SN74HC374PWR

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SN74HC374PWR

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IC FF D-TYPE SNGL 8BIT 20TSSOP

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  • 製造商部分 #SN74HC374PWR

  • 有存貨5982

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規格

屬性 價值
Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
Series 74HC
ProductStatus Active
Function Standard
Type D-Type
OutputType Tri-State, Non-Inverted
NumberofElements 1
NumberofBitsperElement 8
ClockFrequency 70 MHz
MaxPropagationDelay@VMaxCL 31ns @ 6V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 7.8mA, 7.8mA
Voltage-Supply 2V ~ 6V
Current-Quiescent(Iq) 8 µA
InputCapacitance 3 pF
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
SupplierDevicePackage 20-TSSOP

概述

Description

SN74HC374PWR is an 8-bit, edge-triggered D-type register with tri-state outputs from the TI 74HC family.
Key points:
- 8 D inputs (D0–D7) and an on-chip clock (CLK). Data on D0–D7 are captured on the rising edge of CLK.
- Q0–Q7 provide the stored data; outputs are tri-stated when Output Enable (OE) is deasserted (OE is typically active-low).
- No asynchronous clear or preset; operation is purely clocked storage.
- Power: CMOS HC family. Typical supply range is 2 to 6 V (commonly 5 V).
- Features fast operation and low power; TTL-like input compatibility.
- Package variant “PWR” denotes a specific TI power/packaging option (e.g., a RoHS-compliant DIP/SOIC variant).
Common uses:
- Storing and buffering 8-bit data between buses or a processor and peripheral logic.
- Building small register banks or shift/register structures.
In short: an 8-bit, clocked storage register with 3-state outputs suitable for data buffering and bus interfacing in 5 V digital designs.

Equivalent

Equivalent parts for SN74HC374PWR (8-bit D-type latch with 3-state outputs):
- 74HC374 family (same function) from TI and other vendors
- 74HCT374 (TTL-compatible input thresholds)
- Other CMOS variants: 74AHC374, 74AVC374, 74LVC374
- Vendors with direct equivalents: Nexperia 74HC374, ON Semiconductor 74HC374, Renesas 74HC374
Ensure matching voltage range and package compatibility for your design.

Features

Here are the key features of SN74HC374PWR:
- 8-bit D-type register (D0–D7)
- Edge-triggered, clocked on the rising edge (CLK)
- 8 outputs (Q0–Q7) with 3-state capability
- Output Enable (OE) input, active-low; outputs go high-impedance when OE is high
- Synchronous data storage; data captured on clock edge
- Fully static operation (no dynamic timing required to hold data)
- Wide supply range (CMOS-compatible): typically 2V–6V
- Suitable for bus interfacing, storage/register applications, and data buffering
Optional note: Packaging variants (like PWR) pertain to specific package/lead-free options but do not change the core features listed above.

Pinout

- Pin count: 20 pins (DIP-20 / SOIC-20 variants)
- Function: Octal D-type edge-triggered register with 3-state outputs. Captures 8-bit data on the rising edge of the clock (CLK) from D1–D8 to Q1–Q8. Includes an active-low Output Enable (/OE) to tri-state the outputs when deasserted. Also has Vcc and GND pins.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and integrated circuits (a leading producer of analog, mixed-signal, and digital ICs).

Application

SN74HC374PWR is an octal D-type register/ latch with 3-state outputs. Key application areas:
- Demultiplexing address/data buses in microprocessors/microcontrollers (e.g., latching address lines).
- 8-bit data buffering and temporary storage in digital systems.
- Pipeline/register stages and timing alignment in synchronous designs.
- Glue logic and bus isolation for shared buses (tri-state outputs enable bus sharing).
- Interface to peripherals/display drivers (LEDs, LCDs, printers) requiring latched data.
- Memory-mapped I/O and simple buffering for RAM/ROM chips.
Also useful as general-purpose 8-bit latch/register in ASIC/FPGA glue logic.

Package

20-pin Plastic Small-Outline (SOIC) package (RoHS-compliant).