SN74AC74DR

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SN74AC74DR

IC FF D-TYPE DUAL 1BIT 14SOIC

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  • Mfr. Part #SN74AC74DR
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  • Datasheet
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Specifications

Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series 74AC
ProductStatus Active
Function Set(Preset) and Reset
Type D-Type
OutputType Complementary
NumberofElements 2
NumberofBitsperElement 1
ClockFrequency 160 MHz
MaxPropagationDelay@VMaxCL 6ns @ 5V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 24mA, 24mA
Voltage-Supply 2V ~ 6V
Current-Quiescent(Iq) 2 µA
InputCapacitance 3 pF
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
SupplierDevicePackage 14-SOIC

Overview

Description

The SN74AC74DR is a dual D-type flip-flop integrated circuit (IC) from Texas Instruments, designed for high-speed digital applications. It features two independent D flip-flops with asynchronous set and reset inputs, allowing for flexible control over the state of the flip-flops. The "AC" in its name indicates that it operates on a 3 to 5V supply range with high-speed capabilities, making it suitable for modern digital designs.
The device can trigger on the rising edge of a clock signal, capturing the input data on the D pins and outputting it on the Q pins. It is commonly used in memory storage, shift registers, and counters. The "DR" suffix denotes its packaging type, which is a surface-mount "SOIC" (Small Outline Integrated Circuit) with 14 pins.
With a propagation delay typically around 5 ns at 5V, the SN74AC74DR is ideal for applications requiring fast switching speeds. Its robust design and compatibility with various logic families make it a popular choice in consumer electronics, automotive, and industrial applications.

Features

The SN74AC74DR is a dual D-type flip-flop designed for high-speed operation in digital circuits. Key features include:
1. Dual Functionality: Contains two independent D flip-flops, each with a data (D) input, clock (CLK) input, and output (Q).
2. Edge-Triggered: Operates on the rising edge of the clock signal, ensuring reliable data capture.
3. Asynchronous Set and Reset: Each flip-flop has asynchronous set (PRE) and reset (CLR) inputs for immediate state control.
4. High-Speed Performance: Fast propagation delay, supporting high-frequency applications.
5. Wide Supply Voltage Range: Operates within a supply voltage range of 2V to 6V, compatible with various logic levels.
6. Low Power Consumption: Consumes low static and dynamic power, making it suitable for battery-operated devices.
7. TTL-Compatible: Designed to be compatible with TTL logic, facilitating easy integration into existing circuits.
These features make the SN74AC74DR ideal for applications in data storage, timing control, and sequential logic circuits.

Package

The SN74AC74DR is packaged in a small SOIC (Small Outline Integrated Circuit) type, specifically a 14-pin SOIC package. It features a surface mount design suitable for automated assembly and compact applications.

Pinout

The SN74AC74DR is a dual D-type flip-flop integrated circuit with a total of 14 pins. Its primary functions include data storage and synchronization. Each flip-flop has two inputs (D and clock) and two outputs (Q and Q’), allowing it to capture and hold data based on the clock signal.
Pin Count and Functions:
- Total Pins: 14
- Pin Functions:
- 1, 2: Q outputs of Flip-Flop 1 (Q1, Q1’)
- 3, 4: D input and clock input of Flip-Flop 1 (D1, CLK1)
- 5: Clear input for Flip-Flop 1 (CLR1)
- 6: Pre-set input for Flip-Flop 1 (PRE1)
- 7: Ground (GND)
- 8, 9: Q outputs of Flip-Flop 2 (Q2, Q2’)
- 10, 11: D input and clock input of Flip-Flop 2 (D2, CLK2)
- 12: Clear input for Flip-Flop 2 (CLR2)
- 13: Pre-set input for Flip-Flop 2 (PRE2)
- 14: Power supply (VCC)
This device is widely used in digital circuits for memory functions and state storage.

Manufacturer

The SN74AC74DR is manufactured by Texas Instruments (TI), a multinational semiconductor design and manufacturing company. Founded in 1930, Texas Instruments is renowned for its development of analog and embedded processing chips, as well as digital signal processors. The company serves various sectors, including automotive, industrial, communications, and consumer electronics. TI is recognized for its innovation in integrated circuits and is a leading provider of analog and mixed-signal semiconductor solutions. The SN74AC74DR itself is a dual D-type flip-flop, commonly used in digital circuits for data storage and transfer applications.

Application

The SN74AC74DR is a dual D-type flip-flop used in various digital applications, including data storage, frequency division, data synchronization, and state machine design. It is commonly employed in counters, shift registers, and memory devices. Additionally, it serves in clocked sequential circuits for edge-triggered operations, making it suitable for use in microcontroller interfacing, communication systems, and programmable logic devices.

Equivalent

The SN74AC74DR is a dual D-type flip-flop. Equivalent products include:
1. MC74AC74
2. CD74HC74
3. 74HC74
4. 74HCT74
Ensure to check specifications for voltage levels and other features before substituting.

Shipping

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