74HC73 Dual JK Flip-flop Trigger: Pinout, Equivalent and Datasheet

PCB Symbol

PCB Footprint

3D Model

The 74HC73 is a dual negative edge triggered JK flip-flop with individual J, K, clock and reset inputs and complementary nQ output. The J and K inputs must be stable one set-up time prior to the HIGH-to-LOW clock transition for predictable operation. (nR) is asynchronous, when LOW it overrides the clock and data inputs, forcing the nQ output LOW and the nQ output HIGH. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_CC.

This article provides you with a basic overview of the 74HC73, including its pin descriptions, features and specifications, etc., to help you quickly understand what 74HC73 is.

● Low-power dissipation

● Complies with JEDEC standard no. 7A

● ESD protection:

   ◆ HBM JESD22-A114F exceeds 2000 V

   ◆ MM JESD22-A115-A exceeds 200 V

● Multiple package options

● Specified from ﹣40 ℃ to ﹢80 ℃ and from ﹣40 ℃ to ﹢125 ℃ 

Nexperia USA Inc. 74HC73D,653 technical specifications, attributes, parameters and parts with similar specifications to Nexperia USA Inc. 74HC73D,653.

Functional diagram

Logic symbol

IEC logic symbol

Logic diagram (one flip-flop)

Package outline

Nexperia is dedicated to Discretes, Logic and MOSFETs devices. This new company became independent at the beginning of 2017. Nexperia is a leading expert in the high-volume production of essential semiconductors, components that are required by every electronic design in the world. The company’s extensive portfolio includes diodes, bipolar transistors, ESD protection devices, MOSFETs, GaN FETs and analog & logic ICs. With decades of experience in supplying to the world’s leading companies, Nexperia has over 12,000 employees across Asia, Europe and the US. Nexperia creates efficient devices with best-in-class Quality. It has an extensive portfolio, produced to meet the stringent standards set by the Automotive industry. Its belief that efficiency wins is backed by flawless execution that meets the stringent requirements of the market and customers. Every Nexperia employee is tasked with the responsibility of maintaining Quality. Nexperia is a worldwide network built on passion and commitment to our work, belief in our goals and a drive to succeed.