SN74LS273DWR

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SN74LS273DWR

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IC FF D-TYPE SINGLE 8BIT 20SOIC

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  • データシート SN74LS273DWR DataSheet

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仕様

属性
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

概要

Description

The SN74LS273DWR is an integrated circuit from Texas Instruments, part of the 74LS series of logic devices. It is an octal D-type flip-flop with a common clock and reset pin. Designed for a wide range of digital applications, it is used primarily for temporary data storage and data transfer tasks in various systems. The device features eight flip-flops, each with an individual data input (D) and a complementary output (Q). All eight flip-flops are controlled by a common clock input, which triggers data transfer on the rising edge, ensuring synchronized operation across all outputs. The asynchronous clear (reset) input can be used to reset all outputs to a low state, regardless of clock input. Its surface-mount package (DWR suffix) makes it suitable for compact circuit designs. The SN74LS273DWR is well-regarded for its fast switching times and low power consumption, making it suitable for use in computers, telecommunications, and various consumer electronics.

Equivalent

The SN74LS273DWR is an octal D-type flip-flop with a direct clear function. Equivalent products with similar functionality include:
1. 74HC273 series from Nexperia or ON Semiconductor
2. CD74HCT273 from Texas Instruments
3. HEF40273B from NXP
4. MC74HC273A from ON Semiconductor
These alternatives are generally pin-compatible and have similar electrical characteristics, but always check the datasheet for specific details and compatibility with your application.

Features

The SN74LS273DWR is an octal D-type flip-flop with a standard logic device from the 74LS series. Key features include:
1. Octal Data Storage: It features eight edge-triggered D-type flip-flops with a common clock input, allowing simultaneous data storage of eight bits.

2. Positive-Edge Triggered: Data is loaded on the rising edge of the clock input.
3. Clear Function: It includes an asynchronous clear input that can reset all outputs to a low state, regardless of the clock.
4. TTL-Compatible: Designed for compatibility with TTL logic levels, making it suitable for interfacing with various digital systems.
5. Output Drive: The device provides totem-pole outputs capable of driving 10 standard TTL loads.
6. High-Speed Operation: Operates at high speeds suitable for typical digital logic applications.
7. Wide Operating Temperature Range: Reliable operation over a range of industrial temperatures.
8. Package Options: Available in various package types, including a 20-pin SOIC (DWR) surface-mount package.
These features make it suitable for applications requiring temporary data storage and synchronization in digital systems.

Pinout

The SN74LS273DWR is a part of the 74LS series of TTL logic devices. It is an octal D-type flip-flop with a pin count of 20 in the SOIC (Small Outline Integrated Circuit) package. The main function of this device is to store and transfer data on the positive edge of the clock pulse. It features eight flip-flops, each of which can store one bit of data, making it suitable for a variety of applications in digital electronics, such as registers and memory.
Key features include:
- 8-bit storage capacity.
- Positive edge-triggered operation.
- Direct clear capability to reset all outputs simultaneously.
- Standard TTL compatibility for easy integration with other TTL components.
The pin configuration typically includes pins for the clock input, clear input, data inputs (D0 to D7), and outputs (Q0 to Q7), along with power supply (Vcc) and ground (GND) pins. This configuration allows the SN74LS273DWR to be used in synchronous data storage and transfer applications.

Manufacturer

The SN74LS273DWR is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments designs, manufactures, tests, and sells analog and embedded processing chips. Their products are used in a variety of electronic systems and devices, ranging from industrial and automotive applications to personal electronics and communication systems. As a leading player in the semiconductor industry, Texas Instruments emphasizes innovation and efficiency in its manufacturing processes, serving a wide range of markets with advanced technology solutions.

Application

The SN74LS273DWR is an octal D-type flip-flop with clear, commonly used in digital electronics applications. Key application areas include data storage and transfer, where it helps in temporarily holding data, such as in buffer memory systems or registers. It's utilized in digital signal processing to manage data flow and synchronization. Additionally, it serves in microcontrollers and microprocessor systems for latching data signals and ensuring stable data output. These flip-flops are also integral in state machines and counters, where they maintain state and sequence information. Their use in these areas makes them essential in a wide range of electronic devices and systems.

Package

The SN74LS273DWR is an octal D-type flip-flop integrated circuit with a W-type SOIC (Small Outline Integrated Circuit) package, specifically in a 20-pin SOIC package. It is designed for surface mounting on PCBs and is used for data storage and transfer applications.

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