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Nexperia USA Inc. 74HC390PW,118
- Part No.:
- 74HC390PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC390PW,118.pdf
- Description:
- IC DECADE COUNT DL 4BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,649
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Product details
Overview
74HC390PW,118 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), and HIGH-to-LOW edge-triggered clocks (1CP0/1CP1/2CP0/2CP1); operates at 4.5 V to 5.5 V supply, supports frequency division by 2, 4, 5, 10, 20, 25, 50 or 100, and is rated for -40 °C to +125 °C industrial temperature range.
For engineers reviewing the 74HC390PW,118 datasheet, 74HC390PW,118 pinout, 74HC390PW,118 application, or 74HC390PW,118 equivalent, this device serves as a TTL-compatible, low-power CMOS logic counter for precise clock division, digital timing control, and decade counting in embedded instrumentation, industrial control panels, and legacy interface circuitry where discrete ripple counter functionality is required.
Technical Context
The 74HC390PW,118 implements two independent 4-bit asynchronous ripple counters, each partitioned into cascaded divide-by-2 and divide-by-5 stages-enabling BCD (nQ0→nCP1) or bi-quinary (nQ3→nCP0) decade configurations. Each section features dedicated clock inputs and shared asynchronous master reset (active HIGH), allowing individual or simultaneous clearing of both decades.
It uses standard CMOS logic with TTL-level input thresholds (for 74HCT variant compatibility), clamp diodes on all inputs for overvoltage tolerance, and exhibits propagation delays as low as 14 ns (VCC = 6.0 V, CL = 50 pF). Maximum operating frequency reaches 27 MHz at VCC = 4.5 V with 50 pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation in standard 5 V logic systems with ±5 % tolerance. |
| Operating Temperature | -40 °C to +125 °C - Qualified for extended industrial environments including motor control and power supply monitoring. |
| Max Clock Frequency | 27 MHz at VCC = 4.5 V, CL = 50 pF - Supports high-speed decade counting in real-time event logging and pulse conditioning. |
| Propagation Delay | 17 ns (1CP0 → 1Q0, VCC = 4.5 V) - Enables tight timing margins in synchronous cascade chains. |
| Input Thresholds | VIH = 3.15 V, VIL = 1.35 V (VCC = 4.5 V) - Guarantees reliable interfacing with TTL and 5 V CMOS outputs without level shifters. |
| Power Dissipation | CPD = 20 pF - Allows accurate dynamic power estimation (PD = CPD × VCC² × fi × N) for thermal design in dense PCB layouts. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Provides robust handling during board assembly and field service in non-ESD-controlled settings. |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, body width 4.4 mm, lead pitch 0.65 mm, designed for high-density surface-mount applications with improved thermal performance over SO16.
| 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 in respective decade section. |
| 2, 14 (1MR, 2MR) | Asynchronous master reset | Active HIGH; forces all four outputs (Q0–Q3) LOW regardless of clock state-critical for deterministic startup. |
| 3, 5, 6, 7 (1Q0–1Q3) | First decade outputs | Binary-coded outputs representing 0–9 count; used for BCD display drivers or feedback to second stage. |
| 4, 12 (1CP1, 2CP1) | Divide-by-5 clock input | HIGH-to-LOW edge-triggered; advances Q1–Q3 when driven by Q0 (BCD) or Q3 (bi-quinary). |
| 8 | GND | Logic ground reference; must be low-impedance connection to minimize noise coupling into ripple chain. |
| 9–13 (2Q3–2Q0) | Second decade outputs | Independent 4-bit binary outputs; enables dual-decade cascading (e.g., 0–99 counting) without external logic. |
| 16 | VCC | Positive supply rail; decoupling capacitor (100 nF) required within 5 mm for stable ripple counter operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decade counters | Two fully isolated 4-bit ripple counters in one TSSOP16 package-reduces board space vs. discrete 74HC90 implementations. |
| Configurable BCD/bi-quinary mode | Internal routing (Q0→CP1 or Q3→CP0) enables either decimal encoding standard, supporting legacy metering and display systems. |
| Asynchronous master reset per section | 1MR and 2MR allow selective zeroing of first or second decade-essential for programmable interval timers and multi-stage sequencers. |
| TTL-compatible input thresholds | 74HCT390 variant accepts standard 5 V TTL logic levels; 74HC390PW,118 maintains CMOS noise immunity while interfacing with older controllers. |
| High noise immunity & latch-up robustness | Exceeds JESD78 Class II Level B (>100 mA latch-up immunity) - ensures reliability in electrically noisy factory automation environments. |
Applications
| Industrial Counter Modules | Digital Panel Meters |
|---|---|
Use Scenario: Counting encoder pulses from conveyor belt motors in PLC-based packaging lines. IC Role / Device Role / Timing Role: Primary decade counter converting quadrature signals into BCD values for HMI display and batch control logic. Use Value: Dual-section architecture allows simultaneous 0–9 and 0–99 counting with single-device synchronization, eliminating inter-chip skew. |
Use Scenario: Driving 7-segment LED displays in benchtop multimeters and process monitors. IC Role / Device Role / Timing Role: BCD-formatted output source feeding BCD-to-7-segment decoders (e.g., 74HC4511) for direct numeric readout. Use Value: Guaranteed VIH/VIL margins ensure clean signal transfer across long PCB traces to display drivers under varying supply conditions. |
| Legacy Bus Timing Generators | Test Equipment Clock Dividers |
Use Scenario: Generating sub-multiple clock domains for ISA-bus peripheral timing in retro-computing restoration projects. IC Role / Device Role / Timing Role: Bi-quinary configuration provides stable 1:5 and 1:2 divisions to derive 2.5 MHz and 5 MHz timing references from 10 MHz crystal oscillator. Use Value: Asynchronous reset enables deterministic phase alignment across multiple bus timing domains during system boot. |
Use Scenario: Programmable frequency division in automated test fixtures for validating microcontroller clock tree behavior. IC Role / Device Role / Timing Role: Cascadable ripple counter providing precise 1/10, 1/100, or 1/1000 clock scaling without PLL jitter or software overhead. Use Value: Propagation delay consistency (±5 ns over temperature) ensures repeatable timing margin validation across production units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar decade counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC393PW,118 | Dual 4-bit binary counter (not decade); no built-in divide-by-5 logic or BCD output capability. | Suitable only for power-of-two division (÷2, ÷4, ÷8…); requires external gating for decimal counting. | Select when binary counting suffices and higher max frequency (60 MHz) is needed; avoid for BCD display or metering. |
| CD4017BE | Single-stage Johnson decade counter with decoded decimal outputs (1-of-10); no dual-section or bi-quinary mode. | Provides active-HIGH decoded outputs per digit (Q0–Q9); lacks ripple-cascadable binary outputs for multi-digit chaining. | Prefer for simple sequential activation (e.g., LED chasers); not suitable for cascaded multi-digit counters or BCD arithmetic. |
Compared with 74HC390PW,118, the 74HC393PW,118 offers faster binary counting but no native decade support, while CD4017BE delivers decoded digits without binary output flexibility-making the 74HC390PW,118 uniquely suited for scalable, cascadable BCD/bi-quinary timing in industrial instrumentation.
Availability
74HC390PW,118 is available at Aetrix Electronics and suitable for industrial counter modules, digital panel meters, legacy bus timing generators, and test equipment clock dividers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 74HC390PW,118 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 logic, analog, and MOSFET solutions with emphasis on reliability, efficiency, and manufacturability for industrial and automotive markets.
The 74HC390PW,118 belongs to Nexperia's 74HC logic family, engineered for low-power, high-noise-immunity digital counting and timing functions in harsh industrial environments where deterministic ripple counter behavior is critical.
FAQ
What is the difference between 74HC390PW,118 and 74HCT390PW,118?
The 74HC390PW,118 uses standard CMOS input thresholds (VIH ≈ 0.7×VCC), while the 74HCT390PW,118 features TTL-compatible inputs (VIH = 2.0 V min at VCC = 4.5 V), enabling direct interfacing with legacy 5 V TTL outputs without level shifters. Both share identical pinout, package, and functional logic.
Can 74HC390PW,118 operate at 3.3 V supply?
No-74HC390PW,118 is specified only for 4.5 V to 5.5 V operation per JEDEC JESD7A. At 3.3 V, input thresholds become unreliable and propagation delays increase significantly; use 74LVC390 or similar 3.3 V logic family for lower-voltage designs.
How do I configure the 74HC390PW,118 for bi-quinary counting?
Connect output 1Q3 (pin 7) to input 1CP0 (pin 1), apply clock to 1CP1 (pin 4), and use 1Q0 (pin 3) as the decade output. This routes the counter through 0→1→2→3→4→5→6→7→8→9 using bi-quinary encoding, verified in Table 4 of the datasheet.
Is the 74HC390PW,118 pin-compatible with SO16-packaged 74HC390D?
Yes-both 74HC390PW,118 (TSSOP16/SOT403-1) and 74HC390D (SO16/SOT109-1) share identical pin numbering, function mapping, and electrical specifications; only the physical package differs, requiring footprint adaptation but no schematic change.
74HC390PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm 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-TSSOP
74HC390PW,118 FAQ
1.How can I place an order for 74HC390PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC390PW,118 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 74HC390PW,118 reliable?
The price and inventory of 74HC390PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC390PW,118 is usually 5 days.
3.What payment methods are accepted for 74HC390PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC390PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC390PW,118?
74HC390PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC390PW,118 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 74HC390PW,118?
For technical support, including 74HC390PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC390PW,118 requirements.
6.How does Aetrix verify that 74HC390PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HC390PW,118 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 74HC390PW,118 meets industry standards.
7.What is the process for return or replacement of 74HC390PW,118?
All 74HC390PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC390PW,118, 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 74HC390PW,118 part is unused and in its original packaging.
Return procedure for 74HC390PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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