input NAND gate (OC)	74LS86 Quad 2 input XOR gate	74177Binary Counter
74LS02 Quad 2 input NOR gate	74LS90 Decade counter	74LS191 4 bit binary up / down counter
74LS03 Quad 2 input NAND gate (OC)	74LS91 8-bit shift register	74LS192 BCD up / down counter
74LS04 Hex Inverter	74LS92 Divide by 12 counter	74LS193 4 bit binary up / down counter
74LS05 Hex Inverter (OC)	74LS93 4-bit Binary counter	74LS195 4 bit shift register
74LS06 Hex Inverter buffer/driver	74LS95 4-bit shift register	74LS196 Presettable decade counter
74LS08 Quad 2 input AND	74LS107 Dual JK flip-flops with clear	74LS197 Presettable binary counter
74LS09 Quad 2 input AND gate (OC)	74LS109 Dual JK pos edge trig flip flop	74199 8-bit shift register
74LS10 Triple 3 input NAND gate	74LS112 Dual JK neg edge trig flip flop	74LS221 Dual monostable multivibrator
74LS11 Triple 3 input AND gate	74121 Monostable multivibrator	74S225 16x5 FIFO memory
74LS12 Triple 3 input NAND gate (OC)	74LS122 Retriggerable Monostable multivibrator	74LS240 Octal buffer/line driver
74LS13 Dual 4-input NAND gate Schmitt trigger	74LS123 Retriggerable Monostable multivibrator	74LS241 Octal 3-state buffer
74LS14 Hex Inverter Schmitt trigger	74LS125 Quad 3-state Buffer	74LS244 Octal buffer/line driver
74LS15 Triple 3 input AND gate (OC)	74LS132 Quad 2 input NAND gate Schmitt trigger	74LS245 Octal bus tranciever
7416 Hex Inverter (OC)	74S133 13 input NAND	74LS251 Data selector / MUX
74LS20 Dual 4 input NAND gate	74LS136 Quad 2 input XOR (O.C)	74LS257 Quad 2 input mux 3-state
74LS21 Dual 4 input AND gate	74LS138 3-to-8 line decoder/demux	74LS259 8 bit addresable latch
74LS22 Dual 4 input NAND gate (OC)	74LS139 Dual 1-of-4 decoder/demux	74LS266 Quad 2 input XNOR (O.C)
7425 Dual 4 input NOR gate with strobe	74LS147 10 line - 4 line octal priority encoder	74LS273 Octal D type flip flop with clear
74LS27 Triple 3 input NOR gate	74LS148 8 line - 3 line octal priority encoder	74LS280 9 bit odd / even parity generator
74LS30 8 input NAND gate	74150 Data selector/mux	74LS298 Quad 2 input MUX with storage
74LS32 Quad 2 input OR gate	74LS151 8 input MUX	74LS299 8 bit universal shift register
74LS38 Quad 2 input NAND gate Buffer (OC)	74LS153 Dual 4-to-1 Multiplexer	74LS323 8-Bit Shift register
7442 BCD to DEC decoder	74LS154 4-to16 decoder/demux	74LS367 Hex bus driver
7445 BCD to DEC decoder	74LS155 Dual 2 line to 4 line decoder / demux	74LS368 Hex bus driver with invereters
74LS47 BCD to 7 seg decoder/driver (OC)	74LS156 Dual 2 line to 4 line decoder / demux (O.C)	74LS373 Octal transparent latch
74LS48 BCD to 7 seg decoder/driver (OC)	74LS157 Quad 2 input MUX	74LS374 Octal D type flip flop 3-state
7451 AND/OR/INVERT gate	74LS158 Quad 2 input MUX with invereted outputs	74LS390 Dual 4 bit decade counter
74LS54 4-wide AND/OR/INVERT gate	74LS160 BCD decade counter	74LS393 Dual 4 bit binary counter
74F64 Pos 4-2-3-2 input AND/OR/INVERT gate	74LS161 Synchronous 4 bit binary counter	74LS395 4 bit shift register
7470 JK flip flop	74LS162 BCD decade counter	74LS540 Octal buffer 3-state
7472 JK M/S flip flop	74LS163 Asynchronous 4 bit binary counter	74LS541 Octal buffer 3-state outputs
74LS73 Dual JK flip flop with clear	74LS164 8 bit SIPO shift register
74LS74 Dual D-Type flip-flops with preset and clear	74LS165 8 bit PISO shift register
74LS75 4 bit bi-stable latch	74LS166 8 bit PISO shift register
74LS76 Dual JK flip-flops with preset and clear	74LS 174 Hex D type flip flop with clear
74LS83 4 bit full adder	74LS175 Quad D type flip flop with clear

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Microprocessor

PIC16F84A Datasheet

>Get Started with your first PIC program<

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Linear ICs, Transistors, Active Components

555 Timer / Oscillator	741 Op-Amp
PN2222A NPN Transistor	2N3904 NPN Transistor	2N3906 PNP Transistor
MPQ2222 NPN Transistor	MPQ2907 PNP Transistor	2N3819 JFET
UAF42 Universal Active Filter

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Optoelectronics

LED Polarity lab led polarity

7-Segment Display Datasheet

Other reference: http://en.wikipedia.org/wiki/Seven-segment_display

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IMPORTANT: Capacitors with values below 100 pf may be marked two ways: Either with just two digits (22 pF = "22") or three digits (22 pF = "220",). In the latter case the third digit signifies the number of zeros following the first two digits. "220" = 22 pF, "221" = 220 pF, "222" = 2200 pF.

VALUE	MARKING	VALUE	MARKING	VALUE	MARKING
1pf; 3pf; 5pf	1; 3; 5	2.7, 3 or 3.3 pF can be interchanged with each other. 4.7 or 5 pF can be interchanged with each other.
10 pf	10or 100	0.001 uF	102	0.10 uF	104
12 pf	12or 120	0.0012uF (1200pf)	122	0.12 uF	124
15 pf	15or 150	0.0015uF	152	0.15 uf	154
18 pf	18or 180	0.0018 uF (1800pf)	182	0.18 uF	184
22 pf	22or 220	0.0022uF	222	0.22 uF	224
27 pf	27or 270	0.0027uF	272	0.27 uF	274
33 pf	33or 330	0.0033 uF	332	0.33 uF	334
39 pf	39or 390	0.0039uF	392	0.39 uF	394
47 pf	47or 470	0.0047uF	472	0.47 uF	474
58 pf	58or 580	0.0056uF	562	0.56 uF	564
68 pf	68or 680	0.0068uF	682	0.68 uF	684
82 pf	82or 820	0.0082uF	822	0.82 uF	824
100 pf	101	0.01 uF	103	1uF	105 or 1uf
120 pf	121	0.012 uF	123
150 pf	151	0.015 uF	153
180 pf	181	0.018 uF	183
220 pf	221	0.022 uF	223
270 pf	271	0.027 uF	273
330 pf	331	0.033 uF	333
390 pf	391	0.039 uF	393
470 pf	471	0.047 uF	473
560 pf	561	0.056 uF	563
680 pf	681	0.068 uF	683
820 pf	821	0.082 uF	823

Polarized Capacitors

Capacitors having a value of about 0u47 (0.47 micro-farad) or greater are often Electrolytic or Tantalum (polarized) types. This means that it is very important which way round they are connected. Polarized capacitorsare almost alwaysmarked with the correct polarity on the body of the component. If two component leads are of different lengths then the longer of the two component leads is usually the + (positive) terminal. Non-polarized capacitors may be fitted to the PCB either way round, in the same way as resistors.

Surest way to kill an electrolytic capacitor is to reverse polarity at working voltage, self destruction will occur and violent.

EE_Dept

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Resistors & Potentiometers

References: http://en.wikipedia.org/wiki/Resistors

Through-Hole Resistors

Four-color-band axial resistors
Main article: Electronic color code
Four-band identification is the most commonly used color coding scheme on all resistors. It consists of four colored bands that are painted around the body of the resistor. The scheme is simple: The first two numbers are the first two significant digits of the resistance value, the third is a multiplier, and the fourth is the tolerance of the value. Each color corresponds to a certain number, shown in the chart below. The tolerance for a 4-band resistor will be 1%, 5%, or 10%

5-color-band axial resistors
5-band identification is used for higher precision (lower tolerance) resistors (1%, 0.5%, 0.25%, 0.1%), to notate the extra digit. The first three bands represent the significant digits, the fourth is the multiplier, and the fifth is the tolerance. 5-band standard tolerance resistors are sometimes encountered, generally on older or specialized resistors. They can be identified by noting a standard tolerance color in the 4th band. The 5th band in this case is the temperature coefficient

Resistors

Surface Mount Resistors (SMT)

SMT resistors
This image shows two surface mount resistors
Surface mounted resistors are printed with numerical values in a code related to that used on axial resistors. Standard-tolerance Surface Mount Technology (SMT) resistors are marked with a three-digit code, in which the first two digits are the first two significant digits of the value and the third digit is the power of ten (the number of zeroes).

For example:
"334" = 33 × 10,000 ohms = 330 kiloohms
"222" = 22 × 100 ohms = 2.2 kiloohms
"473" = 47 × 1,000 ohms = 47 kiloohms
"105" = 10 × 100,000 ohms = 1 megaohm

Resistances less than 100 ohms are written: 100, 220, 470. The final zero represents ten to the power zero, which is 1. For example:
"100" = 10 × 1 ohm = 10 ohms
"220" = 22 × 1 ohm = 22 ohms
Sometimes these values are marked as "10" or "22" to prevent a mistake.

BSEE Degree SMT Resistor Resistances less than 10 ohms have 'R' to indicate the position of the decimal point (radix point). For example: "R003" = 0.003 ohms. This is very small value, generally used in current sense applications.
"4R7" = 4.7 ohms
"0R22" = 0.22 ohms
"0R01" = 0.01 ohms

Precision resistors are marked with a four-digit code, in which the first three digits are the significant figures and the fourth is the power of ten. For example:
"1001" = 100 × 10 ohms = 1 kiloohm
"4992" = 499 × 100 ohms = 49.9 kiloohm
"1000" = 100 × 1 ohm = 100 ohms

BSEE Degree 000 resistor "0", "000", and "0000" sometimes appear as values on surface-mount zero-ohm links, since these have (approximately) zero resistance.