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74HC273D

Name: 74HC273D
Rating: 4.7 (12 reviews)

IC FF D-TYPE SNGL 8BIT 20SOIC

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Mfr。パート #74HC273D
パッケージ SOP20
データシート 74HC273D DataSheet
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仕様

Package	Tape & Reel (TR),Cut Tape (CT)
Series	74HC
ProductStatus	Active
Function	Master Reset
Type	D-Type
OutputType	Non-Inverted
NumberofElements	1
NumberofBitsperElement	8
ClockFrequency	66 MHz
MaxPropagationDelay@VMaxCL	25ns @ 6V, 50pF
TriggerType	Positive Edge
Current-OutputHighLow	5.2mA, 5.2mA
Voltage-Supply	2V ~ 6V
Current-Quiescent(Iq)	4 µA
InputCapacitance	3 pF
OperatingTemperature	-40°C ~ 125°C (TA)
MountingType	Surface Mount
SupplierDevicePackage	20-SOIC

概要

Description

The 74HC273D is an 8-bit D-type flip-flop integrated circuit (IC) designed for high-speed digital applications. It features eight individual D flip-flops, each with a data (D) input, a clock (CLK) input, and an active-low asynchronous reset (CLR) input. When the CLK input transitions from low to high, the data present at the D inputs is captured and stored in the flip-flops, making it available at the Q outputs.
The IC operates at high speed and is compatible with standard TTL levels, making it suitable for various digital logic applications, such as data storage, registers, and state machines. It operates within a wide voltage range (typically 2V to 6V) and has low power consumption, contributing to its popularity in consumer electronics and digital systems. The 'D' in its designation indicates that it is a D-type flip-flop, and the 'HC' signifies that it belongs to the high-speed CMOS logic family, ensuring fast switching times and high noise immunity.

Features

The 74HC273D is an 8-bit D-type flip-flop with a tri-state output, designed for high-speed applications. Key features include:
1. Data Storage: It can store 8 bits of data, making it suitable for temporary data storage in digital systems.

2. Edge-Triggered: The flip-flops are triggered on the rising edge of the clock input, ensuring reliable data capture.
3. Asynchronous Inputs: It includes asynchronous preset and clear inputs, allowing for immediate setting or resetting of the output states without clocking.
4. Tri-State Outputs: The outputs can be put in a high-impedance state, enabling multiple devices to share the same output line.
5. Wide Operating Voltage: Operates from 2V to 6V, compatible with various logic levels.
6. High Speed: Features fast propagation delay, suitable for high-speed applications.
7. Low Power Consumption: Designed for low power usage, enhancing efficiency in battery-operated devices.
These features make the 74HC273D ideal for use in data processing, control applications, and interfacing.

Package

The 74HC273D is typically available in a 20-pin dual in-line package (DIP) or a surface mount package. Common package types include the SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package). The specific package type can vary based on manufacturer and application requirements.

Pinout

The 74HC273D is an octal D flip-flop with a 3-state output. It has 20 pins, which perform the following functions:
1. Pins 1-8 (D0-D7): Data inputs for each of the eight D flip-flops.
2. Pin 9 (GND): Ground connection.
3. Pin 10 (CLK): Clock input; data is latched on the rising edge.
4. Pin 11 (CLR): Asynchronous clear; active low to reset all flip-flops.
5. Pin 12 (PRE): Asynchronous preset; active low to set all flip-flops.
6. Pin 13 (EN): Output enable; active low to enable the outputs.
7. Pins 14-20 (Q0-Q7): Outputs for each of the eight D flip-flops.
This device is commonly used in digital applications for data storage and transferring.

Manufacturer

The 74HC273D is a product manufactured by Texas Instruments. Texas Instruments (TI) is a multinational technology company based in Dallas, Texas, known for designing and manufacturing semiconductors and various integrated circuits. The company specializes in analog electronics, embedded processors, and digital signal processing. Founded in 1930, TI serves a wide range of industries, including telecommunications, automotive, consumer electronics, and industrial applications. The 74HC273D is a high-speed CMOS D-type flip-flop, commonly used in digital circuits for data storage and transfer. TI is recognized for its innovation and extensive product portfolio, making it a key player in the semiconductor industry.

Application

The 74HC273D is a high-speed CMOS octal D-type flip-flop, commonly used in digital circuits for data storage and transfer. Its application areas include data buffering, temporary data storage in registers, state machine design, and synchronous data processing in communication systems. It is often employed in microcontroller interfacing, memory address decoding, and as a building block in complex digital systems like counters and shift registers.

Equivalent

The 74HC273D is an octal D-type flip-flop with a tri-state output. Equivalent products include the 74HCT273, 74LS273, 74F273, and 74AC273. For specific applications, you might also consider similar devices from different manufacturers, like the MC74HC273A or the CD74HC273. Always check the datasheets for voltage levels, power consumption, and other specifications to ensure compatibility.