74HCT574N

Octal D-flip-flop IC for high-speed digital circuitr
3,710 Effective Inventory

74HCT574N

Effective Inventory3,710

Octal D-flip-flop IC for high-speed digital circuitr

  • Manufacturer Part # : 74HCT574N

  • Package/Case: 20-DIP

  • Part Status : OBSOLETE

  • Brand: Texas Instruments

  • Product Categories : Flip Flops

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Shipping & Payment

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Service & Packaging

Service & Packaging

About After Sales Service

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74HCT574N DataSheet
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Details

GENERAL DESCRIPTIONThe 74HC/HCT574 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.FEATURES• 3-state non-inverting outputs for bus oriented applications• 8-bit positive edge-triggered register• Common 3-state output enable input• Independent register and 3-state buffer operation• Output capability: bus driver• ICC category: MSI

Key Features

  • 3-state non-inverting outputs for bus oriented applications
  • 8-bit positive edge-triggered register
  • Common 3-state output enable input
  • Independent register and 3-state buffer operation
  • Output capability: bus driver
  • ICC category: MSI

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code Yes Part Life Cycle Code Transferred
Reach Compliance Code HTS Code ! 8542.39.00.01
JESD-30 Code R-PDIP-T20 JESD-609 Code e4
Load Capacitance (CL) 50 pF Logic IC Type D FLIP-FLOP
Max Frequency@Nom-Sup 24000000 Hz Max I(ol) 0.006 A
Number of Functions 8 Number of Terminals 20
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Output Characteristics 3-STATE Package Body Material PLASTIC/EPOXY
Package Code DIP Package Equivalence Code DIP20,.3
Package Shape RECTANGULAR Package Style IN-LINE
Power Supplies ! 5 V Qualification Status ! Not Qualified
Supply Voltage-Nom (Vsup) 5 V Surface Mount ! NO
Technology CMOS Temperature Grade ! INDUSTRIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au) Terminal Form ! THROUGH-HOLE
Terminal Pitch ! 2.54 mm Terminal Position DUAL
Trigger Type POSITIVE EDGE Series 74HCT
Package Tube Product Status Obsolete
Function Standard Type D-Type
Output Type Tri-State, Non-Inverted Number of Elements 1
Number of Bits per Element 8 Clock Frequency 76 MHz
Max Propagation Delay @ V, Max CL 33ns @ 4.5V, 50pF Current - Output High, Low 6mA, 6mA
Voltage - Supply 4.5V ~ 5.5V Current - Quiescent (Iq) 8 µA
Input Capacitance ! 3.5 pF Operating Temperature ! -40°C ~ 125°C (TA)
Mounting Type Through Hole Supplier Device Package 20-DIP
Package / Case 20-DIP (0.300", 7.62mm) Base Product Number 74HCT574

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification 74HCT574N PDF Download

FAQs

What is 74HCT574N?

The 74HCT574N is an octal D-type flip-flop with 3-state outputs, designed for general-purpose storage applications in digital systems. It is commonly used for data storage, transfer, and synchronization in microprocessor and microcontroller-based systems.

How Does 74HCT574N Work?

The 74HCT574N functions as a bank of eight D-type flip-flops, each capable of storing a single bit of data. The device features 3-state outputs, allowing the outputs to be disconnected from the bus, reducing the possibility of contention when multiple devices are connected to the same bus. The flip-flops can be clocked to latch the input data, and the stored data can then be output onto the bus.

How Many Pins does 74HCT574N Have and What are the Functions of the Pinout Configuration?

The 74HCT574N is housed in a 20-pin DIP (Dual In-line Package) package. The pinout configuration includes:

  • OE (Output Enable) 1-8: 3-state output enable inputs for each flip-flop.
  • D (Data) 1-8: Data inputs for each flip-flop.
  • Q (Output) 1-8: Data outputs for each flip-flop.
  • CP (Clock Pulse): Clock input for latching data.
  • G (Ground): Ground reference.
  • VCC (Supply Voltage): Power supply input.

What are the Pros and Cons of 74HCT574N?

Pros:

  • High-Speed Operation: Capable of handling high-frequency clock inputs for rapid data transfers.
  • 3-State Outputs: Allows for bus sharing and reduces the possibility of bus contention.
  • Wide Operating Voltage Range: Operates over a wide voltage range, making it suitable for different system designs.
  • Simple Interface: The device has a straightforward interface for ease of use in digital systems.

Cons:

  • Power Consumption: May consume relatively high power compared to some low-power flip-flop alternatives.
  • Package Size: The 20-pin DIP package may occupy more board space compared to surface-mount alternatives.
  • No Asynchronous Clear Function: Lacks an asynchronous clear input, which may be required in some applications.

Are There Any Equivalents/Alternatives to 74HCT574N for Recommendation?

  • The SN74HC574N from Texas Instruments is a pin-compatible alternative to the 74HCT574N.
  • Alternatives to the 74HCT574N include the MC74ACT574 from ON Semiconductor and the 74F574 from Fairchild Semiconductor.

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