CD74HCT574QPWREP

$2.31

Description：IC FF D-TYPE SNGL 8BIT 20TSSOP
Series：74HCT
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:fad22b1553e1 Category: Flip Flops Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC FF D-TYPE SNGL 8BIT 20TSSOP
Series：74HCT
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Standard
Type：D-Type
Output Type：Tri-State, Non-Inverted
Number of Elements：1
Number of Bits per Element：8
Clock Frequency：60 MHz
Max Propagation Delay @ V, Max CL：33ns @ 4.5V, 50pF
Trigger Type：Positive Edge
Current - Output High, Low：6mA, 6mA
Voltage - Supply：4.5V ~ 5.5V
Current - Quiescent (Iq)：8 µA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：20-TSSOP
Package / Case：20-TSSOP (0.173", 4.40mm Width)
Input Capacitance：10 pF
Grade：-
Qualification：-

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CD74HCT574QPWREP

Overview

The CD74HCT574QPWREP is an octal edge-triggered D-type flip-flop from Texas Instruments, featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum clock frequency of 26.5 MHz. The device exhibits a typical propagation delay of 22 ns at 5 V and provides output drive currents of ±6 mA. Packaged in a 20-pin TSSOP, it functions across an extended temperature range of -55°C to +125°C with low static current consumption.

Feature Summary

Octal edge-triggered D-type flip-flop architecture with three-state outputs
Compatible with TTL input voltages for direct interface with logic systems
Extended industrial temperature range supporting harsh operating environments

Applications

Buffer registers and storage applications
I/O port interfacing
Bidirectional bus drivers

Procurement Notes

Verify the specific suffix 'QP' indicates military-grade or enhanced reliability specifications compared to standard commercial variants. Confirm the 'REP' designation aligns with current manufacturing availability and lead times. Ensure the TSSOP-20 package matches the target PCB footprint and thermal requirements. Cross-reference the datasheet revision date to confirm compliance with current RoHS and REACH standards.

Selection Notes

Select this component when high-speed data latching is required with TTL-compatible inputs. The wide operating temperature range makes it suitable for demanding industrial applications. Consider the three-state output capability for efficient bus sharing. Evaluate the power consumption against system constraints, noting the low static current characteristics inherent to the HCT series technology.

Part Context

This part belongs to the SN74HCT574 family of octal D-type flip-flops. It shares functional similarities with other members like the CD74HCT574PWR but differs in packaging and potentially qualification levels. The HCT series bridges CMOS speed with TTL compatibility, offering a robust solution for digital logic design requiring reliable data storage and transfer capabilities.