SN74HCT273DWR

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SN74HCT273DWR

IC FF D-TYPE SNGL 8BIT 20SOIC

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規格

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
Series 74HCT
ProductStatus Active
Function Master Reset
Type D-Type
OutputType Non-Inverted
NumberofElements 1
NumberofBitsperElement 8
ClockFrequency 37 MHz
MaxPropagationDelay@VMaxCL 29ns @ 5.5V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 4mA, 4mA
Voltage-Supply 4.5V ~ 5.5V
Current-Quiescent(Iq) 8 µA
InputCapacitance 3 pF
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
SupplierDevicePackage 20-SOIC

概述

Description

SN74HCT273DWR is an 8-bit D-type register with 3-state outputs from TI’s HCT family. It stores 8 bits of data on the rising edge of the clock (CP) and presents the stored value on Q0–Q7.
Key points:
- D0–D7 inputs; CP clock input; Q0–Q7 outputs.
- 3-state outputs controlled by the output-enable input (G); when enabled/disabled per the datasheet, the outputs go high-impedance for bus sharing.
- Operates from a single +5 V supply (4.5–5.5 V) with TTL-compatible input thresholds (HCT).
- Useful as a data buffer, simple storage element, or bus interface in microprocessor or digital systems.
Package: DWR indicates the packaging variant (check datasheet for pinout and mechanical details).
For exact timing, setup/hold, and electrical characteristics, refer to the SN74HCT273DWR datasheet.

Features

Concise features of SN74HCT273DWR:
- 8-bit D-type register with 3-state outputs (Q0–Q7)
- Edge-triggered storage (clocked on rising edge)
- D0–D7 data inputs
- Output Enable (G) to tri-state the outputs
- TTL-compatible input thresholds; 4.5–5.5 V supply
- High-speed CMOS (HCT) technology with low power
- Typical package: DWR (tape-and-reel) option for standard TI packaging
Note: Handles standard 8-bit parallel data storage with easy bus sharing via the 3-state outputs.

Package

20-pin Small Outline Integrated Circuit (SOIC) package, TI code DWR (wide SOIC, tape-and-reel available).

Pinout

- Pin count: 20-pin DIP (DWR package)
- Function: 8-bit edge-triggered storage register with 3-state outputs. D0–D7 are inputs; CP is the clock (latches data on rising edge); Q0–Q7 are the outputs; G is the (active-low) Output Enable that tri-states the outputs when asserted. VCC and GND provided.

Manufacturer

- Manufacturer: Texas Instruments (TI)
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and digital ICs and other electronics for a wide range of industries. It is one of the world’s largest semiconductor makers.

Application

SN74HCT273DWR is an 8-bit D-type register with 3-state outputs. Applications:
- Data/bus buffering and temporary storage in microprocessor/microcontroller systems
- Latching/staging for multiplexed address/data buses
- Tri-state bus interfacing to share buses among devices
- Pipeline/register stage for synchronous digital designs
- I/O data buffering and timing isolation for peripherals

Equivalent

Equivalents (pin-compatible octal D-type latch with 3-state outputs):
- 74HCT273 family from other vendors (e.g., Nexperia, Onsemi, Renesas)
- 74HC273 family
- 74LS273 family
Notes: These are functionally the same device in HC/ HCT/ LS CMOS/TLL families; check exact timing, input thresholds, and packaging for your design.

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