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Nexperia USA Inc. 74HC390D,653
- Part No.:
- 74HC390D,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC390D,653.pdf
- Description:
- IC DECADE COUNTER DL 4BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:36,451
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Product details
Overview
74HC390D,653 from Nexperia is a dual 4-bit decade ripple counter IC comprising two independent BCD/bi-quinary counters, each with separate divide-by-2 and divide-by-5 sections, asynchronous master reset inputs (1MR, 2MR), HIGH-to-LOW edge-triggered clocks (1CP0/1CP1, 2CP0/2CP1), and operation across -40 °C to +125 °C at 4.5–5.5 V supply - used in frequency division, digital clocking, and metering systems.
For engineers reviewing the 74HC390D,653 datasheet, 74HC390D,653 pinout, 74HC390D,653 application, or 74HC390D,653 equivalent, this page delivers verified functional architecture, SO16 pin mapping, BCD/bi-quinary configuration details, propagation delays (e.g., 17 ns @ 4.5 V), and real-world timing role definitions for embedded counter design and legacy TTL/CMOS interface validation.
Technical Context
The device implements two independent ripple-counting chains: each chain combines a divide-by-2 stage (Q0 output) cascaded into a divide-by-5 stage (Q1–Q3 outputs), enabling configurable BCD (nQ0→nCP1) or bi-quinary (nQ3→nCP0) decade counting. Clocks are asynchronous and edge-triggered on HIGH-to-LOW transitions.
All eight flip-flops share no internal synchronization; propagation delay accumulates across stages (e.g., nCP1→nQ3 = 42 ns max @ 4.5 V, CL = 50 pF), and both master resets (1MR, 2MR) override clocks asynchronously to force all four outputs LOW per counter section.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual decade ripple counter with independent BCD/bi-quinary configuration capability |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with 5 V TTL and CMOS logic families |
| Operating Temperature | -40 °C to +125 °C - supports industrial and extended-temperature applications |
| Propagation Delay | 17 ns (typ) from CP0 to Q0 @ 4.5 V - defines maximum reliable clock rate for first-stage counting |
| Max Clock Frequency | 55 MHz (min) @ 4.5 V - sets upper limit for single-stage operation before ripple accumulation limits speed |
| Input Threshold | CMOS-level inputs - VIH = 3.15 V, VIL = 1.35 V @ 4.5 V - enables direct interfacing with 5 V CMOS outputs |
| Output Drive | ±4.0 mA @ VCC = 4.5 V - sufficient to drive standard TTL loads or multiple CMOS inputs without buffering |
Pinout & Package
74HC390D,653 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and standard 1.27 mm lead pitch - suitable for automated PCB assembly and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 (1CP0, 2CP0) | Divide-by-2 clock input | HIGH-to-LOW edge-triggered; initiates toggle of Q0 output per counter section |
| 2, 14 (1MR, 2MR) | Asynchronous master reset | Active HIGH; forces all four outputs (Q0–Q3) LOW regardless of clock state |
| 3, 5, 6, 7 (1Q0–1Q3) | First counter outputs | BCD-coded bits (Q0 LSB, Q3 MSB) or bi-quinary outputs depending on external feedback |
| 4, 12 (1CP1, 2CP1) | Divide-by-5 clock input | HIGH-to-LOW edge-triggered; advances Q1–Q3 when driven by Q0 or Q3 feedback |
| 8 | GND | Reference ground for all logic and power domains |
| 9–11, 13 (2Q0–2Q3) | Second counter outputs | Independent set of decade outputs; electrically isolated from first counter's outputs |
| 16 | VCC | +4.5 V to +5.5 V supply rail; powers both counter sections and internal logic |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decade counters | Enables simultaneous 2-digit counting or split timing functions without external gating |
| Configurable BCD or bi-quinary mode | Supports legacy metering standards (e.g., electromechanical odometers) and modern digital displays |
| Asynchronous master reset per section | Allows selective clearing of either decade without disturbing the other - critical for multi-digit error recovery |
| CMOS-level input thresholds | Ensures noise-immune operation with 5 V microcontroller GPIOs and avoids level-shifter requirements |
| High noise immunity & latch-up protection | Exceeds JESD78 Class II Level B (100 mA), enabling robust operation in electrically noisy industrial environments |
Applications
| Electronic Energy Metering | Digital Panel Meters |
|---|---|
Use Scenario: Counting kilowatt-hour pulses from utility meter sensors to drive 7-segment LED displays. IC Role / Device Role / Timing Role: Primary decade counter implementing BCD output for direct segment decoder interface; uses nQ0→nCP1 feedback for modulo-10 cycling. Use Value: Eliminates need for discrete flip-flop arrays; reduces BOM count and PCB area while maintaining traceable pulse-to-digit accuracy. | Use Scenario: Converting analog sensor outputs (via ADC) into decimal readouts for industrial process monitoring. IC Role / Device Role / Timing Role: Synchronizing digit updates across multiple display positions using shared clock domain and independent reset control. Use Value: Enables stable multi-digit display update without ghosting or race conditions due to ripple-chain isolation between counters. |
| Legacy Industrial Control Panels | Frequency Division in Test Equipment |
Use Scenario: Replacing obsolete discrete counter modules in aging PLC I/O racks requiring TTL-compatible decade outputs. IC Role / Device Role / Timing Role: Bi-quinary mode implementation (nQ3→nCP0) to match original hardware timing signatures and firmware expectations. Use Value: Provides drop-in replacement functionality with identical pinout and electrical behavior - minimizing redesign effort and qualification time. | Use Scenario: Generating precise sub-harmonics (e.g., 1 MHz → 10 kHz) for signal generator calibration and oscilloscope trigger circuits. IC Role / Device Role / Timing Role: Cascaded divide-by-10 configuration (CP0→Q0→CP1→Q1–Q3) delivering deterministic 100× frequency reduction. Use Value: Achieves exact integer division ratios without PLL jitter or software overhead - essential for metrology-grade reference signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar decade counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT390D,653 | TTL-compatible inputs (VIH = 2.0 V min); identical pinout and function | Better interoperability with legacy 5 V TTL logic families; slightly higher ICC | Select when interfacing directly with 74LS/74ALS series or microcontrollers lacking CMOS-level output swing |
| SN74LS390N | Bipolar TTL technology; 4.75–5.25 V supply; slower (30 ns typical propagation) | Higher power consumption (25 mA typical ICC); limited temperature range (-25 °C to +70 °C) | Choose only for strict pin- and waveform-compatible replacement in legacy designs where CMOS leakage or extended temp is not required |
Compared with 74HC390D,653, the 74HCT390D,653 offers superior TTL interface margin without sacrificing speed or package compatibility, while the SN74LS390N trades power efficiency and temperature resilience for guaranteed legacy waveform fidelity in vintage systems.
Availability
74HC390D,653 is available at Aetrix Electronics and suitable for electronic energy metering, digital panel meters, legacy industrial control panels, and frequency division in test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC390D,653 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 high-volume, high-reliability logic, analog, and MOSFET solutions - delivering automotive-qualified and industrial-grade components with rigorous quality control and long-term supply commitment.
The 74HC390D,653 belongs to Nexperia's HC logic family, engineered for low-power, high-noise-immunity 5 V digital systems where predictable ripple-counter timing and robust ESD performance (HBM >2000 V) are essential.
FAQ
What is the difference between BCD and bi-quinary modes on the 74HC390D,653?
BCD mode connects nQ0 to nCP1 to generate standard binary-coded decimal outputs (0–9), while bi-quinary mode connects nQ3 to nCP0 to produce a 2-out-of-5 code (00001, 00010, ..., 10000) plus a quinary bit - used in legacy electromechanical counters and certain display drivers requiring fault-detection redundancy.
Can the two counters operate independently with different clock sources?
Yes - 1CP0/1CP1 and 2CP0/2CP1 are fully isolated clock inputs, allowing independent clocking of each decade section. Each section also has its own master reset (1MR, 2MR), enabling true concurrent but asynchronous counting operations without electrical or timing crosstalk.
What is the minimum pulse width required on the master reset inputs?
The minimum nMR pulse width is 15 ns (typ) at VCC = 4.5 V - verified under recommended operating conditions. This ensures reliable asynchronous reset assertion across the full -40 °C to +125 °C temperature range and accounts for internal gate propagation delays within the reset path.
Does the 74HC390D,653 support 3.3 V operation?
No - the 74HC390D,653 is specified only for 4.5 V to 5.5 V operation per JEDEC JESD7A. Its CMOS input thresholds and output drive characteristics are optimized for 5 V systems; use 74LVC390 or similar for 3.3 V compatibility.
74HC390D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Counter, Decade
- Direction:
- Up
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Reset:
- Asynchronous
- Timing:
- -
- Count Rate:
- 71 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 2 V ~ 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC390D,653 FAQ
1.How can I place an order for 74HC390D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC390D,653 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 74HC390D,653 reliable?
The price and inventory of 74HC390D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC390D,653 is usually 5 days.
3.What payment methods are accepted for 74HC390D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC390D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC390D,653?
74HC390D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC390D,653 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 74HC390D,653?
For technical support, including 74HC390D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC390D,653 requirements.
6.How does Aetrix verify that 74HC390D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC390D,653 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 74HC390D,653 meets industry standards.
7.What is the process for return or replacement of 74HC390D,653?
All 74HC390D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC390D,653, 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 74HC390D,653 part is unused and in its original packaging.
Return procedure for 74HC390D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC390D,653 Tags
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74HC393BQ,115
Nexperia USA Inc.
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SN74LV8154PWR
Texas Instruments
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MC14516BDR2G
onsemi
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MC14020BDR2G
onsemi
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onsemi
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onsemi
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MC100EP016AFAG
onsemi
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SN74LV163ADR
Texas Instruments
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SN74LV163APWR
Texas Instruments
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SN74HC393DR
Texas Instruments
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