SN74AHC74DR

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SN74AHC74DR

IC FF D-TYPE DOUBLE 1BIT 14SOIC

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  • Ông. Phần #SN74AHC74DR
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Bảo hành 365 ngày

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Thông số kỹ thuật

Series 74AHC
Part Status Active
Function Set(Preset) and Reset
Type D-Type
Output Type Complementary
Number of Elements 2
Number of Bits per Element 1
Clock Frequency 115 MHz
Max Propagation Delay @ V, Max CL 6.1ns @ 5V, 50pF
Trigger Type Positive Edge
Current - Output High, Low 8mA, 8mA
Voltage - Supply 2V ~ 5.5V
Current - Quiescent (Iq) 2 µA
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Supplier Device Package 14-SOIC
Package / Case 14-SOIC (0.154", 3.90mm Width)
Base Product Number 74AHC74
Input Capacitance 2 pF

Tổng quan

Description

The SN74AHC74DR is a dual D-type flip-flop integrated circuit (IC) designed for high-speed digital logic applications. It operates on a wide voltage range (2V to 5.5V) and features TTL-compatible inputs and outputs, making it suitable for various logic levels. The device has two separate flip-flops that can store one bit of data each, triggered by a rising edge of the clock signal.
Each flip-flop includes a data input (D), clock input (CLK), clear (CLR), and preset (PRE) inputs, allowing for asynchronous operation. The outputs (Q and Q') reflect the state of the inputs after the clock edge, enabling easy data storage and manipulation in sequential logic circuits.
The SN74AHC74DR is ideal for applications in data storage, shift registers, and finite state machines due to its low propagation delay and high noise immunity. Its compact SOIC-14 package ensures efficient PCB design and easy integration into various electronic systems.

Features

The SN74AHC74DR is a dual D-type flip-flop designed for high-speed digital applications. Key features include:
1. Dual Flip-Flops: It contains two independent D-type flip-flops, which can store one bit of data each.
2. Edge-Triggered: The flip-flops are triggered on the rising edge of the clock signal, allowing for synchronous data storage.
3. Asynchronous Set and Reset: Each flip-flop includes asynchronous set (PRE) and reset (CLR) inputs for immediate data control.
4. High Speed: Operates at a maximum clock frequency of up to 100 MHz at Vcc = 5 V.
5. Wide Voltage Range: Compatible with a supply voltage range of 2 V to 5.5 V.
6. Low Power Consumption: Consumes minimal power, making it suitable for battery-operated devices.
7. TTL-Compatible: Outputs are compatible with standard TTL logic levels, ensuring easy integration into various circuits.
8. Package Type: Available in a 14-pin SOIC (Surface Mount) package.
These features make the SN74AHC74DR ideal for applications in data storage, timing circuits, and control systems.

Package

The SN74AHC74DR is packaged in a SOIC (Small Outline Integrated Circuit) package, specifically a 14-pin SOIC with a surface-mount design. This allows for efficient use of board space and improved thermal performance.

Pinout

The SN74AHC74DR is a dual D-type flip-flop with asynchronous clear and preset inputs. It has a total of 14 pins. The pin configuration is as follows:
1. Q1 - Output for the first flip-flop
2. Q1’ - Inverted output for the first flip-flop
3. D1 - Data input for the first flip-flop
4. CLK1 - Clock input for the first flip-flop
5. CLR1 - Asynchronous clear input for the first flip-flop
6. PRE1 - Asynchronous preset input for the first flip-flop
7. GND - Ground
8. VCC - Supply voltage
9. PRE2 - Asynchronous preset input for the second flip-flop
10. CLR2 - Asynchronous clear input for the second flip-flop
11. CLK2 - Clock input for the second flip-flop
12. D2 - Data input for the second flip-flop
13. Q2 - Output for the second flip-flop
14. Q2’ - Inverted output for the second flip-flop
This device is used for storage and transfer of data in digital circuits.

Manufacturer

The SN74AHC74DR is manufactured by Texas Instruments (TI), a leading semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including analog and embedded processing chips, digital signal processors, microcontrollers, and various application-specific integrated circuits (ASICs). Founded in 1930, TI serves diverse markets such as automotive, industrial, and communications. The company is well-known for its innovation in semiconductor technology and solutions, providing essential components for numerous electronic applications.

Application

The SN74AHC74DR is a dual D-type flip-flop used in various digital applications, including data storage, signal synchronization, and frequency division. It is commonly employed in memory devices, shift registers, counters, and state machines. Additionally, it serves in edge-triggered applications in microcontroller interfacing and clocked logic circuits, making it valuable in consumer electronics, automotive systems, and industrial automation.

Equivalent

The SN74AHC74DR is a dual D-type flip-flop. Equivalent products include:
1. 74HC74 - Standard high-speed CMOS version.
2. 74HCT74 - TTL-compatible version.
3. MC74HC74A - Motorola's equivalent.
4. CD74HC74 - Texas Instruments alternate.
Always check specific datasheets for functionality and voltage compatibility.

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