SN74ACT74DR
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Texas Instruments SN74ACT74DR

Manufacturer No:
SN74ACT74DR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC FF D-TYPE DUAL 1BIT 14SOIC
Delivery:
Payment:
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Product Introduction

Overview

The SN74ACT74DR is a dual positive-edge-triggered D-type flip-flop integrated circuit produced by Texas Instruments. This device is part of the ACT74 series, known for its high-speed and low-power consumption. It operates within a voltage range of 4.5V to 5.5V, making it compatible with TTL (Transistor-Transistor Logic) voltage levels. The SN74ACT74DR is available in a 14-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for a variety of digital logic applications.

Key Specifications

Parameter Unit Min Typ Max
VCC (Supply Voltage) V 4.5 5.5
VIH (High-level Input Voltage) V 2
VIL (Low-level Input Voltage) V 0.8
IOH (High-level Output Current) mA -24
IOL (Low-level Output Current) mA 24
TA (Operating Free-Air Temperature) °C -40 85
fclock (Clock Frequency) MHz 85 145
tPLH (Propagation Delay Time, PRE or CLR to Q or Q) ns 1 11.5
tPHL (Propagation Delay Time, PRE or CLR to Q or Q) ns 1 12.5

Key Features

  • Operates from 4.5V to 5.5V supply voltage
  • Inputs accept voltages up to 5.5V
  • Maximum propagation delay time of 10.5 ns at 5V
  • TTL-voltage compatible inputs
  • Dual positive-edge-triggered D-type flip-flops
  • Available in various packages including SOIC, SSOP, PDIP, and TSSOP
  • High clock frequency up to 145 MHz

Applications

The SN74ACT74DR is widely used in various digital logic applications, including:

  • Sequential logic circuits
  • Counters and shift registers
  • Memory circuits
  • Timing and control circuits
  • General-purpose digital logic designs

Q & A

  1. What is the operating voltage range of the SN74ACT74DR?

    The SN74ACT74DR operates from 4.5V to 5.5V.

  2. What is the maximum clock frequency of the SN74ACT74DR?

    The maximum clock frequency is up to 145 MHz.

  3. What are the package options available for the SN74ACT74DR?

    The device is available in SOIC, SSOP, PDIP, and TSSOP packages.

  4. What is the propagation delay time of the SN74ACT74DR?

    The maximum propagation delay time is 10.5 ns at 5V.

  5. Are the inputs of the SN74ACT74DR TTL-voltage compatible?
  6. What is the recommended operating temperature range for the SN74ACT74DR?

    The recommended operating temperature range is from -40°C to 85°C.

  7. How should unused inputs be handled in the SN74ACT74DR?

    Unused inputs should be tied to either GND or VCC to prevent floating and ensure stable operation.

  8. What is the high-level output current capability of the SN74ACT74DR?

    The high-level output current capability is up to -24 mA.

  9. What is the low-level output current capability of the SN74ACT74DR?

    The low-level output current capability is up to 24 mA.

  10. Is the SN74ACT74DR suitable for high-speed applications?

Product Attributes

Function:Set(Preset) and Reset
Type:D-Type
Output Type:Complementary
Number of Elements:2
Number of Bits per Element:1
Clock Frequency:210 MHz
Max Propagation Delay @ V, Max CL:7.5ns @ 5V, 50pF
Trigger Type:Positive Edge
Current - Output High, Low:24mA, 24mA
Voltage - Supply:4.5V ~ 5.5V
Current - Quiescent (Iq):2 µA
Input Capacitance:3 pF
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Supplier Device Package:14-SOIC
Package / Case:14-SOIC (0.154", 3.90mm Width)
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Similar Products

Part Number SN74ACT74DR SN74AC74DR SN74ACT74D SN74ACT74DBR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active
Function Set(Preset) and Reset Set(Preset) and Reset Set(Preset) and Reset Set(Preset) and Reset
Type D-Type D-Type D-Type D-Type
Output Type Complementary Complementary Complementary Complementary
Number of Elements 2 2 2 2
Number of Bits per Element 1 1 1 1
Clock Frequency 210 MHz 160 MHz 210 MHz 210 MHz
Max Propagation Delay @ V, Max CL 7.5ns @ 5V, 50pF 6ns @ 5V, 50pF 7.5ns @ 5V, 50pF 11ns @ 5V, 50pF
Trigger Type Positive Edge Positive Edge Positive Edge Positive Edge
Current - Output High, Low 24mA, 24mA 24mA, 24mA 24mA, 24mA 24mA, 24mA
Voltage - Supply 4.5V ~ 5.5V 2V ~ 6V 4.5V ~ 5.5V 4.5V ~ 5.5V
Current - Quiescent (Iq) 2 µA 2 µA 2 µA 2 µA
Input Capacitance 3 pF 3 pF 3 pF 3 pF
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Supplier Device Package 14-SOIC 14-SOIC 14-SOIC 14-SSOP
Package / Case 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 14-SSOP (0.209", 5.30mm Width)

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