Details, datasheet, quote on part number: 74F521
CategoryLogic => Comparators => Bipolar->F Family
TitleBipolar->F Family
Description8-Bit Identity Comparator
CompanyFairchild Semiconductor
DatasheetDownload 74F521 datasheet
Cross ref.Similar parts: 54F521/BRA, 54F521/BRAJC, 54F521/BRBJC, M38510/34701BRA, S54F521F/883B, S54F521F/883C, SN54F521J, SN74F521D, SN74F521D3, SN74F521DW
Find where to buy


Features, Applications

The is an expandable 8-bit comparator. It compares two words up to eight bits each and provides a LOW output when the two words match bit for bit. The expansion input IA=B also serves as an active LOW enable input.

s Compares two 8-bit words 6.5 ns typ s Expandable to any word length s 20-pin package

Order Number 74F521MSA 74F521PC Package Number MSA20 N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.

U.L. Pin Names A0A7 B0B7 IA=B OA=B Word A Inputs Word B Inputs Expansion or Enable Input (Active LOW) Identity Output (Active LOW) Description Input IIH/IIL HIGH/LOW Output IOH/IOL A/-0.6 mA

H = HIGH Voltage Level L = LOW Voltage Level Note = B2, etc.

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to Ground Pin Input Voltage (Note 3) Input Current (Note 3) Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output 3-STATE Output Current Applied to Output in LOW State (Max) twice the rated IOL (mA)

Note 2: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Note 3: Either voltage limit or current limit is sufficient to protect inputs.

Symbol VIH VIL VCD VOH VOL IIH IBVI ICEX VID IOD IIL IOS ICCH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current Output Short-Circuit Current Power Supply Current VCC 5% VCC 10% VCC Min 0.8 -1.2 Typ Max Units A mA Min Max 0.0 Max VCC Conditions Recognized as a HIGH Signal Recognized as a LOW Signal IIN -18 mA IOH -1 mA IOH -1 mA IOL 20 mA VIN = 2.7V VIN = 7.0V VOUT = VCC IID 1.9 A All Other Pins Grounded VIOD 150 mV All Other Pins Grounded VIN = 0.5V VOUT VO = HIGH


Related products with the same datasheet
Some Part number from the same manufacture Fairchild Semiconductor
74F521CW 8-Bit Identity Comparator
74F524 8-Bit Registered Comparator
74F533 Octal Transparent Latch With 3-STATE Outputs
74F534 Octal D-type Flip-flop With 3-STATE Outputs
74F537 1-of-10 Decoder With 3-STATE Outputs
74F538 1-of-8 Decoder With 3-STATE Outputs
74F539 Dual 1-of-4 Decoder With 3-STATE Outputs
74F540 Octal Buffer/line Driver With 3-STATE Outputs (Inverting)
74F541 Octal Buffer/line Driver With 3-STATE Outputs
74F543 Octal Registered Transceiver
74F545 Octal Bidirectional Transceiver With 3-STATE Inputs/outputs
74F552 Octal Registered Transceiver With Parity And Flags
74F563 Octal D-type Latch With 3-STATE Outputs
74F564 Octal D-type Flip-flop With 3-STATE Outputs
74F569 4-Bit Bidirectional Decade Counter With 3-STATE Outputs
74F573 Octal D-type Latch With 3-STATE Outputs
74F574 Octal D-type Flip-flop With 3-STATE Outputs
74F579 8-Bit Bidirectional Binary Counter With 3-STATE Outputs

74ABT374C : CMOS/BiCMOS->ABT/BCT Family Octal D-type Flip-flop With 3-STATE Outputs

FDG6304P : Dual P-channel Digital Fet

FJX3002R : Epitaxial NPN Epitaxial Silicon Transistor

FPAL20SL60 : 20A, Smart Power Module (SPM)

KA5M0365R : SPST 3A/650V 70KHz Power Switch

KA7806 : 3-Terminal 1A Positive Voltage Regulator

KH220HXC : 190MHz, Fast Settling, Hybrid op Amp

LM331 : Voltage to Frequency Converter

MM74HCT541SJ : CMOS/BiCMOS->HC/HCT Family Octal 3-STATE Buffer

BCW71_1 : NPN General Purpose Amplifier

FDY3000NZ_07 : Dual N-channel 2.5V Specified Powertrench Mosfet

FSB70450 : Motor / Motion / Ignition Controllers & Drivers 500V, 1.9ohm, PQFN Smart power module Fairchild Semiconductor Motion SPM Modules integrate drive and protection circuitry into a single package. Use the Motion SPM Modules to simplify and accelerate designs while optimizing efficiency. They are sometimes referred to as Intelligent Power Modules (IPM). A full line of highly integrate

Same catergory

5962-8681901EA : Inverting Buffers and Drivers. ti CD54HC4049, High Speed CMOS Logic Hex Inverting Buffers.

74VHC245 : Bus Oriented Circuits. Octal Bidirectional Transceiver With 3-STATE Outputs.

DM9324J/883 : Military/Aerospace->TTL. DM9324 - 5-Bit Comparator, Package: Cerdip, Pin Nb=16.

HCF4052 : HCF->CMOS 4000B Series. Differential 4 Channle Analog Multiplexer Demultiplexer.

HD74AC112 : J-K Flip-Flops. Dual J-k Flip-flops With Preset And Clear. Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. The semiconductor operations of Mitsubishi Electric and Hitachi were transferred to Renesas Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog and discrete devices, and memory chips.

IDT54FCT162H245 : 16/32-Bit Bus Transceiver->CMOS/BiCMOS->FCT/FCT-T. Fast CMOS 16-bit Bidirectional Transceiver.

IDT74FCT16374 : CMOS/BiCMOS->FCT/FCT-T Family. Fast CMOS 16-bit Register (3-state).

MC74VHC1G00DFT1 : 2-input NAND Gate. The is an advanced high speed CMOS 2input NAND gate fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output.

PI5C32202 : Bus Oriented Circuits. 32-Bit 100 Ohm GTL Terminator Bus Switch. RON is 1000 typical connected to 1.5V VBIAS Low Power50W Switching Speed7.5ns max. Channel On Capacitance: 8pF VCC Operating Range: 5% ESD > 2000VHuman Body Model Packages available: 56-pin TSSOP Pericoms a 32-bit bus switch. Industry leading advantages include very low power, and low I/O capacitance. When the bus switch is enabled (ENx it is terminated.

SN74LV04A : CMOS/BiCMOS->LV/LVQ/LVX Family->Low Voltage. Hex Inverters. to 5.5-V VCC Operation Max tpd 5 V Latch-Up Performance Exceeds 250 mA Per JESD 17 Typical VOLP (Output Ground Bounce) V at VCC = 25C Typical VOHV (Output VOH Undershoot) V at VCC = 25C Support Mixed-Mode Voltage Operation on All Ports Ioff Supports Partial-Power-Down Mode Operation ESD Protection Exceeds JESD 2000-V Human-Body Model 200-V Machine.

SN74LVC3G06DCTR : Triple Gates. ti SN74LVC3G06, Triple Inverter Buffer/driver With Open-drain Output.

TC74ACT138FN : TC74ACT Series. Function = 3-to-8 Line Decoder ;; Pins = 16.

ST2189 : Level Translators 8-bit dual supply level translator without direction control pin.

HD74AC00FP : AC SERIES, QUAD 2-INPUT NAND GATE, PDSO14. s: Gate Type: NAND ; Supply Voltage: 3.3V ; Logic Family: CMOS ; Inputs: 2 ; Propagation Delay: 10 ns ; Operating Temperature: -40 to 85 C (-40 to 185 F) ; Pin Count: 14 ; IC Package Type: Other, FP-14DA.

TC74HC151AF(TP1) : HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16. s: Output Characteristics: Complementary Output ; Supply Voltage: 5V ; Package Type: SOP, 0.300 INCH, PLASTIC, SOP-16 ; Logic Family: CMOS ; Number of Pins: 16 ; Inputs: 8 ; Propagation Delay: 45 ns ; Operating Temperature: -40 to 85 C (-40 to 185 F).

933372740653 : 4000/14000/40000 SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16. s: Register Type: Parallel In / Serial Out ; Shift Direction: Right ; Supply Voltage: 5V ; Package Type: Other, PLASTIC, SOT-109-1, SO-16 ; Logic Family: CMOS ; Pin Count: 16 ; Number of units in IC: 1 ; Number of Bits (Stages): 8 ; Clock Frequency: 20 MHz ; Propagation.

0-C     D-L     M-R     S-Z