MC74HCT273A

MOTOROLA SEMICONDUCTOR TECHNICAL DATA 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 MC74HCT273A N SUFFIX PLASTIC PACKAGE CASE 738–03 1 20 20 1 DW SUFFIX SOIC PACKAGE CASE 751D–04 ORDERING INFORMATION MC74HCTXXXAN MC74HCTXXXADW Plastic SOIC PIN ASSIGNMENT RESET Q0 D0 D1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC Q7 D7 D6 Q6 Q5 D5 D4 Q4 CLOCK LOGIC DIAGRAM 3 4 7 8 13 14 17 18 19 11 2 5 6 9 12 15 16 Q1 Q2 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Reset L H H H H NONINVERTING OUTPUTS D0 D1 D2 DATA INPUTS D3 D4 D5 D6 D7 CLOCK D2 D3 Q3 GND FUNCTION TABLE Inputs Clock X D X H L X X Output Q L H L No Change No Change RESET 1 PIN 20 = VCC PIN 10 = GND L X = Don’t Care Z = High Impedance 2/97 © Motorola, Inc. 1997 1 REV 7 ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎ...