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Nexperia USA Inc. 74HC393BQ-Q100X
- Part No.:
- 74HC393BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74HC393BQ-Q100X.pdf
- Description:
- IC BIN COUNTER DL 4BIT 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
74HC393BQ-Q100 from Nexperia is an automotive-qualified dual 4-bit binary ripple counter IC with independent clock and master reset inputs per counter, CMOS-level input compatibility, 2.0 V to 6.0 V supply range, and DHVQFN14 package. It advances on HIGH-to-LOW clock transitions, clears outputs asynchronously via active-HIGH nMR, and delivers buffered Q0–Q3 outputs for frequency division up to 2⁸ in a single package-used in engine control timing, dashboard display multiplexing, and body electronics clock management.
For engineers reviewing the 74HC393BQ-Q100 datasheet, 74HC393BQ-Q100 pinout, 74HC393BQ-Q100 application, or 74HC393BQ-Q100 equivalent, this page provides verified functional architecture, AEC-Q100 Grade 1 thermal and electrical specifications, DHVQFN14 terminal mapping, and validated alternatives for automotive timing and counting circuits requiring ripple-mode operation and dual-channel independence.
Technical Context
This device implements two independent asynchronous 4-stage ripple counters using edge-triggered D-type flip-flops cascaded in series. Each counter advances on the HIGH-to-LOW transition of its dedicated clock (1CP or 2CP), with no internal synchronization between channels. The asynchronous master reset (1MR/2MR) forces all four output bits LOW regardless of clock state, enabling immediate state clearing without waiting for clock edges.
Input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The DHVQFN14 package features side-wettable flanks for AOI-compatible solder joint inspection-critical for automotive production traceability and reliability assurance under -40 °C to +125 °C operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 4-bit binary ripple counter with independent clocks and resets |
| Supply Voltage Range | 2.0 V to 6.0 V - supports wide-battery automotive systems and mixed-voltage logic domains |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and cabin applications |
| Max Clock Frequency | 107 MHz at VCC = 6.0 V - enables high-speed division for sensor sampling and PWM generation |
| Propagation Delay (nCP→nQ0) | 12 ns typical at VCC = 6.0 V - defines minimum clock period for reliable ripple-stage advancement |
| Output Drive Strength | ±25 mA - sufficient to drive multiple TTL/CMOS loads or small LED segments directly |
| Power Dissipation Capacitance | 23 pF - used to calculate dynamic power: PD = CPD × VCC² × fi × N + Σ(CL × VCC² × fo) |
Pinout & Package
DHVQFN14 (SOT762-1) package: 2.5 mm × 3.0 mm × 0.85 mm body, 14 terminals, side-wettable flanks, thermal-enhanced construction for automotive reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1Q3 | Most significant bit output of Counter 1 (2³) |
| 2 | 2Q2 | Second most significant bit output of Counter 2 (2²) |
| 3 | 1Q2 | Second most significant bit output of Counter 1 (2²) |
| 4 | 2Q1 | Second least significant bit output of Counter 2 (2¹) |
| 5 | 1Q1 | Second least significant bit output of Counter 1 (2¹) |
| 6 | 2Q0 | Least significant bit output of Counter 2 (2⁰) |
| 7 | 1Q0 | Least significant bit output of Counter 1 (2⁰) |
| 8 | 2MR | Asynchronous master reset for Counter 2 (active HIGH) |
| 9 | 1MR | Asynchronous master reset for Counter 1 (active HIGH) |
| 10 | 2CP | Clock input for Counter 2 (HIGH-to-LOW edge-triggered) |
| 11 | GND | Ground reference (0 V) for all internal circuitry and I/O |
| 12 | 2Q3 | Most significant bit output of Counter 2 (2³) |
| 13 | 1CP | Clock input for Counter 1 (HIGH-to-LOW edge-triggered) |
| 14 | VCC | Positive supply voltage (2.0 V to 6.0 V); pad must remain floating or connect to VCC |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use across -40 °C to +125 °C ambient, including thermal cycling and humidity testing |
| Independent dual-counter architecture | Enables simultaneous but non-synchronized division ratios (e.g., 1/16 and 1/8) without inter-channel coupling |
| Clamp diode-equipped inputs | Permits safe interface to signals > VCC using external current-limiting resistors-eliminates need for level shifters |
| DHVQFN14 with side-wettable flanks | Supports automated optical inspection (AOI) of solder joints for zero-defect manufacturing in automotive SMT lines |
| CMOS-level input thresholds | VIH ≥ 0.7×VCC and VIL ≤ 0.3×VCC ensures noise immunity and compatibility with 3.3 V/5 V microcontroller GPIOs |
Applications
| Engine Control Unit Timing | Instrument Cluster Display Multiplexing |
|---|---|
Use Scenario: Generating precise timing windows for fuel injector pulse width modulation and spark advance calculation. IC Role / Device Role / Timing Role: Dual counter provides independent 1/16 and 1/8 divisions of main system clock to derive crankshaft position sampling intervals and camshaft sync pulses. Use Value: Enables deterministic timing resolution down to ~9 ns (at 107 MHz) while maintaining AEC-Q100 compliance for safety-critical engine functions. |
Use Scenario: Driving segmented LCD backlight scanning and analog gauge stepper motor sequencing in digital dashboards. IC Role / Device Role / Timing Role: One counter divides MCU clock for segment enable strobes; second counter sequences analog driver DAC updates at fixed intervals. Use Value: Reduces MCU GPIO load and firmware overhead by offloading repetitive timing tasks-improves real-time responsiveness and display update consistency. |
| Body Control Module Window Lift Control | ADAS Camera Frame Sync Generator |
Use Scenario: Managing anti-pinch motor timing and window position feedback sampling in power window subsystems. IC Role / Device Role / Timing Role: Ripple counter generates variable-frequency PWM for motor speed control and synchronizes ADC sampling of current sense signals. Use Value: Provides jitter-free, hardware-based timing independent of software interrupts-ensures consistent torque response and stall detection accuracy. |
Use Scenario: Deriving synchronized frame start pulses and pixel clock dividers for multi-camera fusion modules. IC Role / Device Role / Timing Role: First counter produces camera shutter trigger; second counter subdivides pixel clock for column/row addressing logic. Use Value: Eliminates timing skew between cameras by distributing hardware-generated clocks-critical for stereo depth calculation and motion vector estimation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-bit binary ripple counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT393BQ-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and function | Better interoperability with legacy 5 V TTL logic families; slightly higher ICC at VCC = 5 V | Select when interfacing with older microcontrollers or discrete logic with TTL output levels |
| SN74LV393AQPWRQ1 | Lower VCC range (1.65 V–5.5 V), LV-CMOS process, different pin assignment (SO-14 only) | Optimized for low-voltage automotive infotainment; not pin-compatible; lacks side-wettable flanks | Choose for 1.8 V/3.3 V systems where DHVQFN14 footprint is not required and AOI is not mandated |
Compared with 74HC393BQ-Q100, the 74HCT393BQ-Q100 offers direct TTL-level compatibility without level-shifting, while the SN74LV393AQPWRQ1 trades package flexibility and AOI support for lower-voltage operation-making the HC variant optimal for new 5 V automotive designs requiring full AEC-Q100 traceability and manufacturability.
Availability
74HC393BQ-Q100 is available at Aetrix Electronics and suitable for engine control units, instrument clusters, body control modules, and ADAS camera synchronization requiring stable component supply with full automotive qualification and long-term lifecycle support.
Supply support for 74HC393BQ-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, reliable components for automotive, industrial, and consumer markets.
The 74HC393-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically for robust, low-power counting and timing functions in harsh-temperature environments where AEC-Q100 compliance and solder-joint inspectability are mandatory.
FAQ
What is the maximum clock frequency supported by the 74HC393BQ-Q100?
The 74HC393BQ-Q100 supports a maximum clock frequency of 107 MHz at VCC = 6.0 V and CL = 50 pF, as specified in Table 7 of the Rev. 4 datasheet. At 4.5 V, the max frequency drops to 90 MHz. This rating applies per individual counter channel and assumes proper PCB layout with controlled impedance and minimal capacitive loading.
Can the two counters operate synchronously using a shared clock signal?
No-the 74HC393BQ-Q100 does not support synchronous operation between counters. Each counter has its own dedicated clock input (1CP and 2CP), and there is no internal synchronization mechanism. Sharing one clock signal across both inputs results in independent, unsynchronized ripple propagation due to inherent stage-to-stage delays, making it unsuitable for true 8-bit synchronous counting.
Is the VCC pad on the DHVQFN14 package required to be soldered?
No-the VCC pad (terminal 14) is not electrically or mechanically required to be soldered. As stated in Figure 8, "This is not a supply pin. There is no electrical or mechanical requirement to solder the pad." If soldered, it must remain electrically floating or be connected directly to the VCC net-never left as a floating metal plane.
How does the 74HC393BQ-Q100 differ from the standard 74HC393 in automotive contexts?
The 74HC393BQ-Q100 undergoes full AEC-Q100 Grade 1 qualification (−40 °C to +125 °C), includes extended reliability testing (HTOL, TC, UHAST), uses automotive-grade wafer lots and assembly sites, and ships with PPAP documentation. Standard 74HC393 variants lack these qualifications and are not approved for automotive safety-critical or under-hood deployment.
74HC393BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Reset:
- Asynchronous
- Timing:
- -
- Count Rate:
- 107 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 2 V ~ 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74HC393BQ-Q100X FAQ
1.How can I place an order for 74HC393BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC393BQ-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 74HC393BQ-Q100X reliable?
The price and inventory of 74HC393BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC393BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74HC393BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC393BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC393BQ-Q100X?
74HC393BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC393BQ-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 74HC393BQ-Q100X?
For technical support, including 74HC393BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC393BQ-Q100X requirements.
6.How does Aetrix verify that 74HC393BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74HC393BQ-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 74HC393BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74HC393BQ-Q100X?
All 74HC393BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74HC393BQ-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 74HC393BQ-Q100X part is unused and in its original packaging.
Return procedure for 74HC393BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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