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Nexperia USA Inc. 74LVC573AD-Q100J
- Part No.:
- 74LVC573AD-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74LVC573AD-Q100J.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,036
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Product details
Overview
74LVC573AD-Q100 from Nexperia is an automotive-grade octal D-type transparent latch with 3-state outputs, 5 V tolerant I/O, and operation across 1.2 V to 3.6 V supply. It features common Latch Enable (LE) and Output Enable (OE) controls, supports mixed-voltage bus interfacing (3.3 V core / 5 V peripherals), and is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C). Used in automotive body control modules for data latching between microcontrollers and external sensors or displays.
For engineers reviewing the 74LVC573AD-Q100 datasheet, 74LVC573AD-Q100 pinout, 74LVC573AD-Q100 application, or 74LVC573AD-Q100 equivalent, this device serves as a voltage-tolerant, low-power bus interface latch requiring precise timing validation for LE/OE setup/hold, propagation delay matching, and high-impedance output behavior under hot-swap conditions.
Technical Context
The 74LVC573AD-Q100 implements eight independent D-type latches with transparent mode when LE is HIGH and edge-triggered capture on LE HIGH-to-LOW transition. Its dual-control architecture separates data latching (LE) from bus release (OE), enabling asynchronous output gating without affecting stored state.
All inputs tolerate up to 5.5 V regardless of VCC (1.2 V–3.6 V), and outputs drive 5 V logic while sinking/sourcing ±24 mA at VCC = 3.0 V. The device maintains high-impedance outputs even when VCC = 0 V, supporting live-insertion and power sequencing in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct integration into 1.8 V or 3.3 V automotive MCU domains without level shifters. |
| I/O Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V legacy peripherals (e.g., LIN transceivers, display drivers) without external clamping. |
| Propagation Delay (Dn→Qn) | 1.5 ns to 6.2 ns (VCC = 3.0–3.6 V) - Supports high-speed data capture in CAN gateway buffer applications with sub-10 ns timing margins. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive 50 Ω transmission lines or multiple TTL loads in distributed sensor networks. |
| Operating Temperature | −40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood engine control units and ADAS domain controllers. |
| Power Dissipation | 500 mW max (SO20 package) - Enables use in thermally constrained PCB layouts with minimal heatsinking. |
| Input Capacitance | 5.0 pF - Minimizes signal loading on high-frequency address/data buses in infotainment SoC interfaces. |
Pinout & Package
74LVC573AD-Q100 is supplied in SO20 (SOT163-1) package: plastic small outline, 20 leads, 7.5 mm body width, standard gull-wing lead form compatible with automated optical inspection and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable (active LOW) | Asserts 3-state outputs independently of latch state; enables shared-bus arbitration without disturbing stored data. |
| 2–9 (D0–D7) | Data Inputs | Asynchronous inputs accepting 5 V logic; sampled only when LE is HIGH (transparent mode) or captured on LE↓ edge. |
| 10 (GND) | Ground Reference | Primary return path for all I/O and supply currents; requires low-inductance PCB connection to minimize ground bounce. |
| 11 (LE) | Latch Enable (active HIGH) | Controls transparency vs. storage: HIGH = follow Dn; LOW = hold last sampled value; edge-sensitive capture timing critical for setup/hold compliance. |
| 12–19 (Q0–Q7) | 3-State Outputs | True-level outputs with 5 V tolerance; enter high-Z when OE = HIGH, retain latched value when OE = LOW. |
| 20 (VCC) | Supply Voltage | Core logic supply (1.2–3.6 V); powers internal CMOS circuitry and output drivers; decoupling capacitor required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O at 1.2 V–3.6 V VCC | Eliminates external level translators in mixed-voltage automotive subsystems (e.g., 3.3 V MCU ↔ 5 V instrument cluster). |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from −40 °C to +125 °C, meeting reliability requirements for powertrain and chassis control units. |
| Flow-through pinout (SO20) | Input pins (D0–D7) on left side, outputs (Q0–Q7) on right side - simplifies PCB routing and reduces crosstalk in high-density ECU layouts. |
| High-impedance when VCC = 0 V | Permits hot-plug capability and safe power sequencing in modular vehicle architectures where subsystems power up/down asynchronously. |
| JEDEC-compliant voltage standards | Meets JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) - ensures interoperability with industry-standard logic families. |
Applications
| Automotive Body Control Module | Instrument Cluster Interface |
|---|---|
|
Use Scenario: Latching sensor status (door open/closed, seatbelt fastened) before transmission over LIN or CAN bus. IC Role / Device Role / Timing Role: Octal latch buffers parallel GPIO reads from microcontroller, synchronizing asynchronous mechanical switch inputs to deterministic bus transmission windows. Use Value: Prevents metastability and race conditions during multi-bit status capture; 5 V tolerance accommodates legacy 5 V switch matrices without added components. |
Use Scenario: Isolating MCU data bus from analog display driver ICs operating at 5 V. IC Role / Device Role / Timing Role: Bidirectional bus interface that holds pixel data stable during display refresh cycles while allowing MCU to access other peripherals. Use Value: Enables clean bus sharing between 3.3 V MCU and 5 V display controller; 3-state outputs prevent contention during MCU memory accesses. |
| Engine Control Unit (ECU) Diagnostics Port | ADAS Camera Sensor Hub |
|
Use Scenario: Buffering diagnostic register values for readback via external test equipment using 5 V signaling. IC Role / Device Role / Timing Role: Transparent latch captures real-time ECU status bits (fault codes, sensor health flags) for external 5 V logic analyzers or debuggers. Use Value: Eliminates need for discrete level-shifting ICs; 5.5 V input tolerance protects against voltage overshoot during probe contact. |
Use Scenario: Interfacing MIPI CSI-2 bridge IC (1.8 V I/O) with 5 V camera module power management and sync signals. IC Role / Device Role / Timing Role: Level-translating latch for non-MIPI control lines (reset, power enable, frame sync) between low-voltage processor and high-voltage imaging subsystem. Use Value: Provides robust voltage translation without timing skew across 8 control signals; flow-through pinout minimizes trace length mismatch in high-speed sync paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC573AQPWRQ1 | TSSOP20 package (SOT360-1); 0.65 mm pitch; lower thermal resistance than SO20 but no side-wettable flanks. | Better suited for space-constrained PCBs; AOI requires specialized side-view optics due to lack of wettable flanks. | Select when board area is limited and automated optical inspection uses side-view capability. |
| 74LVC573ABQ-Q100 | DHVQFN20 package (SOT764-1); 2.5 × 4.5 mm footprint; side-wettable flanks for reliable AOI; no leads. | Superior thermal performance and higher I/O density; requires stencil design for QFN reflow; not socket-compatible with SO20. | Select for thermally demanding under-hood applications where SO20 thermal derating limits power budget. |
Compared with SN74LVC573AQPWRQ1 and 74LVC573ABQ-Q100, the 74LVC573AD-Q100 offers proven manufacturability in SO20 with full AOI support via side-wettable flanks, making it optimal for high-volume automotive production where process stability and first-pass yield are prioritized over minimal footprint.
Availability
74LVC573AD-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, and ECU diagnostic ports requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 74LVC573AD-Q100 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 optimized for automotive, industrial, and mobile applications.
The 74LVC573AD-Q100 belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust, low-power, mixed-voltage interfacing in safety-critical vehicle systems requiring AEC-Q100 compliance and long-term supply assurance.
FAQ
What is the maximum input voltage the 74LVC573AD-Q100 can tolerate when VCC = 1.2 V?
The device tolerates up to 5.5 V on any input pin regardless of VCC level, including at minimum 1.2 V supply. This is confirmed in Table 4 (Limiting Values) and Table 5 (Recommended Operating Conditions) of the datasheet, where VI(max) = +6.5 V absolute maximum and functional VI(max) = +5.5 V. This allows direct connection to 5 V sources without damage or clamping diode conduction.
Does the 74LVC573AD-Q100 support hot insertion when VCC = 0 V?
Yes - the device exhibits high-impedance outputs and ≤ ±10 μA power-off leakage current (IOFF) when VCC = 0 V, as specified in Table 6. Inputs remain 5 V tolerant, and outputs float safely, enabling hot-plug operation in modular automotive subsystems where boards may be inserted while backplane power is active.
How does the LE timing requirement differ between transparent and latched modes?
In transparent mode (LE = HIGH), Dn changes propagate to Qn with tpd ≤ 6.2 ns (VCC = 3.0–3.6 V). In latched mode, data is captured on the HIGH-to-LOW LE transition; setup time tsu = 1.7 ns and hold time th = 1.4 ns (VCC = 3.0–3.6 V) must be met relative to that edge, per Table 7 and Fig. 11. These are distinct timing constraints for two different operational phases.
Is the SO20 package (SOT163-1) of the 74LVC573AD-Q100 compatible with standard wave soldering processes?
Yes - the SO20 package is explicitly qualified for both reflow and wave soldering. Its gull-wing leads and JEDEC-standard dimensions (Fig. 13) ensure compatibility with industry-standard wave solder profiles. The datasheet confirms suitability for automated assembly, and the "Side-Wettable Flanks" feature further enhances solder joint inspection reliability in automotive manufacturing.
74LVC573AD-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 1.2V ~ 3.6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 1.5ns
- Current - Output High, Low:
- 24mA, 24mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74LVC573AD-Q100J FAQ
1.How can I place an order for 74LVC573AD-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC573AD-Q100J 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 74LVC573AD-Q100J reliable?
The price and inventory of 74LVC573AD-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC573AD-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVC573AD-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC573AD-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC573AD-Q100J?
74LVC573AD-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC573AD-Q100J 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 74LVC573AD-Q100J?
For technical support, including 74LVC573AD-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC573AD-Q100J requirements.
6.How does Aetrix verify that 74LVC573AD-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVC573AD-Q100J 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 74LVC573AD-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVC573AD-Q100J?
All 74LVC573AD-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC573AD-Q100J, 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 74LVC573AD-Q100J part is unused and in its original packaging.
Return procedure for 74LVC573AD-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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