SN74AHC573PWR

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SN74AHC573PWR

IC OCT TRNSP D-TYP LATCH 20TSSOP

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Especificaciones

Supplier Texas Instruments,Rochester Electronics, LLC
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series 74AHC
ProductStatus Active
LogicType D-Type Transparent Latch
Circuit 8:8
OutputType Tri-State
Voltage-Supply 2V ~ 5.5V
IndependentCircuits 1
DelayTime-Propagation 1ns
Current-OutputHighLow 8mA, 8mA
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 20-TSSOP (0.173, 4.40mm Width)

Descripción general

Description

SN74AHC573PWR is an 8-bit D-type transparent latch with 3-state outputs from TI’s AHC family.
- Function: D0–D7 inputs and Q0–Q7 outputs; LE (Latch Enable) makes Q follow D while high; when LE goes low, the latched value is held.
- Output control: OE (Output Enable) tri-states the 8 outputs when inactive, enabling bus sharing.
- Voltage and speed: CMOS device typical operation from 2.0 to 5.5 V; fast CMOS performance with a few-nanosecond-scale propagation depending on Vcc.
- Package: PWR suffix indicates a RoHS-compliant package (often with an exposed pad/thermal feature) suitable for surface mounting.
- Use cases: 8-bit data buffering/latching, address/data demultiplexing, bus isolation, and microprocessor/microcontroller peripheral interfaces.
- Notes: Check the exact pinout and timing specs in the TI datasheet for LE, OE, input thresholds, and recommended operating conditions.
If you need, I can summarize the pinout for a specific package version (e.g., TSSOP or DIP).

Package

The SN74AHC573PWR is supplied in a 20-pin TSSOP (Thin Shrink Small Outline Package, TI code PW) and the "R" denotes tape-and-reel packaging for automated assembly.

Pinout

SN74AHC573PWR is a 20-pin device (PWR = 20-pin TSSOP). Function: it is an octal D-type transparent latch with 3-state outputs. It provides eight D inputs (D0–D7), eight non‑inverting outputs (Q0–Q7), a latch enable (LE, active HIGH) that makes the latches transparent when HIGH and latches data when LOW, an output enable (OE, active LOW) that drives outputs to high‑impedance when HIGH, plus VCC and GND.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures analog, embedded processing, and logic ICs, headquartered in Dallas, Texas.

Application

SN74AHC573PWR is an 8-bit D-type transparent latch with tri-state outputs. Applications:
- Latch and buffer data on parallel buses
- Demultiplex multiplexed address/data buses (e.g., 8086/8088)
- 8-bit temporary storage/register in timing-critical paths
- Bus driver/expander due to 3-state outputs
- General-purpose 8-bit latch in high-speed CMOS digital designs

Equivalent

Direct equivalents:
- 74AHC573 (same function) from Nexperia, STMicro, Microchip, On Semiconductor (e.g. 74AHC573PW / 74AHC573PWR).
Functionally similar replacements (check Vih/Vil and package):
- 74HC573 (SN74HC573)
- 74HCT573 (SN74HCT573)
Confirm package, voltage range (2–6 V vs TTL levels) and timing before substituting.

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