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Nexperia USA Inc. 74HC573D-Q100,118
- Part No.:
- 74HC573D-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74HC573D-Q100,118.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,490
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Product details
Overview
74HC573D-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified octal D-type transparent latch with 3-state outputs in SO20 (SOT163-1) package, operating from 2.0 V to 6.0 V supply, featuring latch enable (LE) and output enable (OE) inputs, and supporting automotive ambient temperatures up to +125 °C. It functions as a bidirectional bus interface latch for microprocessor I/O expansion, data buffering, and address/data latching in engine control units and ADAS domain controllers.
For engineers reviewing the 74HC573D-Q100 datasheet, 74HC573D-Q100 pinout, 74HC573D-Q100 application, or 74HC573D-Q100 equivalent, this device is selected for its CMOS-level input compatibility, 3-state bus-driving capability, guaranteed -40 °C to +125 °C operation, low ICC (≤160 μA at VCC = 6.0 V), and SO20 package suitability for high-reliability automotive PCB layouts.
Technical Context
This latch implements eight independent D-type flip-flop stages with synchronous transparent latching behavior controlled by LE: when LE is HIGH, Qn follows Dn in real time; when LE transitions LOW, the input state is captured and held. The separate OE input controls all eight outputs simultaneously into high-impedance mode without affecting internal latch states.
Input clamp diodes allow safe interfacing to voltages exceeding VCC via current-limiting resistors. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), supports HBM ESD >2000 V and CDM >1000 V, and meets latch-up immunity >100 mA per JESD78 Class II Level B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V automotive subsystems without level shifters. |
| Operating temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Propagation delay (D→Q) | 14 ns (typ) at VCC = 6.0 V, CL = 50 pF - supports ≤35 MHz bus timing in transparent mode. |
| Output drive strength | ±7.8 mA (VOH/VOL) at VCC = 4.5 V - sufficient to drive 50 pF loads across automotive harnesses. |
| Quiescent current | 160 μA max at VCC = 6.0 V, -40 °C to +125 °C - ensures low standby power in always-on vehicle modules. |
| Input logic type | CMOS-level compatible - VIH = 4.2 V (min) at VCC = 6.0 V; eliminates need for external pull-ups in 5 V systems. |
| Power dissipation capacitance | 26 pF - enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N) for thermal design. |
Pinout & Package
SO20 plastic small outline package (SOT163-1), 20-pin, 7.5 mm body width, gull-wing leads, RoHS-compliant, with side-wettable flanks not applicable (DHVQFN feature excluded).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | 3-state output enable input | Active LOW; disables all Q0–Q7 outputs to high-impedance without altering latch contents. |
| 2–9 (D0–D7) | Data inputs | Asynchronous parallel inputs; accept CMOS-level signals; include clamp diodes for overvoltage tolerance. |
| 10 (GND) | Ground reference | 0 V return path for all internal circuitry and output drivers; must be low-inductance connection. |
| 11 (LE) | Latch enable input | Active HIGH; enables transparent mode; falling edge captures Dn values into internal latches. |
| 12–19 (Q0–Q7) | 3-state latch outputs | Non-inverting buffered outputs; driven only when OE = LOW; high-Z when OE = HIGH. |
| 20 (VCC) | Positive supply | Primary power rail; decoupling capacitor (100 nF) required within 5 mm of pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C with full reliability testing (HTOL, TC, UHAST, etc.). |
| Separate LE and OE controls | Enables independent data capture timing (via LE) and bus arbitration timing (via OE), critical for multiprocessor memory-mapped I/O. |
| Clamp diode protected inputs | Permits direct connection to 12 V or CAN transceiver outputs using series current-limiting resistors, reducing external protection components. |
| Low dynamic power consumption | CPD = 26 pF allows <1 mW typical dynamic power at 10 MHz switching with 50 pF load - extends battery life in always-on modules. |
| SO20 package with standard footprint | SOT163-1 outline ensures drop-in compatibility with legacy 74-series latches and simplifies PCB rework and test fixture design. |
Applications
| Engine Control Unit (ECU) Address Latching | ADAS Camera Interface Buffering |
|---|---|
|
Use Scenario: Capturing 8-bit address segments from microcontroller during multiplexed address/data bus cycles in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Transparent latch synchronizing address strobes to microcontroller clock domain while isolating downstream memory peripherals. Use Value: Eliminates timing skew between address setup/hold and memory access windows, enabling reliable 25 MHz bus operation at +125 °C. |
Use Scenario: Isolating MIPI CSI-2 parallel data lanes between image sensor and SoC in surround-view camera modules. IC Role / Device Role / Timing Role: Bidirectional bus buffer providing signal integrity margin and hot-swap isolation between sensor and host processor. Use Value: Prevents signal reflections and ground bounce during sensor power-up/down sequences, maintaining pixel clock stability ±50 ps jitter. |
| Automotive Infotainment Display Driver | Body Control Module (BCM) I/O Expansion |
|
Use Scenario: Expanding GPIO count of infotainment MCU to drive segment LCD backlights and touch controller interrupts. IC Role / Device Role / Timing Role: Output port latch holding steady backlight enable states while MCU executes display refresh routines. Use Value: Removes software polling overhead and guarantees flicker-free backlight control during UI animation rendering. |
Use Scenario: Adding isolated digital inputs for door lock status, seatbelt sensors, and mirror position feedback in BCMs. IC Role / Device Role / Timing Role: Input port latch capturing mechanical switch transitions with debounced sampling synchronized to BCM main loop. Use Value: Reduces MCU interrupt load by 8× and provides deterministic input sampling aligned to 10 ms safety watchdog intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT573D-Q100 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V); identical SO20 package and timing. | Required when interfacing with legacy 5 V TTL logic or microcontrollers lacking CMOS-level output swing. | Select when driving from 5 V microcontrollers with marginal VOH (e.g., older 8051 derivatives). |
| SN74LV573AQPWRQ1 | TI's AEC-Q100 Grade 1 latch; wider VCC range (1.65–5.5 V); lower tpd (10 ns typ at 3.3 V); different pinout (Q0–Q7 on left, D0–D7 on right). | Preferred for 3.3 V-only systems requiring faster propagation and lower static current (<10 μA). | Choose for new 3.3 V designs prioritizing speed and ultra-low quiescent power; requires PCB layout revision. |
Compared with 74HCT573D-Q100, the 74HC573D-Q100 offers superior noise immunity in mixed-voltage domains but requires higher VIH; versus SN74LV573AQPWRQ1, it provides broader supply flexibility and pinout compatibility with legacy 74HC designs at the cost of slightly higher propagation delay.
Availability
74HC573D-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS camera interfaces, infotainment display drivers, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for 74HC573D-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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for automotive, industrial, and consumer applications.
The 74HC573D-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for robustness in harsh environments, with emphasis on AEC-Q100 compliance, extended temperature operation, and system-level ESD resilience.
FAQ
Can 74HC573D-Q100 operate reliably at 125 °C junction temperature?
Yes. The device is fully qualified per AEC-Q100 Grade 1 for operation from -40 °C to +125 °C ambient temperature. Thermal derating curves in the datasheet confirm sustained functionality at maximum rated junction temperature when PCB copper area and airflow meet recommended layout guidelines (e.g., ≥200 mm² thermal pad exposure).
What is the minimum pulse width required on LE for reliable latching?
The minimum LE HIGH pulse width is 14 ns at VCC = 6.0 V (20 ns at VCC = 4.5 V). This ensures sufficient setup time for internal metastability resolution. For robust operation across voltage and temperature extremes, a 30 ns minimum pulse is recommended in production designs.
Does OE affect internal latch state when asserted?
No. Asserting OE (driving it LOW) places Q0–Q7 outputs in high-impedance mode but has no effect on the stored logic states within the eight D-latches. Data remains retained and immediately reappears on the outputs when OE is deasserted (driven HIGH).
Is there a recommended decoupling strategy for SO20 layout?
Place a 100 nF X7R ceramic capacitor between VCC (pin 20) and GND (pin 10) with trace length <5 mm and via-in-pad grounding. Add a 4.7 μF tantalum or polymer capacitor near the power entry point of the IC cluster to suppress low-frequency ripple from shared automotive rails.
74HC573D-Q100,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 2V ~ 6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 14ns
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74HC573D-Q100,118 FAQ
1.How can I place an order for 74HC573D-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC573D-Q100,118 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 74HC573D-Q100,118 reliable?
The price and inventory of 74HC573D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC573D-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74HC573D-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC573D-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC573D-Q100,118?
74HC573D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC573D-Q100,118 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 74HC573D-Q100,118?
For technical support, including 74HC573D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC573D-Q100,118 requirements.
6.How does Aetrix verify that 74HC573D-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74HC573D-Q100,118 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 74HC573D-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74HC573D-Q100,118?
All 74HC573D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC573D-Q100,118, 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 74HC573D-Q100,118 part is unused and in its original packaging.
Return procedure for 74HC573D-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC573D-Q100,118 Tags
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SN74HC573APWR
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SN74HC573ADWR
Texas Instruments
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SN74AHC573PWR
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SN74HCT573DWR
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SN74HC373N
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SN74HC573AN
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74VHC573MTCX
onsemi
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MC74LCX573DTR2G
onsemi
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74AUP1G373GW,125
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SN74LVC1G373DBVR
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NC7SZ373P6X
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