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HCT273 Datasheet(PDF) 1 Page - ON Semiconductor |
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HCT273 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2000 March, 2000 – Rev. 8 1 Publication Order Number: MC74HCT273A/D MC74HCT273A Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs High–Performance Silicon–Gate CMOS The MC74HCT273A may be used as a level converter for interfacing TTL or NMOS outputs to High–Speed CMOS inputs. The HCT273A is identical in pinout to the LS273. This device consists of eight D flip–flops with common Clock and Reset inputs. Each flip–flop is loaded with a low–to–high transition of the Clock input. Reset is asynchronous and active low. • Output Drive Capability: 10 LSTTL Loads • TTL/NMOS Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS and TTL • Operating Voltage Range: 4.5 to 5.5 V • Low Input Current: 1.0 µA • In Compliance with the Requirements Defined by JEDEC Standard No. 7A • Chip Complexity: 284 FETs or 71 Equivalent Gates LOGIC DIAGRAM DATA INPUTS D0 11 CLOCK D1 D2 D3 D4 D5 D6 D7 18 17 14 13 8 7 4 3 1 RESET 19 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 16 15 12 9 6 5 2 PIN 20 = VCC PIN 10 = GND NONINVERTING OUTPUTS FUNCTION TABLE Inputs Output Reset Clock D Q LX X L HH H HL L H L X No Change H X No Change X = Don’t Care Z = High Impedance http://onsemi.com MARKING DIAGRAMS 1 20 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week SOIC WIDE–20 DW SUFFIX CASE 751D HCT273A AWLYYWW PDIP–20 N SUFFIX CASE 738 1 20 MC74HCT273AN AWLYYWW 1 20 1 20 Device Package Shipping ORDERING INFORMATION MC74HCT273AN PDIP–20 1440 / Box MC74HCT273ADW SOIC–WIDE 38 / Rail MC74HCT273ADWR2 SOIC–WIDE 1000 / Reel PIN ASSIGNMENT Q2 D1 D0 Q0 RESET GND Q3 D3 D2 Q1 5 4 3 2 1 10 9 8 7 6 14 15 16 17 18 19 20 11 12 13 Q6 D6 D7 Q7 VCC CLOCK Q4 D4 D5 Q5 |
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