My Inquiry
My Account
Nexperia USA Inc. 74HCT393D-Q100J
- Part No.:
- 74HCT393D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT393D-Q100J.pdf
- Description:
- IC BINARY COUNTER DL 4BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,411
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HCT393D-Q100 from Nexperia is an automotive-qualified dual 4-bit binary ripple counter IC with TTL-compatible inputs, asynchronous master reset per counter, and SO14 (SOT108-1) package. It advances on HIGH-to-LOW clock edges, delivers up to 48 MHz max clock frequency at VCC = 4.5 V, features ±25 mA output drive, and operates across -40 °C to +125 °C for engine control timing and body electronics counting functions.
For engineers reviewing the 74HCT393D-Q100 datasheet, 74HCT393D-Q100 pinout, 74HCT393D-Q100 application, or 74HCT393D-Q100 equivalent, this device serves as a drop-in-ready, AEC-Q100 Grade 1–qualified binary divider for automotive clock domain partitioning, pulse width measurement, and event counting where deterministic ripple propagation and independent reset control are required.
Technical Context
This dual counter implements two independent 4-stage asynchronous (ripple) chains using edge-triggered D-type flip-flops. Each counter advances on the falling edge of its dedicated clock input (1CP/2CP), with no internal synchronization between stages - resulting in cumulative propagation delay across Q0→Q1→Q2→Q3.
Each counter has a dedicated active-HIGH asynchronous master reset (1MR/2MR) that forces all four outputs LOW regardless of clock state. Input clamp diodes enable safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 4-bit binary ripple counter with independent clocks and resets |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5 V automotive logic rails |
| Max Clock Frequency | 48 MHz at VCC = 4.5 V, CL = 50 pF - supports high-speed event counting in powertrain modules |
| Propagation Delay (nCP → nQ0) | 25 ns typical at VCC = 4.5 V - defines minimum clock period for reliable stage advancement |
| Output Drive Strength | ±4 mA at VOH/VOL - sufficient to drive standard CMOS/TTL loads without buffering |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood and transmission control unit environments |
| AEC-Q100 Grade | Grade 1 - certified for automotive applications requiring extended temperature reliability |
Pinout & Package
74HCT393D-Q100 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1CP | Falling-edge clock input for Counter 1 - triggers Q0 toggle and initiates ripple chain |
| 2 | VCC | Positive supply rail (4.5–5.5 V) - powers both counters and output buffers |
| 3 | 1MR | Asynchronous master reset for Counter 1 - clears Q0–Q3 to LOW immediately |
| 4 | 2CP | Falling-edge clock input for Counter 2 - fully independent of Counter 1 timing |
| 5 | 1Q0 | LSB output of Counter 1 - toggles on every 1CP falling edge |
| 6 | 2MR | Asynchronous master reset for Counter 2 - no effect on Counter 1 outputs |
| 7 | 1Q1 | Second-bit output of Counter 1 - toggles every two 1CP cycles |
| 8 | 2Q0 | LSB output of Counter 2 - independent timing domain from Counter 1 |
| 9 | 1Q2 | Third-bit output of Counter 1 - divides 1CP by 4 |
| 10 | 2Q1 | Second-bit output of Counter 2 - divides 2CP by 2 |
| 11 | 1Q3 | MSB output of Counter 1 - completes 4-bit modulo-16 count (0–15) |
| 12 | 2Q2 | Third-bit output of Counter 2 - divides 2CP by 4 |
| 13 | GND | Ground reference (0 V) - return path for all internal logic and I/O currents |
| 14 | 2Q3 | MSB output of Counter 2 - completes independent 4-bit modulo-16 count |
Key Features
| Feature | Design Value |
|---|---|
| TTL-level input compatibility | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V - interfaces directly with legacy 5 V microcontrollers and sensors |
| Independent dual-counter architecture | Two isolated 4-bit ripple chains with separate clocks and resets - enables concurrent timing of unrelated events (e.g., crankshaft + camshaft pulses) |
| Automotive qualification | AEC-Q100 Grade 1 compliance - validated for life-critical automotive subsystems including ADAS sensor synchronization |
| High noise immunity | CMOS process with hysteresis-free inputs and >40 % noise margin - robust against EMI in vehicle harness environments |
| Clamp diode protection | Input clamp diodes allow safe interface to signals up to VCC + 0.5 V - eliminates need for external clamping in mixed-voltage domains |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Counting crankshaft position sensor pulses to determine engine RPM and ignition timing. IC Role / Device Role / Timing Role: Dual counter captures rising/falling edges or separates primary/secondary timing events using independent 1CP/2CP inputs. Use Value: Enables precise 16-step resolution per revolution without MCU intervention, reducing CPU load and jitter in real-time spark advance calculation. |
Use Scenario: Measuring door lock actuator run-time to detect mechanical binding or motor stall. IC Role / Device Role / Timing Role: One counter measures pulse width of driver enable signal; second tracks total activation cycles for wear monitoring. Use Value: Provides hardware-based timing accuracy unaffected by software interrupts, supporting ISO 26262 ASIL-B diagnostic coverage for safety-critical locking functions. |
| Advanced Driver Assistance Systems (ADAS) | Transmission Control Unit (TCU) |
|
Use Scenario: Capturing time-of-flight intervals from ultrasonic parking sensors. IC Role / Device Role / Timing Role: Counter 1 starts on transmit pulse; Counter 2 stops on echo detection - difference yields distance. Use Value: Delivers sub-microsecond resolution via ripple-chain propagation, enabling <5 cm ranging accuracy without high-frequency oscillator or FPGA resources. |
Use Scenario: Monitoring turbine speed vs. output shaft speed for torque converter slip detection. IC Role / Device Role / Timing Role: Two independent counters track encoder pulses from input and output shafts over identical gate periods. Use Value: Enables real-time ratio computation in analog domain, improving response time for lock-up clutch engagement decisions during gear shifts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual binary counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC393D-Q100 | CMOS-level inputs (VIH = 3.15 V min at VCC = 4.5 V); higher noise margin but requires ≥3.15 V logic high | Better suited for pure CMOS systems; incompatible with 3.3 V-tolerant 5 V microcontrollers driving low VIH | Select when interfacing with HC-family logic or when maximum noise immunity is prioritized over TTL compatibility |
| SN74LV393AQPWRQ1 | Lower VCC range (2.0–5.5 V); LV logic thresholds; 32 MHz max fCLK at VCC = 4.5 V; same SO14 package | Optimized for mixed-voltage designs; lower power but reduced speed margin for high-RPM engine sensing | Choose for battery-powered modules or when supply voltage may dip below 4.5 V while maintaining AEC-Q100 Grade 1 |
Compared with 74HC393D-Q100 and SN74LV393AQPWRQ1, the 74HCT393D-Q100 uniquely balances TTL input compatibility, 48 MHz speed headroom, and full AEC-Q100 Grade 1 qualification - making it the optimal choice for 5 V automotive timing where legacy interface support and worst-case thermal performance are mandatory.
Availability
74HCT393D-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS sensor interfaces requiring stable component supply across automotive production lifecycles.
Supply support for 74HCT393D-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 components for automotive, industrial, and consumer electronics, with leadership in logic, discrete, and MOSFET technologies.
The 74HCT393D-Q100 belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for timing-critical functions in harsh-environment vehicle systems where AEC-Q100 compliance and parametric stability are non-negotiable.
FAQ
Is the 74HCT393D-Q100 pin-compatible with standard 74HCT393 devices?
Yes - the 74HCT393D-Q100 shares identical SO14 pinout, electrical characteristics, and functional behavior with industrial-grade 74HCT393, but adds AEC-Q100 Grade 1 qualification, extended temperature operation (-40 °C to +125 °C), and automotive-specific reliability testing per JESD22 and AEC standards.
Can both counters operate simultaneously from the same clock source?
Yes - 1CP and 2CP can be tied together externally to drive both counters synchronously, though their ripple propagation delays remain independent. This configuration enables 8-bit counting (modulo-256) with cascaded carry-out capability using Q3 outputs as secondary clocks.
What is the maximum allowable clock duty cycle asymmetry?
The device specifies minimum pulse widths: tW(nCP) = 19 ns HIGH and 19 ns LOW at VCC = 4.5 V. Asymmetry is permitted as long as both HIGH and LOW periods meet or exceed these values - no strict 50/50 requirement, enabling use with non-square wave sensors like VR pickups.
Does the 74HCT393D-Q100 support hot insertion or live-state reset?
No - the device lacks hot-swap protection circuitry. Applying VCC while inputs are driven violates Absolute Maximum Ratings (VIIK limit ±20 mA). Master reset (1MR/2MR) is asynchronous and functional only after VCC stabilizes within 4.5–5.5 V; asserting reset before power-up may cause undefined output states.
74HCT393D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- 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:
- 53 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HCT393D-Q100J FAQ
1.How can I place an order for 74HCT393D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT393D-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 74HCT393D-Q100J reliable?
The price and inventory of 74HCT393D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT393D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT393D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT393D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT393D-Q100J?
74HCT393D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT393D-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 74HCT393D-Q100J?
For technical support, including 74HCT393D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT393D-Q100J requirements.
6.How does Aetrix verify that 74HCT393D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT393D-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 74HCT393D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT393D-Q100J?
All 74HCT393D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT393D-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 74HCT393D-Q100J part is unused and in its original packaging.
Return procedure for 74HCT393D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT393D-Q100J Tags
-
74HC393BQ,115
Nexperia USA Inc.
-
SN74LV8154PWR
Texas Instruments
-
MC14516BDR2G
onsemi
-
MC14020BDR2G
onsemi
-
MC100EP32DTR2G
onsemi
-
MC100EP016AMNG
onsemi
-
MC100EP016AFAG
onsemi
-
SN74LV163ADR
Texas Instruments
-
SN74LV163APWR
Texas Instruments
-
SN74HC393DR
Texas Instruments
-
SN74HC161DR
Texas Instruments
-
SN74HC163DR
Texas Instruments
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
