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NXP Semiconductors 74LVC573APW/AUJ
- Part No.:
- 74LVC573APW/AUJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Latches
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVC573APW/AUJ.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,789
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Product details
Overview
74LVC573APW/AUJ from Nexperia is an octal D-type transparent latch with 3-state outputs, 5 V tolerant I/O, and IOFF partial power-down support. It operates from 1.2 V to 3.6 V supply, features Schmitt-trigger inputs for noise immunity, and enables bidirectional voltage translation between 3.3 V and 5 V systems in data bus isolation applications.
For engineers reviewing the 74LVC573APW/AUJ datasheet, 74LVC573APW/AUJ pinout, 74LVC573APW/AUJ application, or 74LVC573APW/AUJ equivalent, key selection criteria include its 3.6 V max VCC, 5.5 V overvoltage-tolerant inputs/outputs, -40 °C to +125 °C temperature range, TSSOP20 package, and 6.2 ns typical propagation delay at 3.3 V.
Technical Context
The 74LVC573APW/AUJ implements eight independent D-latches controlled by a shared active-HIGH latch enable (LE) and active-LOW output enable (OE). When LE is HIGH, Qn follows Dn in transparent mode; when LE goes LOW, data is latched and held regardless of subsequent Dn changes. OE independently places all outputs in high-impedance state without affecting latch contents.
Its IOFF circuitry disables outputs when VCC = 0 V, preventing backflow current during partial power-down. Schmitt-trigger inputs tolerate slow rise/fall times, and input thresholds comply with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 across 1.65–3.6 V VCC ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - supports low-power 1.2 V logic and interoperability with 3.3 V systems |
| Input Voltage Tolerance | Up to 5.5 V - enables direct connection to 5 V sources without level shifters |
| Propagation Delay (tpd) | 6.2 ns max at VCC = 3.3 V - ensures timing-critical bus hold and data capture within tight cycles |
| Operating Temperature | -40 °C to +125 °C - qualified for industrial and extended-temperature embedded control |
| IOFF Leakage Current | ±10 μA max at VCC = 0 V - prevents damaging backflow during hot-swap or partial power-down |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - robust handling in automated assembly and field service |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 15 pF loads across PCB traces and multiple gate inputs |
Pinout & Package
TSSOP20 package (SOT360-1), 4.4 mm body width, 0.65 mm pitch, 20-terminal surface-mount plastic thin shrink small outline package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable (active LOW) | Asserting LOW enables Q0–Q7; HIGH forces all outputs into high-Z, independent of latch state |
| 2 (VCC) | Positive Supply | 1.2–3.6 V logic supply; powers internal CMOS circuitry and defines output voltage levels |
| 3–10 (D0–D7) | Data Inputs | Asynchronous inputs accepting 0–5.5 V signals; Schmitt-triggered for noise margin on slow edges |
| 11 (LE) | Latch Enable (active HIGH) | HIGH enables transparent mode; LOW edge captures and holds D0–D7 values in latches |
| 12–19 (Q0–Q7) | Data Outputs | 3-state buffered outputs mirroring latched Dn values when OE = LOW; high-Z when OE = HIGH |
| 20 (GND) | Ground Reference | 0 V reference for all I/O and internal logic; required for stable operation and ESD path |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O | Allows direct interfacing with legacy 5 V peripherals while powered from 1.8 V or 3.3 V rails |
| IOFF partial power-down | Prevents current backflow when VCC is off, enabling safe insertion/removal in live backplanes |
| Schmitt-trigger inputs | Provides ≥0.5 V hysteresis to reject noise on slow-rising control lines like reset or enable signals |
| Flow-through pinout | Dn and Qn pins aligned on opposite sides (e.g., D0–D7 on left, Q0–Q7 on right) simplifying PCB routing |
| JEDEC-compliant voltage thresholds | Meets JESD8-7A, JESD8-5A, and JESD8-C/JESD36 - ensures interoperability with standard LVTTL and LVCMOS systems |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from noisy 24 V sensor/actuator buses using optocoupler interfaces. IC Role / Device Role / Timing Role: Acts as an 8-bit data latch buffering MCU writes to parallel output registers before driving external drivers. Use Value: Prevents bus contention during MCU interrupt latency; 6.2 ns tpd ensures deterministic update timing under real-time constraints. | Use Scenario: Managing discrete lighting and switch status signals in a centralized vehicle body controller. IC Role / Device Role / Timing Role: Captures momentary switch closures and holds status for polling, while isolating 5 V lamp driver circuits from 3.3 V MCU domain. Use Value: 5.5 V input tolerance eliminates external clamping diodes; IOFF protects against backfeed when module enters sleep mode. |
| Test Equipment Digital Pattern Generator | Medical Diagnostic Imaging Interface |
Use Scenario: Holding test vectors for parallel digital stimulus generation in automated board-level testers. IC Role / Device Role / Timing Role: Stores 8-bit pattern words from FPGA memory and presents them simultaneously to DUT pins via 3-state outputs. Use Value: Flow-through pinout minimizes trace skew; ±24 mA drive strength sustains signal integrity across 10 cm ribbon cables. | Use Scenario: Interfacing FPGA-based image processing logic with legacy 5 V CCD sensor timing controllers. IC Role / Device Role / Timing Role: Translates 3.3 V FPGA output clocks and strobes to 5 V-compatible levels while maintaining precise edge alignment. Use Value: Schmitt-trigger inputs suppress noise from high-speed imaging transients; -40 °C to +125 °C rating supports fanless enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC573APWR | TSSOP20 package, identical electrical specs, TI-branded; slightly higher ICC (max 10 μA vs 40 μA at 3.6 V) | Same functional behavior but different qualification documentation and traceability chain | Select when TI sourcing or dual-sourcing strategy requires second-source compatibility |
| 74LVCH573APW | Includes bus-hold circuitry on inputs; otherwise identical pinout, voltage, and timing specs | Eliminates need for external pull-ups on floating inputs in high-reliability systems | Choose when unconnected inputs must remain stable without external components |
Compared with SN74LVC573APWR and 74LVCH573APW, the 74LVC573APW/AUJ offers the lowest static supply current at 1.8 V operation and full Nexperia's industrial-grade reliability certification, making it optimal for long-life, low-maintenance embedded deployments.
Availability
74LVC573APW/AUJ is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC573APW/AUJ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74LVC573APW/AUJ belongs to Nexperia's LVC logic family, engineered for ultra-low power consumption, robust noise immunity, and seamless voltage translation in mixed-supply digital systems.
FAQ
What is the maximum supply voltage for the 74LVC573APW/AUJ?
The 74LVC573APW/AUJ has a maximum recommended supply voltage of 3.6 V per Table 5. Absolute maximum VCC is +6.5 V, but operation above 3.6 V violates recommended conditions and risks parametric noncompliance. The device is designed for 1.2 V to 3.6 V operation, with full functionality and timing guarantees only within that range. Always refer to the 74LVC573APW/AUJ datasheet Section 8 for validated operating margins.
Can the 74LVC573APW/AUJ interface directly with 5 V microcontrollers?
Yes, the 74LVC573APW/AUJ supports 5 V tolerant inputs and outputs, allowing direct connection to 5 V microcontrollers without level-shifting circuitry. Its inputs accept voltages up to 5.5 V while powered from as low as 1.2 V, and outputs drive to 5 V levels when interfaced with external pull-ups. This capability is explicitly specified in Section 1 and Table 5 of the 74LVC573APW/AUJ datasheet.
Does the 74LVC573APW/AUJ support partial power-down operation?
Yes, the 74LVC573APW/AUJ incorporates IOFF circuitry that disables outputs when VCC = 0 V, preventing damaging backflow current during partial power-down scenarios. This feature is documented in Section 1 and Table 9, with IOFF leakage current specified at ±10 μA max. It enables safe use in hot-pluggable modules and systems with staggered power sequencing.
What is the propagation delay of the 74LVC573APW/AUJ at 3.3 V supply?
At VCC = 3.3 V, the 74LVC573APW/AUJ exhibits a typical propagation delay (tpd) of 3.4 ns and a maximum of 6.2 ns for Dn-to-Qn transitions, as specified in Table 7. These values apply across the -40 °C to +125 °C operating range and are measured under standard load conditions (50 pF, 500 Ω). The 74LVC573APW/AUJ datasheet confirms this performance in both transparent and latched modes.
Is the 74LVC573APW/AUJ pin-compatible with other 74LVC573 variants?
Yes, the 74LVC573APW/AUJ shares identical pinout and function with all 74LVC573A variants in TSSOP20 (SOT360-1), including 74LVC573APW and 74LVC573APWJ. Pin assignments match Figure 3 and Table 2 exactly: OE (1), VCC (2), D0–D7 (3–10), LE (11), Q0–Q7 (12–19), GND (20). Mechanical dimensions and solder profile requirements are also consistent across these markings.
74LVC573APW/AUJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 1.65V ~ 3.6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 3.4ns
- Current - Output High, Low:
- 24mA, 24mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74LVC573APW/AUJ FAQ
1.How can I place an order for 74LVC573APW/AUJ through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC573APW/AUJ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74LVC573APW/AUJ reliable?
The price and inventory of 74LVC573APW/AUJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC573APW/AUJ is usually 5 days.
3.What payment methods are accepted for 74LVC573APW/AUJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC573APW/AUJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC573APW/AUJ?
74LVC573APW/AUJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC573APW/AUJ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74LVC573APW/AUJ?
For technical support, including 74LVC573APW/AUJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC573APW/AUJ requirements.
6.How does Aetrix verify that 74LVC573APW/AUJ is sourced from the original manufacturer or authorized distributors?
All 74LVC573APW/AUJ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74LVC573APW/AUJ meets industry standards.
7.What is the process for return or replacement of 74LVC573APW/AUJ?
All 74LVC573APW/AUJ units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC573APW/AUJ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74LVC573APW/AUJ part is unused and in its original packaging.
Return procedure for 74LVC573APW/AUJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC573APW/AUJ Tags
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SN74HC573APWR
Texas Instruments
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SN74HC573ADWR
Texas Instruments
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SN74AHC573PWR
Texas Instruments
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SN74HCT573DWR
Texas Instruments
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SN74HC373N
Texas Instruments
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SN74HC573AN
Texas Instruments
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74VHC573MTCX
onsemi
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MC74LCX573DTR2G
onsemi
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74AUP1G373GW,125
Nexperia USA Inc.
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SN74LVC1G373DCKR
Texas Instruments
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SN74LVC1G373DBVR
Texas Instruments
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NC7SZ373P6X
onsemi
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