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Nexperia USA Inc. 74HCT273D-Q100J
- Part No.:
- 74HCT273D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74HCT273D-Q100J.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,410
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Product details
Overview
74HCT273D-Q100 from Nexperia is an automotive-grade octal positive-edge-triggered D-type flip-flop with synchronous data capture and asynchronous master reset (MR). It operates across -40 °C to +125 °C, supports 4.5 V to 5.5 V supply, features TTL-compatible inputs, and delivers ≤45 ns propagation delay (VCC = 4.5 V, CL = 50 pF), enabling reliable data latching in engine control units and ADAS sensor interfaces.
For engineers reviewing the 74HCT273D-Q100 datasheet, 74HCT273D-Q100 pinout, 74HCT273D-Q100 application, or 74HCT273D-Q100 equivalent, this device is selected for deterministic edge-triggered state capture in safety-critical automotive logic systems requiring AEC-Q100 Grade 1 qualification, robust noise immunity, and precise setup/hold timing (tsu = 12 ns, th = 3 ns at VCC = 4.5 V).
Technical Context
This device implements eight independent D-type flip-flops sharing a common clock (CP) and active-low master reset (MR), with all outputs updated synchronously on the LOW-to-HIGH CP transition. Input clamping diodes enable interface to voltages exceeding VCC when used with current-limiting resistors.
It adheres to JEDEC standards JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V), supports CMOS-level power efficiency (<160 μA ICC at 125 °C), and achieves latch-up immunity >100 mA per JESD78 Class II Level B - critical for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Octal positive-edge-triggered D-type flip-flop with asynchronous master reset |
| Supply Voltage | 4.5 V to 5.5 V - matches standard 5 V automotive rail with ±0.5 V tolerance margin |
| Propagation Delay (tpd) | ≤45 ns at VCC = 4.5 V, CL = 50 pF - ensures timing closure in 20 MHz+ synchronous logic |
| Set-up / Hold Time | tsu = 12 ns, th = 3 ns at VCC = 4.5 V - defines minimum data stability window before/after CP edge |
| Operating Temperature | -40 °C to +125 °C - qualified for engine bay and transmission control module placement |
| AEC-Q100 Grade | Grade 1 - certified for automotive powertrain and chassis applications per AEC standard |
| Input Compatibility | TTL-level - interfaces directly with legacy 5 V microcontrollers and logic without level shifters |
Pinout & Package
74HCT273D-Q100 uses the SO20 (SOT163-1) package: plastic small outline, 20 leads, 7.5 mm body width, with gull-wing leads and standard 1.27 mm pitch.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MR | Active-low master reset - forces all Qn outputs LOW independently of clock or data |
| 2, 5, 6, 9, 12, 15, 16, 19 | Q0–Q7 | Flip-flop outputs - reflect Dn state sampled on LOW-to-HIGH CP transition |
| 3, 4, 7, 8, 13, 14, 17, 18 | D0–D7 | Data inputs - sampled at CP rising edge if setup/hold times met |
| 10 | GND | Ground reference - return path for all internal logic and output currents |
| 11 | CP | Clock input - rising-edge trigger for synchronous data capture across all eight stages |
| 20 | VCC | Supply voltage - powers internal CMOS circuitry and drives output loads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive powertrain and chassis systems operating from -40 °C to +125 °C |
| TTL-compatible input thresholds | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V - enables direct interfacing with 5 V MCU GPIOs |
| Clamped inputs with ESD protection | HBM >2000 V, CDM >1000 V - protects against assembly and in-system electrostatic discharge events |
| Low dynamic power dissipation | CPD = 23 pF - limits switching power to <1.3 mW at 10 MHz (VCC = 5 V), reducing thermal load |
| High noise immunity | Typical VIH-VIL margin >1.2 V at VCC = 5 V - suppresses false triggering in electrically noisy vehicle environments |
Applications
| Engine Control Unit (ECU) Data Latching | ADAS Sensor Interface Buffering |
|---|---|
|
Use Scenario: Capturing synchronized sensor readings (e.g., crankshaft position, camshaft timing) before processing by the main MCU. IC Role / Device Role / Timing Role: Octal D-flip-flop providing edge-aligned, glitch-free storage of parallel digital signals from Hall-effect or optical sensors. Use Value: Ensures deterministic sampling at precise crank angle intervals, eliminating metastability in real-time engine timing loops. |
Use Scenario: Isolating and buffering camera or radar preprocessor outputs before transmission to domain controllers. IC Role / Device Role / Timing Role: Synchronous register holding frame metadata or status flags during high-speed pixel data transfer. Use Value: Prevents signal skew between parallel status bits, maintaining integrity of time-critical ADAS decision windows. |
| Transmission Control Module (TCM) State Register | Body Control Module (BCM) I/O Expansion |
|
Use Scenario: Storing gear selection, clutch engagement, and solenoid command states across power cycles and transient conditions. IC Role / Device Role / Timing Role: Non-volatile-latched register bank retaining commanded actuator states during brief supply dips or reset sequences. Use Value: Enables fail-safe holdover of last valid transmission state, supporting ASIL-B functional safety requirements. |
Use Scenario: Expanding discrete I/O capability for door lock actuators, mirror controls, and lighting drivers in centralized BCM designs. IC Role / Device Role / Timing Role: Parallel output latch driving 8-channel low-side switches or optocouplers with common clock synchronization. Use Value: Reduces MCU GPIO count while ensuring simultaneous activation of multiple body functions without timing skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT273PW-Q100 | TSSOP20 package (4.4 mm width); 10.0 mW/K thermal derating above 100 °C | Better PCB space efficiency; lower thermal mass but reduced heat dissipation vs. SO20 | Select for compact layouts where board area is constrained and ambient temperature remains ≤100 °C |
| SN74HCT273QPWRQ1 | Texas Instruments variant; identical function, timing, and AEC-Q100 Grade 1 rating; different pinout (MR on Pin 19, CP on Pin 3) | Not pin-compatible; requires PCB redesign and layout verification | Choose only when TI supply chain assurance or dual-sourcing strategy mandates TI branding |
Compared with 74HCT273D-Q100, the PW variant trades thermal robustness for footprint reduction, while the TI SN74HCT273QPWRQ1 offers functional equivalence but demands full hardware revalidation due to non-identical pin mapping and packaging.
Availability
74HCT273D-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS sensor interfaces, and transmission control modules requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for 74HCT273D-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 74HCT273-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically to meet stringent AEC-Q100 reliability, thermal, and ESD requirements in safety-critical vehicle subsystems.
FAQ
What is the maximum clock frequency supported by 74HCT273D-Q100?
The device supports up to 24 MHz maximum clock frequency at VCC = 4.5 V and Tamb = +125 °C (fmax = 24 MHz), verified under recommended operating conditions with CL = 50 pF. At 25 °C and VCC = 4.5 V, typical fmax reaches 56 MHz. This rating assumes proper PCB layout, decoupling, and signal integrity - no external clock conditioning is required.
Can 74HCT273D-Q100 operate with a 3.3 V supply?
No - 74HCT273D-Q100 is specified only for 4.5 V to 5.5 V operation per its recommended conditions table. Using 3.3 V violates the minimum VCC requirement and results in undefined input thresholds (VIH/VIL), unreliable output drive (VOH/VOL), and potential functional failure. For 3.3 V systems, consider the 74LVC273 or automotive-grade 74LVC273-Q100 instead.
How does the master reset (MR) interact with the clock input?
MR is asynchronous and dominant: a LOW on MR forces all Qn outputs LOW immediately, regardless of CP state or timing. The reset overrides ongoing clock activity and holds outputs low until MR returns HIGH. Once MR is deasserted, the next LOW-to-HIGH CP transition captures Dn inputs - no additional clock edge is needed to restore normal operation.
Is the SO20 package of 74HCT273D-Q100 compatible with lead-free reflow profiles?
Yes - the SOT163-1 (SO20) package is qualified for standard lead-free reflow per JEDEC J-STD-020, with peak temperature up to 260 °C for ≤60 seconds. Its plastic body and gull-wing leads withstand IPC-A-610 Class 3 assembly requirements, and the device's 12.3 mW/K thermal derating above 109 °C ensures safe operation post-reflow in automotive thermal environments.
74HCT273D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 36 MHz
- Max Propagation Delay @ V, Max CL:
- 30ns @ 4.5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 4mA, 5.2mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74HCT273D-Q100J FAQ
1.How can I place an order for 74HCT273D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT273D-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 74HCT273D-Q100J reliable?
The price and inventory of 74HCT273D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT273D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT273D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT273D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT273D-Q100J?
74HCT273D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT273D-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 74HCT273D-Q100J?
For technical support, including 74HCT273D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT273D-Q100J requirements.
6.How does Aetrix verify that 74HCT273D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT273D-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 74HCT273D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT273D-Q100J?
All 74HCT273D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT273D-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 74HCT273D-Q100J part is unused and in its original packaging.
Return procedure for 74HCT273D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT273D-Q100J Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
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74LVC1G74GT,115
Nexperia USA Inc.
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SN74LVC2G74DCUR
Texas Instruments
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CD4013BM96
Texas Instruments
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SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
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SN74HC273DWR
Texas Instruments
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SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
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