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Nexperia USA Inc. 74HC373PW-Q100,118
- Part No.:
- 74HC373PW-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC373PW-Q100,118.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,595
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Product details
Overview
74HC373PW-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified octal D-type transparent latch with 3-state outputs, designed for automotive bus interfacing. It operates from 2.0 V to 6.0 V, features independent latch enable (LE) and output enable (OE) controls, and delivers propagation delay as low as 12 ns at VCC = 6.0 V - enabling reliable data latching in engine control units and ADAS domain controllers.
For engineers reviewing the 74HC373PW-Q100 datasheet, 74HC373PW-Q100 pinout, 74HC373PW-Q100 application, or 74HC373PW-Q100 equivalent, this device supports high-noise- immunity digital interfacing in temperature-critical automotive subsystems where precise timing control, bus isolation, and latch transparency during LE HIGH are required.
Technical Context
The 74HC373PW-Q100 implements eight independent D-type latches with synchronous transparent operation: when LE is HIGH, Qn follows Dn in real time; when LE transitions LOW, the input state is captured and held. Its 3-state outputs are controlled solely by OE (active LOW), decoupled from latch state - allowing bus sharing without disturbing stored data.
Input clamping diodes support interface to voltages exceeding VCC via current-limiting resistors. CMOS-level inputs (74HC variant) ensure compatibility with 3.3 V/5 V logic families, while AEC-Q100 qualification guarantees operation from −40 °C to +125 °C and robustness against latch-up (>100 mA per JESD78 Class II Level B).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 2.0 V to 6.0 V - enables direct use across 3.3 V and 5 V automotive domains without level shifting. |
| Propagation delay (Dn→Qn) | 12 ns (typ) at VCC = 6.0 V, CL = 50 pF - ensures tight timing margins in high-speed microcontroller peripheral buses. |
| Output drive strength | ±7.8 mA at VCC = 4.5 V - sufficient to drive standard TTL loads and multiple CMOS inputs on shared data buses. |
| Input voltage thresholds | VIH = 4.2 V (min), VIL = 1.8 V (max) at VCC = 6.0 V - provides >1.2 V noise margin under worst-case supply and temperature. |
| Quiescent supply current | 8.0 μA (typ) at VCC = 6.0 V - minimizes standby power in always-on vehicle modules. |
| ESD protection | HBM >2000 V, CDM >1000 V - meets automotive system-level ESD robustness requirements without external protection. |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood and transmission control applications per AEC-Q100 Grade 1. |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, side-wettable flanks for AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | 3-state output enable | Active LOW control - asserts high-impedance on all Q0–Q7 outputs regardless of latch state. |
| 2 (VCC) | Positive supply | Primary power rail; supports 2.0–6.0 V operation with internal regulation tolerance. |
| 3–4, 7–8, 13–14, 17–18 (D0–D7) | Data inputs | Eight asynchronous inputs directly sampled when LE is HIGH; clamped for overvoltage resilience. |
| 5, 6, 9, 12, 15, 16, 19 (Q0–Q7) | Latched outputs | Non-inverting 3-state outputs; retain last-latched value when LE is LOW and OE is HIGH. |
| 10 (GND) | Ground reference | 0 V return path for all internal circuitry and I/O; decoupling capacitor placement critical for noise immunity. |
| 11 (LE) | Latch enable | Active HIGH control - enables transparency (LE HIGH) or captures Dn (LE HIGH→LOW edge). |
| 20 (VCC) | Positive supply | Redundant VCC connection for improved power integrity in high-frequency switching. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C with extended reliability testing including HTOL and TC. |
| Independent LE and OE controls | Enables concurrent data capture (via LE) and bus release (via OE), supporting multi-master arbitration schemes. |
| CMOS-level input compatibility | VIH/VIL thresholds track VCC - eliminates need for external level shifters when interfacing with 3.3 V MCUs. |
| Clamp diode protected inputs | Allows safe connection to 12 V or CAN transceiver bias rails using series current-limiting resistors. |
| Low dynamic power dissipation | CPD = 45 pF per latch - limits switching power to <1 mW at 1 MHz with 50 pF load, reducing thermal load in dense PCB layouts. |
Applications
| Engine Control Unit (ECU) Interface | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|---|---|
|
Use Scenario: Isolating microcontroller GPIOs from high-current solenoid drivers and analog sensor ADCs in powertrain control modules. IC Role / Device Role / Timing Role: Octal latch buffers MCU parallel address/data bus to discrete driver ICs while maintaining signal integrity during transient load switching. Use Value: Prevents bus contention during simultaneous actuator activation and sensor readout; enables deterministic timing via LE edge-triggered capture. |
Use Scenario: Aggregating camera, radar, and ultrasonic sensor data streams into a centralized vision processor in L2+ ADAS platforms. IC Role / Device Role / Timing Role: Synchronizing burst-mode sensor outputs onto a shared parallel bus using LE-aligned sampling windows. Use Value: Eliminates metastability risk during cross-clock-domain transfers; 3-state outputs allow seamless bus handoff between sensor clusters. |
| Automotive Infotainment Display Controller | Body Control Module (BCM) I/O Expansion |
|
Use Scenario: Driving segment-based LED displays and touch controller interfaces in instrument clusters with variable refresh rates. IC Role / Device Role / Timing Role: Holding display column/row data stable during multiplexed scan cycles while OE manages bus access timing. Use Value: Reduces MCU firmware overhead by offloading display data staging; ±7.8 mA drive supports direct LED sink/source without external transistors. |
Use Scenario: Expanding GPIO count for door lock actuators, window lift motors, and ambient lighting PWM channels in distributed BCM architectures. IC Role / Device Role / Timing Role: Latching command signals from main MCU before enabling high-side switches, ensuring glitch-free actuation sequencing. Use Value: Enables fail-safe operation: latched states persist through brief MCU resets or brownouts, preventing unintended actuator motion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT373PW-Q100 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V); identical timing and packaging. | Better suited for legacy 5 V systems with mixed TTL/CMOS logic; slightly higher ICC at VCC = 5.5 V. | Select when interfacing with older 5 V microcontrollers or FPGAs lacking CMOS-level input thresholds. |
| SN74LVC373APWREP | 3.3 V only (1.65–3.6 V), lower VCC max, faster tpd (5.2 ns typ), different pinout (OE on pin 19, LE on pin 11). | Optimized for modern low-voltage automotive infotainment SoCs; not AEC-Q100 Grade 1 qualified. | Choose for cost-sensitive 3.3 V designs where AEC-Q100 Grade 1 is not mandated and layout space is constrained. |
Compared with 74HCT373PW-Q100, the HC variant offers superior noise immunity in mixed-signal environments; versus SN74LVC373APWREP, it trades speed for broader voltage flexibility and full automotive qualification - critical for powertrain and safety-related subsystems.
Availability
74HC373PW-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS sensor hubs, and body control modules requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for 74HC373PW-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, high-reliability logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile markets.
The 74HC373-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for robust bus interfacing in harsh-temperature vehicle subsystems where latch transparency, 3-state isolation, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum clock frequency supported by the 74HC373PW-Q100?
The 74HC373PW-Q100 is not a clocked register but a transparent latch - its effective data rate depends on LE pulse width and propagation delay. Minimum LE pulse width is 14 ns at VCC = 6.0 V, supporting latch rates up to ~35 MHz in ideal conditions. System-level timing must account for setup/hold times (tsu = 9 ns, th = +5 ns at VCC = 6.0 V) and bus loading.
Can OE and LE be tied together for simplified control?
No - OE and LE serve independent functions and must not be shorted. LE controls data capture (HIGH = transparent, LOW = hold), while OE controls output impedance (LOW = active, HIGH = high-Z). Tying them would prevent simultaneous latching and bus release, violating the device's intended bus-oriented operation and risking contention.
Does the 74HC373PW-Q100 support hot insertion or live bus swapping?
No - the device lacks hot-swap protection circuitry. Applying VCC before GND, or connecting to a live bus while unpowered, may exceed absolute maximum ratings (e.g., VI > VCC + 0.5 V), triggering input clamp conduction and potential damage. Power sequencing per manufacturer guidelines is mandatory.
How does the TSSOP20 package (SOT360-1) compare thermally to SO20?
The TSSOP20 package has a thermal resistance θJA of ~100 K/W (vs. ~120 K/W for SO20), due to thinner mold compound and enhanced pad exposure. Its Ptot derates at 10.0 mW/K above 100 °C - meaning at 125 °C ambient, usable power drops to ~250 mW. Use recommended copper pour and thermal vias for sustained 35 mA output loading.
74HC373PW-Q100,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 2V ~ 6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 12ns
- 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-TSSOP
74HC373PW-Q100,118 FAQ
1.How can I place an order for 74HC373PW-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC373PW-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 74HC373PW-Q100,118 reliable?
The price and inventory of 74HC373PW-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 74HC373PW-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74HC373PW-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC373PW-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC373PW-Q100,118?
74HC373PW-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC373PW-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 74HC373PW-Q100,118?
For technical support, including 74HC373PW-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC373PW-Q100,118 requirements.
6.How does Aetrix verify that 74HC373PW-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74HC373PW-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 74HC373PW-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74HC373PW-Q100,118?
All 74HC373PW-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC373PW-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 74HC373PW-Q100,118 part is unused and in its original packaging.
Return procedure for 74HC373PW-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC373PW-Q100,118 Tags
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SN74HC573APWR
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SN74HC573ADWR
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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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SN74LVC1G373DCKR
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SN74LVC1G373DBVR
Texas Instruments
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NC7SZ373P6X
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