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MC74HCT273A Datasheet(PDF) 1 Page - Motorola, Inc |
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MC74HCT273A Datasheet(HTML) 1 Page - Motorola, Inc |
1 / 5 page ![]() MOTOROLA SEMICONDUCTOR TECHNICAL DATA 1 REV 7 © Motorola, Inc. 1997 2/97 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 MC74HCT273A 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 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 DW SUFFIX SOIC PACKAGE CASE 751D–04 N SUFFIX PLASTIC PACKAGE CASE 738–03 ORDERING INFORMATION MC74HCTXXXAN MC74HCTXXXADW Plastic SOIC 1 20 1 20 |