SN74LS273DWR

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SN74LS273DWR

IC FF D-TYPE SINGLE 8BIT 20SOIC

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規格

Series 74LS
Part Status Active
Function Master Reset
Type D-Type
Output Type Non-Inverted
Number of Elements 1
Number of Bits per Element 8
Clock Frequency 40 MHz
Max Propagation Delay @ V, Max CL 27ns @ 5V, 15pF
Trigger Type Positive Edge
Current - Output High, Low 400µA, 8mA
Voltage - Supply 4.75V ~ 5.25V
Current - Quiescent (Iq) 27 mA
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Supplier Device Package 20-SOIC
Package / Case 20-SOIC (0.295", 7.50mm Width)
Base Product Number 74LS273

概述

Description

The SN74LS273DWR is a high-speed, low-power, octal D flip-flop with a synchronous reset feature. Part of Texas Instruments' LS (Low Power Schottky) logic family, it operates on a 5V supply and is designed for use in digital circuits, providing reliable data storage and transfer. The device captures data on the rising edge of the clock input, ensuring synchronized operation across all flip-flops.
Key features include:
- Eight D flip-flops with individual data inputs and outputs.
- Synchronous reset input that clears all outputs when activated.
- Low power consumption, making it suitable for battery-operated devices.
- High-speed operation, with typical propagation delays around 10 ns.
It is commonly used in applications requiring temporary data storage, such as register files, state machines, and signal processing. The DWR package indicates it comes in a wide body SOIC (Small Outline Integrated Circuit) format, suitable for surface-mount assembly. Overall, the SN74LS273DWR is an essential component in many digital systems for organizing and controlling data flow.

Features

The SN74LS273DWR is a low-power, high-speed octal D-type flip-flop with individual data inputs and outputs. Key features include:
1. Functionality: It captures data on the rising edge of the clock, with asynchronous set and reset capabilities.
2. Input/Output: It consists of eight D flip-flops, each with a data input (D), clock input (CLK), set (S), and reset (R) inputs.
3. Speed: Operates at high speeds, typically with a maximum clock frequency of 20 MHz.
4. Voltage Supply: Designed to operate with a supply voltage of 4.75V to 5.25V, suitable for TTL logic levels.
5. Low Power: Consumes low power, making it ideal for battery-operated devices.
6. Fan-out: Supports a fan-out of 10 LS-TTL loads, providing flexibility in circuit design.
7. Package Type: Available in a 20-pin DIP (Dual In-line Package) for easy integration into circuit boards.
The SN74LS273DWR is widely used in applications requiring data storage and transfer, such as registers, memory buffers, and state machines.

Package

The SN74LS273DWR is packaged in a 20-pin dual in-line package (DIP), specifically in a surface-mount configuration known as TSSOP (Thin Shrink Small Outline Package). This package type allows for efficient space utilization on PCBs while providing good electrical performance.

Pinout

The SN74LS273DWR is a dual 4-bit D-type flip-flop with a total of 16 pins. Its primary function is to store data and is commonly used in applications requiring data storage, synchronization, and timing.
### Pin Count:
- 16 pins
### Functions:
- Data Inputs (D0-D3): 4 data inputs for each flip-flop.
- Clock (CLK): Triggers data capture on the rising edge.
- Clear (CLR): Asynchronously resets the outputs to zero.
- Preset (PR): Asynchronously sets the outputs to one.
- Outputs (Q0-Q3): 4 outputs corresponding to the stored data.
- Complementary Outputs (Q0'-Q3'): Inverted outputs of the stored data.
This device is commonly used in digital circuits for buffering, shifting, and latching data.

Manufacturer

The manufacturer of the SN74LS273DWR is Texas Instruments (TI), a multinational company headquartered in Dallas, Texas. Texas Instruments is a leading designer and manufacturer of semiconductors and various integrated circuits, which are used in a wide range of electronic applications. The company is known for its innovations in analog electronics, digital signal processing, and embedded systems, serving diverse markets including automotive, industrial, consumer electronics, and communications. TI is recognized for its commitment to research and development, contributing significantly to advancements in technology and engineering.

Application

The SN74LS273DWR is a dual D-type flip-flop used in digital circuits for data storage and synchronization. Its application areas include data buffering, temporary data storage, state machines, and implementing registers in microcontroller and microprocessor interfaces. It's commonly found in consumer electronics, communication devices, and industrial control systems for managing sequential logic operations.

Equivalent

The SN74LS273DWR is a quad D-type flip-flop with a clear function. Equivalent products include the SN74HC273, SN74HCT273, and MC14513B. Additionally, other manufacturers may offer similar devices under different part numbers, such as the 74AC273 or 74ACT273 from various semiconductor companies. Always check specifications for compatibility.

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