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Nexperia USA Inc. 74LV393D,118
- Part No.:
- 74LV393D,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74LV393D,118.pdf
- Description:
- IC BINARY COUNTER DL 4BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,731
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Product details
Overview
74LV393D,118 from Nexperia is a dual 4-bit binary ripple counter IC with asynchronous master reset per counter, operating from 1.0 V to 3.6 V supply, featuring HIGH-to-LOW clock edge triggering, 14-pin SO14 package (SOT108-1), and -40 °C to +125 °C temperature range - used in digital timing, frequency division, and event counting circuits in industrial control and instrumentation.
For engineers reviewing the 74LV393D,118 datasheet, 74LV393D,118 pinout, 74LV393D,118 application, or 74LV393D,118 equivalent, this page delivers verified functional architecture, real-world propagation delays (e.g., 14 ns typical tpd at 3.3 V), static input/output thresholds, and precise pin-level circuit roles - critical for synchronous logic design, clock domain partitioning, and low-voltage counter cascading.
Technical Context
The 74LV393D implements two independent 4-stage ripple counters, each driven by separate clock inputs (1CP, 2CP) and cleared by dedicated asynchronous master resets (1MR, 2MR). Count advances on HIGH-to-LOW transitions; outputs (1Q0–1Q3, 2Q0–2Q3) are buffered CMOS with TTL-compatible input thresholds at VCC ≥ 2.7 V.
It uses cascaded T-type flip-flops without internal carry lookahead, resulting in cumulative propagation delay across stages (e.g., 5 ns typical nQ0→nQ1 at 3.3 V). Input clamp diodes enable safe interfacing to voltages exceeding VCC when current-limiting resistors are applied.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 3.6 V - enables direct integration into 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level translation. |
| Max Clock Frequency | 90 MHz typical at VCC = 3.3 V, CL = 15 pF - supports high-speed divide-by-16 (2⁴) timing generation in compact logic systems. |
| Propagation Delay (nCP → nQ0) | 14 ns typical at VCC = 3.3 V - defines minimum clock period for reliable single-counter operation. |
| Input Thresholds (VIH/VIL) | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 3.3 V - ensures robust noise margin and compatibility with standard TTL outputs. |
| Output Drive (VOH/VOL) | VOH = 2.4 V min, VOL = 0.4 V max at IO = ±6 mA - guarantees clean logic levels driving 10+ 74LVC inputs or moderate capacitive loads. |
| Power Dissipation Capacitance | CPD = 23 pF - used to calculate dynamic power: PD = CPD × VCC² × fi × N, essential for thermal budgeting in dense PCB layouts. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class 2/C3, supporting handling in non-ESD-controlled assembly environments. |
Pinout & Package
74LV393D,118 is housed in a plastic small outline package (SO14), SOT108-1, with 14 leads, 3.9 mm body width, and standard 1.27 mm lead pitch - compatible with automated pick-and-place and reflow soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 13 | 1CP, 2CP | Independent clock inputs; edge-triggered on HIGH-to-LOW transition - allows separate timing domains or cascaded counting. |
| 2, 12 | 1MR, 2MR | Asynchronous master reset (active HIGH); forces all Q outputs LOW regardless of clock state - enables immediate counter reset without waiting for clock edge. |
| 3–6 | 1Q0–1Q3 | Buffered 4-bit binary output of first counter (LSB to MSB); Q0 toggles on every clock, Q3 toggles every 16th clock - provides full modulo-16 count state. |
| 8–11 | 2Q0–2Q2, 2Q3 | Buffered 4-bit binary output of second counter; pin order is 2Q0 (pin 11), 2Q1 (pin 10), 2Q2 (pin 9), 2Q3 (pin 8) - supports parallel readout or inter-counter chaining. |
| 7 | GND | Ground reference (0 V) for all internal logic and I/O - must be low-impedance connection to minimize ground bounce (VOLP = 0.8 V typical). |
| 14 | VCC | Positive supply rail; decoupling capacitor (100 nF ceramic) required within 5 mm for stable operation at >10 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit counters | Enables simultaneous divide-by-N operations (e.g., 12 and 16) or cascaded 8-bit counting without external logic. |
| Low-voltage operation (1.0 V to 3.6 V) | Eliminates need for voltage translators in mixed-supply systems and reduces dynamic power by ~50% vs. 5 V TTL equivalents. |
| Asynchronous master reset per counter | Permits selective reset of one counter while the other continues counting - critical for multi-phase timing sequencers. |
| TTL-input compatibility at VCC ≥ 2.7 V | Accepts standard 5 V TTL outputs directly (with current-limiting resistor), simplifying interface to legacy controllers or FPGAs with 3.3 V I/O banks. |
| Clamp diode-equipped inputs | Allows safe connection to signals up to VCC + 0.5 V, enabling partial-power-down mode interoperability or fault-tolerant input conditioning. |
Applications
| Industrial Timer Module | Digital Event Counter |
|---|---|
|
Use Scenario: A programmable timer in PLC I/O modules requiring precise 1 s, 10 s, and 60 s intervals derived from a 1 kHz system clock. IC Role / Device Role / Timing Role: Each 4-bit counter divides clock by powers of two; cascaded counters generate exact time bases via binary weighting (e.g., 2¹⁰ = 1024 ≈ 1 s). Use Value: Eliminates external crystal oscillators or microcontroller-based timing, reducing BOM cost and firmware complexity while maintaining ±0.1% accuracy over temperature. |
Use Scenario: Production line part counter tracking units passing a photoelectric sensor, with reset triggered by batch completion signal. IC Role / Device Role / Timing Role: 74LV393D accepts sensor pulses as 1CP; 1MR resets counter upon batch signal - no software polling or interrupt latency. Use Value: Delivers deterministic, jitter-free counting up to 90 MHz input rate, immune to CPU load or RTOS scheduling delays. |
| Frequency Divider Bank | Logic Analyzer Trigger Sequencer |
|
Use Scenario: FPGA clock domain bridging where a 100 MHz reference must be divided into 12.5 MHz, 6.25 MHz, and 3.125 MHz clocks for peripheral interfaces. IC Role / Device Role / Timing Role: Two counters operate in parallel: one divides by 8 (100 → 12.5 MHz), another by 32 (100 → 3.125 MHz), using independent clocks and resets. Use Value: Provides glitch-free, phase-aligned divided clocks without PLL lock time or configuration overhead - ideal for deterministic test equipment clocks. |
Use Scenario: Hardware trigger generator in portable logic analyzers that captures data after detecting a specific 4-bit pattern across 4 signal lines. IC Role / Device Role / Timing Role: One counter tracks consecutive matching samples; its 4-bit output feeds a comparator to detect pattern match and assert trigger pulse. Use Value: Enables sub-microsecond trigger response with zero software latency, supporting real-time capture of burst communication protocols like SPI or UART. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual binary counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LV393AIPWRE4 | TI version; identical pinout and logic function but higher ICC max (50 μA vs. 160 μA at VCC = 3.6 V) and tighter VOH min (2.45 V). | Preferred in battery-powered designs requiring ultra-low quiescent current; not rated for -40 °C to +125 °C full range. | Select if operating ambient stays ≤ +85 °C and supply current < 20 μA is mandatory; verify reset timing margins due to different internal gate delays. |
| 74HC393PW,118 | Nexperia HC variant; same pinout but 2 V to 6 V supply range, slower max speed (30 MHz at 4.5 V), and no TTL input compatibility below 4.5 V. | Suitable for legacy 5 V systems; unsuitable for 1.8 V or 2.5 V domains where LV series excels. | Choose only for backward compatibility with existing 5 V designs; avoid in new low-voltage designs due to higher VCC requirements and reduced noise immunity. |
Compared with SN74LV393AIPWRE4, the 74LV393D,118 offers broader temperature support and higher ESD tolerance, while 74HC393PW,118 trades speed and voltage flexibility for 5 V legacy compatibility - making the LV393D optimal for modern industrial embedded systems needing wide-VCC, high-temp, and low-power operation.
Availability
74LV393D,118 is available at Aetrix Electronics and suitable for industrial timer modules, digital event counters, frequency divider banks, and logic analyzer trigger sequencers requiring stable component supply across extended temperature ranges and low-voltage operation.
Supply support for 74LV393D,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 focused on high-volume, high-reliability logic, analog, and discrete components - delivering energy-efficient, automotive-qualified, and industrial-grade devices with rigorous AEC-Q200 and IATF 16949 compliance.
The 74LV393D belongs to Nexperia's Low-Voltage Logic (LV) family, engineered specifically for robust operation in 1.0 V–3.6 V mixed-signal systems where power efficiency, noise immunity, and wide temperature stability are critical - targeting industrial automation, test equipment, and IoT edge nodes.
FAQ
Can 74LV393D,118 be used with a 5 V microcontroller output driving its clock input?
Yes, but only with a current-limiting resistor (≥1 kΩ) due to built-in input clamp diodes. At VCC = 3.3 V, the diode conducts when VI exceeds VCC + 0.5 V, limiting input current to ±20 mA per pin. Direct 5 V connection without resistance risks latch-up or permanent damage per Absolute Maximum Ratings.
What is the maximum allowable clock skew between 1CP and 2CP for synchronized operation?
No specification defines inter-clock skew tolerance because the counters are fully independent. However, for deterministic cascading (e.g., using 1Q3 as 2CP), propagation delay from 1Q3 to 2CP must exceed tPHL(1Q3) + tW(2CP) = 12 ns + 7 ns = 19 ns minimum at VCC = 3.3 V to prevent metastability or missed edges.
Does 74LV393D,118 support synchronous reset?
No - it provides only asynchronous master reset (1MR, 2MR), active HIGH and independent per counter. Reset occurs immediately upon assertion, overriding clock state. Synchronous reset requires external gating logic (e.g., ANDing MR with CP) or a different device such as 74LV163.
How does output ground bounce (VOLP) affect signal integrity in high-speed counting?
VOLP = 0.8 V typical at VCC = 3.3 V means transient ground rise during simultaneous output switching can reduce effective noise margin by up to 24%. To mitigate, use local 100 nF decoupling, minimize shared GND traces, and avoid routing sensitive analog signals near the SO14 GND pin (pin 7).
74LV393D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LV
- 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:
- 20 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 1 V ~ 3.6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74LV393D,118 FAQ
1.How can I place an order for 74LV393D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV393D,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 74LV393D,118 reliable?
The price and inventory of 74LV393D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV393D,118 is usually 5 days.
3.What payment methods are accepted for 74LV393D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV393D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV393D,118?
74LV393D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV393D,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 74LV393D,118?
For technical support, including 74LV393D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV393D,118 requirements.
6.How does Aetrix verify that 74LV393D,118 is sourced from the original manufacturer or authorized distributors?
All 74LV393D,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 74LV393D,118 meets industry standards.
7.What is the process for return or replacement of 74LV393D,118?
All 74LV393D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV393D,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 74LV393D,118 part is unused and in its original packaging.
Return procedure for 74LV393D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LV393D,118 Tags
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74HC393BQ,115
Nexperia USA Inc.
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