My Inquiry
My Account
Nexperia USA Inc. 74HCT4020D-Q100J
- Part No.:
- 74HCT4020D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT4020D-Q100J.pdf
- Description:
- IC BINARY COUNTER 14-BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HCT4020D-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 14-stage binary ripple counter in SO16 package, advancing on HIGH-to-LOW clock transitions, featuring asynchronous master reset (MR), 12 buffered outputs (Q0, Q3–Q13), and TTL-compatible inputs. It operates from 4.5 V to 5.5 V across –40 °C to +125 °C and is used in automotive timing control circuits requiring precise frequency division.
For engineers reviewing the 74HCT4020D-Q100 datasheet, 74HCT4020D-Q100 pinout, 74HCT4020D-Q100 application, or 74HCT4020D-Q100 equivalent, key selection criteria include its edge-triggered ripple architecture, automotive-grade thermal range, MR-driven synchronous clear behavior, and SO16 mechanical compatibility with legacy PCB footprints.
Technical Context
This device implements a cascaded chain of 14 static toggle flip-flops, where each stage divides the preceding stage's output by two - yielding Q13 as the 2¹³ = 8192 divider output. The counter advances only on the falling edge of CP, and MR forces all outputs LOW asynchronously, independent of clock state.
Input levels conform to TTL thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V), ensuring direct interfacing with legacy 5 V logic families. Propagation delay from CP to Q0 is 18–54 ns (–40 °C to +125 °C), and maximum operating frequency reaches 25 MHz at VCC = 4.5 V with CL = 50 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 14-stage asynchronous binary ripple counter with single-clock edge trigger and global reset |
| Supply Voltage | 4.5 V to 5.5 V - matches standard 5 V automotive bus rails and ensures compatibility with TTL-level drivers |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications |
| Propagation Delay (CP→Q0) | 18–54 ns - defines minimum clock period for reliable counting up to 25 MHz at worst-case temperature |
| Output Drive | ±4.0 mA at VOH/VOL - sufficient to drive multiple 74-series inputs or small capacitive loads without buffering |
| Input Compatibility | TTL-level - accepts standard 5 V logic high/low without level-shifting circuitry |
| Package | SO16 (SOT109-1), 3.9 mm body width - industry-standard footprint enabling drop-in replacement in existing designs |
Pinout & Package
74HCT4020D-Q100 uses the plastic small outline package (SO16) per SOT109-1, with 16 leads, 3.9 mm body width, and gull-wing lead form. Pin 1 index is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Q11 | 2¹¹ = 2048÷1 output - used for mid-range frequency division or cascade enable signals |
| 2 | VCC | Positive supply input - must be decoupled locally with 100 nF ceramic capacitor near pin |
| 3 | Q12 | 2¹² = 4096÷1 output - common reference for 4 kHz → 1 Hz downconversion in timer modules |
| 4 | Q10 | 2¹⁰ = 1024÷1 output - feeds secondary counters or interrupt timing windows |
| 5 | Q13 | 2¹³ = 8192÷1 output - highest-order bit; used as system tick or watchdog timeout signal |
| 6 | Q9 | 2⁹ = 512÷1 output - supports baud rate generation or LED blink intervals |
| 7 | Q5 | 2⁵ = 32÷1 output - suitable for PWM prescaling or debounce timing |
| 8 | GND | Ground reference - requires low-impedance connection to PCB ground plane |
| 9 | Q3 | 2³ = 8÷1 output - provides coarse clock enables for peripheral gating |
| 10 | CP | Asynchronous clock input - triggers count advance on HIGH-to-LOW transition only |
| 11 | MR | Master reset input - active HIGH; clears all stages regardless of CP state |
| 12 | Q8 | 2⁸ = 256÷1 output - commonly used for real-time clock subsecond division |
| 13 | Q7 | 2⁷ = 128÷1 output - feeds audio sample rate dividers or sensor sampling clocks |
| 14 | Q4 | 2⁴ = 16÷1 output - supports multiplexed display scanning or address sequencing |
| 15 | Q6 | 2⁶ = 64÷1 output - used in motor phase timing or encoder quadrature scaling |
| 16 | Q0 | 2⁰ = 2÷1 output - toggles at half the CP frequency; primary feedback path for oscillator stabilization |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from –40 °C to +125 °C with full reliability testing per stress test conditions |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 4.5–5.5 V supply - eliminates need for external level shifters when interfacing with microcontrollers or legacy logic |
| Asynchronous master reset | MR forces all outputs LOW independently of CP - enables deterministic initialization in safety-critical boot sequences |
| Clamp diodes on all inputs | Permits use of current-limiting resistors for overvoltage protection up to ±20 mA - simplifies interface to sensors or long-trace signals |
| Low dynamic power dissipation | CPD = 20 pF - limits switching current draw and reduces heat generation in thermally constrained modules |
Applications
| Automotive Engine Control Timing | Infotainment System Clock Division |
|---|---|
|
Use Scenario: Generating precise 1 Hz and 100 Hz timing references from a 100 kHz crystal oscillator in engine ECU firmware synchronization. IC Role / Device Role / Timing Role: Ripple counter providing deterministic divide-by-1000 and divide-by-100 outputs via Q10 and Q7 pins. Use Value: Enables jitter-free periodic interrupts for fuel injection pulse width calculation and knock sensor sampling without MCU timer resource overhead. |
Use Scenario: Deriving multiple synchronized audio sample rates (e.g., 44.1 kHz, 22.05 kHz, 11.025 kHz) from a 176.4 kHz master clock in head unit DSP subsystems. IC Role / Device Role / Timing Role: Frequency divider supplying Q5, Q6, and Q7 outputs as clock enables to downstream DACs and filters. Use Value: Reduces clock tree complexity and eliminates need for separate PLLs or programmable dividers in cost-sensitive infotainment BOMs. |
| Body Control Module Delay Circuits | ADAS Camera Frame Sync Generator |
|
Use Scenario: Implementing configurable time-delay turn-off for interior lighting using RC + counter-based timeout (e.g., 30 s after door closure). IC Role / Device Role / Timing Role: Binary counter driven by a 1 Hz oscillator (Q0), with Q5 (32 s) and Q4 (16 s) feeding combinational logic for threshold selection. Use Value: Replaces microcontroller-based delays, lowering BOM cost and eliminating firmware dependencies in Class A safety functions. |
Use Scenario: Generating frame sync pulses for multi-camera fusion systems requiring exact 30 fps and 15 fps alignment across four camera channels. IC Role / Device Role / Timing Role: Master timing source producing Q12 (4096÷1) and Q13 (8192÷1) outputs to synchronize exposure start and readout strobes. Use Value: Ensures sub-microsecond inter-camera skew tolerance required for stereo depth computation and motion artifact suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 14-stage ripple counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC4020D-Q100 | CMOS input thresholds (VIH ≥ 3.15 V at VCC = 4.5 V); higher noise margin but requires CMOS-level drivers | Better suited for mixed-voltage systems with 3.3 V controllers driving 5 V peripherals | Select when interfacing with 3.3 V MCUs or FPGAs without level shifters and when lower ICC is critical |
| SN74LV4020DR | Lower VCC range (2.0–5.5 V); LV logic family with 3.3 V native compatibility and reduced propagation delay variation | Preferred in modern 3.3 V automotive domains (e.g., domain controllers) where supply headroom is limited | Choose for new designs targeting 3.3 V operation or tighter timing budgets; not AEC-Q100 Grade 1 qualified |
Compared with 74HC4020D-Q100 and SN74LV4020DR, the 74HCT4020D-Q100 uniquely balances TTL input compatibility, AEC-Q100 Grade 1 qualification, and SO16 footprint - making it the only option for retrofitting legacy 5 V automotive logic while maintaining full automotive reliability certification.
Availability
74HCT4020D-Q100 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera synchronization modules, body control delay circuits, and infotainment clock distribution systems requiring stable component supply across extended temperature ranges.
Supply support for 74HCT4020D-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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and discrete components, with core expertise in automotive-qualified products.
The 74HCT4020-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically for timing-critical functions in engine management, chassis control, and driver assistance systems where AEC-Q100 compliance and thermal robustness are mandatory.
FAQ
What is the maximum clock frequency supported by 74HCT4020D-Q100 at 125 °C?
At VCC = 4.5 V and Tamb = +125 °C, the maximum guaranteed clock frequency is 20 MHz, derived from the worst-case CP→Q0 propagation delay of 54 ns (1/54 ns ≈ 18.5 MHz), with design margin applied per Nexperia's recommended derating guidelines for automotive operation.
Can MR be held HIGH continuously to disable counting?
Yes - asserting MR HIGH forces all outputs (Q0, Q3–Q13) LOW and holds the counter in reset state indefinitely, regardless of CP activity. Counting resumes only after MR returns LOW and the next CP falling edge occurs.
Is there a functional difference between Q0 and other outputs like Q13 in terms of timing accuracy?
Yes - Q0 exhibits the shortest propagation delay (18–54 ns), while cumulative ripple delay increases per stage; Q13 adds ~13× the stage-to-stage delay (8–22 ns each), resulting in up to ~286 ns total skew from CP to Q13 at worst case - critical for synchronous capture of high-order bits.
Does the SO16 package (SOT109-1) support automated optical inspection (AOI)?
No - unlike the DHVQFN16 (SOT763-1) variant, the SO16 package lacks side-wettable flanks and is not optimized for AOI. Visual or X-ray inspection is recommended for solder joint verification in high-reliability automotive assembly.
74HCT4020D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 1
- Number of Bits per Element:
- 14
- Reset:
- Asynchronous
- Timing:
- -
- Count Rate:
- 47 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:
- 16-SO
74HCT4020D-Q100J FAQ
1.How can I place an order for 74HCT4020D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT4020D-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 74HCT4020D-Q100J reliable?
The price and inventory of 74HCT4020D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT4020D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT4020D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT4020D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT4020D-Q100J?
74HCT4020D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT4020D-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 74HCT4020D-Q100J?
For technical support, including 74HCT4020D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT4020D-Q100J requirements.
6.How does Aetrix verify that 74HCT4020D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT4020D-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 74HCT4020D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT4020D-Q100J?
All 74HCT4020D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT4020D-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 74HCT4020D-Q100J part is unused and in its original packaging.
Return procedure for 74HCT4020D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT4020D-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…
