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Nexperia USA Inc. 74HC273BQ-Q100X
- Part No.:
- 74HC273BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74HC273BQ-Q100X.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,042
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Product details
Overview
74HC273BQ-Q100 from Nexperia is an automotive-grade octal positive-edge-triggered D-type flip-flop with synchronous data capture and asynchronous master reset (active LOW). It operates across 2.0 V to 6.0 V supply, delivers ≤38 ns propagation delay at 6.0 V/CL=50 pF, and features eight independent D→Q registers sharing one clock (CP) and one master reset (MR) input-used in automotive body control modules for synchronized signal latching and fault-clearing logic.
For engineers reviewing the 74HC273BQ-Q100 datasheet, 74HC273BQ-Q100 pinout, 74HC273BQ-Q100 application, or 74HC273BQ-Q100 equivalent, this device is selected for deterministic edge-triggered state capture in safety-critical automotive subsystems requiring AEC-Q100 Grade 1 qualification, wide voltage tolerance, and robust noise immunity.
Technical Context
This device implements eight identical CMOS D-type flip-flops with a common positive-edge-sensitive clock and a shared active-LOW asynchronous master reset. Each flip-flop samples its Dn input on the LOW-to-HIGH transition of CP, provided setup (≥13 ns @ VCC=6.0 V) and hold (≥3 ns) timing constraints are met.
The MR input forces all Qn outputs LOW independently of CP or Dn states, enabling system-level initialization or fault recovery. Input clamp diodes allow interface to voltages exceeding VCC when used with current-limiting resistors, supporting mixed-voltage domain interfacing in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports direct integration into 3.3 V and 5 V automotive sub-systems without level-shifting. |
| Propagation Delay (tpd) | 13–38 ns @ VCC = 6.0 V, CL = 50 pF - enables reliable operation up to 24 MHz in high-speed control loops. |
| Set-up Time (tsu) | 10–15 ns @ VCC = 6.0 V - defines minimum Dn stability window before CP rising edge for valid sampling. |
| Hold Time (th) | 3 ns @ VCC = 6.0 V - specifies minimum Dn stability duration after CP rising edge to prevent metastability. |
| Output Drive Strength | ±4.0 mA @ VCC = 4.5 V - sufficient to directly drive multiple CMOS inputs or small LED indicators. |
| Operating Temperature | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Power Dissipation Capacitance | 20 pF - used to calculate dynamic power: PD = CPD × VCC² × fi + Σ(CL × VCC² × fo). |
Pinout & Package
DHVQFN20 package (SOT764-1), 2.5 mm × 4.5 mm × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, no leads, thermal pad exposed on bottom (non-electrical, floating or GND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (MR) | Master Reset input | Asynchronous active-LOW signal forcing all Qn outputs LOW regardless of clock or data state. |
| 2 (Q0) | Flip-flop output 0 | Registered output corresponding to D0 sampled on prior CP rising edge. |
| 3 (D0) | Data input 0 | Input latched into Q0 on next valid CP rising edge if MR is HIGH. |
| 4 (D1) | Data input 1 | Input latched into Q1 on next valid CP rising edge if MR is HIGH. |
| 5 (Q1) | Flip-flop output 1 | Registered output corresponding to D1 sampled on prior CP rising edge. |
| 6 (Q2) | Flip-flop output 2 | Registered output corresponding to D2 sampled on prior CP rising edge. |
| 7 (D2) | Data input 2 | Input latched into Q2 on next valid CP rising edge if MR is HIGH. |
| 8 (D3) | Data input 3 | Input latched into Q3 on next valid CP rising edge if MR is HIGH. |
| 9 (Q3) | Flip-flop output 3 | Registered output corresponding to D3 sampled on prior CP rising edge. |
| 10 (GND) | Ground reference | 0 V return path for all internal circuitry and I/O; thermal pad may be connected to GND for improved thermal performance. |
| 11 (CP) | Clock input | Positive-edge-triggered control signal synchronizing all eight D→Q transfers. |
| 12 (Q4) | Flip-flop output 4 | Registered output corresponding to D4 sampled on prior CP rising edge. |
| 13 (D4) | Data input 4 | Input latched into Q4 on next valid CP rising edge if MR is HIGH. |
| 14 (D5) | Data input 5 | Input latched into Q5 on next valid CP rising edge if MR is HIGH. |
| 15 (Q5) | Flip-flop output 5 | Registered output corresponding to D5 sampled on prior CP rising edge. |
| 16 (Q6) | Flip-flop output 6 | Registered output corresponding to D6 sampled on prior CP rising edge. |
| 17 (D6) | Data input 6 | Input latched into Q6 on next valid CP rising edge if MR is HIGH. |
| 18 (D7) | Data input 7 | Input latched into Q7 on next valid CP rising edge if MR is HIGH. |
| 19 (Q7) | Flip-flop output 7 | Registered output corresponding to D7 sampled on prior CP rising edge. |
| 20 (VCC) | Supply voltage | Primary power rail for core logic and I/O buffers; decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation in automotive powertrain and chassis systems. |
| Wide VCC range (2.0–6.0 V) | Eliminates need for external voltage translation when interfacing with 3.3 V microcontrollers and 5 V sensors. |
| Input clamp diodes | Enables safe interfacing to signals up to VCC + 0.5 V using series current-limiting resistors. |
| Side-wettable flanks (DHVQFN) | Supports automated optical inspection (AOI) of solder joints for high-reliability automotive PCB assembly. |
| ESD protection (HBM >2000 V) | Reduces risk of handling damage during SMT placement and board-level testing. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
|
Use Scenario: Latching door lock status, window position, and mirror adjustment commands from CAN/LIN transceivers before forwarding to actuator drivers. IC Role / Device Role / Timing Role: Synchronizes asynchronous command pulses to the BCM's main clock domain while providing hardware-level reset capability during power-on or fault recovery. Use Value: Ensures deterministic timing alignment across eight parallel control lines, preventing race conditions during multi-actuator coordination sequences. |
Use Scenario: Capturing and holding real-time vehicle speed, RPM, and warning lamp states from MCU GPIOs for display multiplexing logic. IC Role / Device Role / Timing Role: Acts as a buffered register bank isolating sensitive display timing circuitry from MCU bus noise and jitter. Use Value: Maintains stable display outputs during MCU interrupt servicing or low-power mode transitions, eliminating flicker or ghosting artifacts. |
| ADAS Camera Power Sequencing | Electric Power Steering (EPS) Diagnostic Latch |
|
Use Scenario: Storing camera sensor enable/disable states and configuration bits during cold boot or firmware update cycles. IC Role / Device Role / Timing Role: Provides glitch-free, edge-aligned storage of sequencing control signals synchronized to the ADAS SoC's reset release timing. Use Value: Guarantees precise power-up sequence execution by holding critical enable signals until all voltage rails stabilize and clocks lock. |
Use Scenario: Capturing fault flags (e.g., motor overcurrent, sensor timeout) from EPS MCU during transient events for post-failure analysis. IC Role / Device Role / Timing Role: Functions as a non-volatile latch (with external backup power) preserving diagnostic state across ignition cycles. Use Value: Enables root-cause diagnosis by retaining first-fault condition even after system reset or battery disconnect. |
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 |
|---|---|---|---|
| 74HCT273BQ-Q100 | TTL-compatible inputs (VIH = 2.0 V min), slightly higher tpd (≤45 ns @ VCC=4.5 V) and lower fmax (20 MHz). | Better suited for legacy 5 V systems with TTL-level microcontrollers or FPGAs lacking CMOS-level output swing. | Select when interfacing with older 5 V logic families where input threshold compatibility outweighs speed requirements. |
| SN74LVC273QPWRQ1 | Lower VCC range (1.65–3.6 V), faster tpd (≤6.5 ns @ 3.3 V), but only qualified to AEC-Q100 Grade 2 (−40 °C to +105 °C). | Optimized for modern 3.3 V ADAS domain controllers; insufficient for under-hood powertrain use above +105 °C. | Prefer for cost-sensitive, space-constrained 3.3 V applications where full Grade 1 temperature range is not required. |
Compared with 74HC273BQ-Q100, the 74HCT273BQ-Q100 trades speed for broader input voltage compatibility in 5 V systems, while the SN74LVC273QPWRQ1 offers higher speed at 3.3 V but sacrifices high-temperature operational margin required for engine bay deployment.
Availability
74HC273BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, ADAS camera power sequencing, and electric power steering diagnostic latching requiring stable component supply across extended temperature ranges.
Supply support for 74HC273BQ-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 logic, analog, and discrete components optimized for automotive, industrial, and consumer applications.
The 74HC273BQ-Q100 belongs to Nexperia's automotive-qualified HC logic family, designed specifically for robust, low-power, edge-triggered data registration in harsh-temperature automotive subsystems.
FAQ
Can the 74HC273BQ-Q100 operate reliably at 2.0 V supply?
Yes. The device is fully specified down to 2.0 V, with guaranteed propagation delay ≤150 ns and output drive ≥±20 μA at that voltage. It maintains AEC-Q100 Grade 1 qualification across the full −40 °C to +125 °C range at 2.0 V, making it suitable for low-voltage battery-sensed automotive subsystems.
Is the thermal pad on the DHVQFN20 package electrically connected?
No. The exposed thermal pad (terminal 1 index area) has no electrical function. Per datasheet note, it may remain floating or be connected to GND for thermal improvement-but must not be tied to any other potential. Soldering is optional and does not affect electrical performance.
What is the maximum clock frequency supported at 125 °C ambient?
At +125 °C and VCC = 6.0 V, the maximum guaranteed clock frequency is 24 MHz, derived from the worst-case propagation delay (38 ns) and minimum pulse width (13 ns) specifications. This ensures timing margin for synchronous operation in high-temperature engine control units.
Does the MR input require a pull-up resistor in automotive applications?
Yes. Since MR is active LOW and has no internal pull-up, a 10 kΩ external pull-up to VCC is recommended to ensure defined HIGH state during power-up, reset release, or open-circuit faults-critical for fail-safe behavior in automotive safety-related functions.
74HC273BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 20-VFQFN Exposed Pad
- 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:
- 122 MHz
- Max Propagation Delay @ V, Max CL:
- 26ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- 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-DHVQFN (4.5x2.5)
74HC273BQ-Q100X FAQ
1.How can I place an order for 74HC273BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC273BQ-Q100X 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 74HC273BQ-Q100X reliable?
The price and inventory of 74HC273BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC273BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74HC273BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC273BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC273BQ-Q100X?
74HC273BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC273BQ-Q100X 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 74HC273BQ-Q100X?
For technical support, including 74HC273BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC273BQ-Q100X requirements.
6.How does Aetrix verify that 74HC273BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74HC273BQ-Q100X 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 74HC273BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74HC273BQ-Q100X?
All 74HC273BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74HC273BQ-Q100X, 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 74HC273BQ-Q100X part is unused and in its original packaging.
Return procedure for 74HC273BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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