SN74AHC273PWR

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SN74AHC273PWR

IC FF D-TYPE SNGL 8BIT 20TSSOP

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Spezifikationen

Supplier Texas Instruments,Rochester Electronics, LLC
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series 74AHC
ProductStatus Active
Function Master Reset
Type D-Type
OutputType Non-Inverted
NumberofElements 1
NumberofBitsperElement 8
ClockFrequency 110 MHz
MaxPropagationDelay@VMaxCL 11ns @ 5V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 8mA, 8mA
Voltage-Supply 2V ~ 5.5V
Current-Quiescent(Iq) 4 µA
InputCapacitance 2.5 pF
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
SupplierDevicePackage 20-TSSOP

Übersicht

Description

SN74AHC273PWR is an octal D-type latch with 3-state outputs from TI’s Advanced High-Speed CMOS (AHC) family. Key points:
- 8 data inputs D0–D7 and 8 outputs Q0–Q7.
- Latch enable (G): when asserted, Q follows D; when deasserted, Q holds the last value.
- Output enable (OE, active low): gates all outputs to high-impedance for bus sharing when high.
- Operates on 2.0–5.5 V (CMOS/TTL-compatible levels), suitable for 3.3 V and 5 V systems.
- Fast, low-power device; no asynchronous clear/preset.
- Common uses: buffering data between a microprocessor and peripherals, address/data latching, or temporary storage on a bus.
Packaging: PWR denotes a TI variant/packaging option. For exact pinout, timing diagrams, and ratings, consult the TI datasheet.

Features

SN74AHC273PWR is an 8-bit D-type transparent latch with 3-state outputs. Key features:
- 8 data inputs (D0–D7) and 8 outputs (Q0–Q7)
- Latch Enable (LE): when LE is HIGH, Q follows D; when LE is LOW, Q holds
- Output Enable (OE): active LOW; when OE is LOW, all outputs are enabled; when OE is HIGH, outputs are high-impedance
- Wide Vcc range: 2.0 V to 5.5 V (AHC family)
- CMOS technology: low static and dynamic power
- Fast CMOS performance (propagation delays in the few-ns range, depending on Vcc)
- Temperature range typically -40°C to 125°C
- Pb-free, RoHS-compliant; available in PWR package options
Uses: bus-sharing storage, register files, and any application needing an 8-bit latch with tri-state outputs.

Package

20-pin surface-mount package: TI’s PWR suffix denotes a TSSOP (Thin Shrink Small Outline Package), RoHS-compliant.

Pinout

- Pin count: 20 pins (DIP-20 / SOIC-20 typical packages).
- Function: SN74AHC273PWR is an octal D-type transparent latch with 3-state outputs. It has D0–D7 data inputs, a latch-enable input (LE) to pass/hold data, Q0–Q7 outputs, an output-enable input (G but effectively OE) to tri-state the outputs, plus Vcc and GND.

Manufacturer

Manufacturer: Texas Instruments (TI).
TI is a multinational American technology company that designs, manufactures, and sells semiconductors and integrated circuits, including analog, digital, microcontrollers, and sensors. It is one of the world's leading semiconductor manufacturers.

Application

SN74AHC273PWR is an 8-bit D-type register with 3-state outputs (edge-triggered). Applications: buffering/storing data between ICs; address/data demultiplexing on multiplexed buses; bus interfacing and tri-state bus isolation; pipeline/register stages in CPUs, DSPs, and microcontrollers; temporary data storage in state machines; data-path expansion and latent latch in peripheral/interface circuits.

Equivalent

Equivalent products: 8-bit D-type latch with 3-state outputs, pin-compatible with SN74AHC273:
- Nexperia 74AHC273
- STMicroelectronics 74AHC273
- ON Semiconductor MC74AHC273 (or 74AHC273)
- Renesas uPD74AHC273
(All are functionally equivalent in the AHC273 family.)

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