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NXP Semiconductors 74HC366N,652
- Part No.:
- 74HC366N,652
- Manufacturer:
- NXP Semiconductors
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
74HC366N,652.pdf
- Description:
- IC BUFFER INVERT 6V 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,817
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Product details
Overview
74HC366N,652 from Nexperia is a hex inverting buffer/line driver with 3-state outputs, designed for bus interface and signal isolation in digital systems. It features dual active-low output enable inputs (OE1, OE2), operates from 2.0 V to 6.0 V, delivers propagation delay as low as 10 ns at VCC = 6.0 V, and supports industrial temperature range (–40 °C to +125 °C). It is commonly used in microcontroller peripheral expansion and address/data bus buffering.
For engineers reviewing the 74HC366N,652 datasheet, 74HC366N,652 pinout, 74HC366N,652 application, or 74HC366N,652 equivalent, key selection criteria include CMOS-level input compatibility, 3-state drive capability per channel, guaranteed high-impedance OFF-state under OE assertion, and SO16 package mechanical compatibility with legacy 74-series layouts.
Technical Context
The 74HC366N,652 implements six independent inverting buffers, each with open-drain-compatible 3-state output control via two shared enable inputs (OE1 and OE2). Its logic function follows a strict inverting transfer: when enabled, nY = NOT(nA); when either OE1 or OE2 is HIGH, all outputs enter high-impedance state. Input clamp diodes allow safe interfacing to voltages exceeding VCC using external current-limiting resistors.
It adheres to JEDEC JESD7A (2.0 V–6.0 V) and JESD8C (2.7 V–3.6 V) standards, supports HBM ESD >2000 V and CDM >1000 V, and exhibits latch-up immunity exceeding 100 mA per JESD78 Class II Level B. Static current consumption remains below 160 μA across full temperature range at VCC = 6.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 2.0 V to 6.0 V - Enables direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Propagation delay (nA→nY) | 10 ns typical at VCC = 6.0 V, CL = 50 pF - Supports reliable operation in 50 MHz+ digital buses. |
| Output drive strength | ±6.0 mA at VCC = 4.5 V - Sufficient to drive standard TTL loads and moderate PCB trace capacitance. |
| Input threshold (VIL/VIH) | VIL ≤ 0.5 V, VIH ≥ 4.2 V at VCC = 6.0 V - Provides robust noise margin (>1.7 V) in noisy industrial environments. |
| OFF-state leakage (IOZ) | ±10.0 μA max at VCC = 6.0 V, –40 °C to +125 °C - Ensures minimal bus contention during tri-state operation. |
| Operating temperature | –40 °C to +125 °C - Qualified for under-hood automotive modules and industrial motor control enclosures. |
| Power dissipation capacitance | 30 pF per buffer - Enables accurate dynamic power estimation in high-frequency switching applications. |
Pinout & Package
74HC366N,652 is supplied in SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 marked by index notch; pin 8 = GND, pin 16 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | OE1, OE2 | Active-low output enable inputs - Either HIGH forces all six outputs into high-impedance state; enables bus sharing between multiple drivers. |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Inverting data inputs - Each drives corresponding output with logical inversion; CMOS-compatible thresholds. |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | Inverting buffered outputs - Provide inverted, 3-state drive; capable of sinking or sourcing up to ±6 mA. |
| 8 | GND | Ground reference - Must be connected to system 0 V plane; decoupling capacitor recommended adjacent to pin. |
| 16 | VCC | Positive supply - Accepts 2.0–6.0 V; requires local 100 nF ceramic decoupling to minimize switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (2.0–6.0 V) | Eliminates need for separate voltage regulators when interfacing mixed-supply logic subsystems. |
| Input clamp diodes | Permits safe connection of inputs to signals exceeding VCC (e.g., 12 V sensor lines) using series current-limiting resistors. |
| High noise immunity | Guaranteed 40 % VCC noise margin at VCC = 4.5 V ensures reliable operation in electrically noisy factory-floor environments. |
| Latch-up immunity >100 mA | Meets stringent JEDEC Class II Level B - prevents destructive latch-up during transient overvoltage events. |
| –40 °C to +125 °C operation | Validated for extended temperature use in automotive engine control units and industrial PLC backplanes. |
Applications
| Microcontroller Bus Expansion | Industrial I/O Module |
|---|---|
Use Scenario: Expanding GPIO count on an ARM Cortex-M4 MCU to drive 12-bit ADC control lines and SPI slave select signals. IC Role / Device Role / Timing Role: Inverting buffer isolating MCU pins from higher-capacitance PCB traces and external peripherals; 3-state enables shared control bus. Use Value: Prevents signal degradation over 10 cm traces while allowing simultaneous access to multiple peripherals via OE-controlled bus arbitration. |
Use Scenario: Isolating PLC CPU outputs from 24 V DC field actuators using optocoupler input stages. IC Role / Device Role / Timing Role: Level-shifting and current-boosting interface between 3.3 V logic and 5 V optocoupler LED drivers; inverting logic matches common cathode configuration. Use Value: Delivers consistent 6 mA drive per channel at 5 V, ensuring fast optocoupler turn-on and noise-immune signal transmission across DIN-rail mounted modules. |
| Legacy System Emulation | Test Equipment Signal Conditioning |
Use Scenario: Replacing obsolete 74LS366 in retro-computing restoration project requiring TTL-compatible drive but modern power efficiency. IC Role / Device Role / Timing Role: Drop-in functional replacement with identical pinout and logic behavior; CMOS inputs reduce loading on vintage TTL bus drivers. Use Value: Cuts quiescent current from ~25 mA (LS) to <160 μA (HC), eliminating thermal issues in unventilated chassis while preserving timing compatibility. |
Use Scenario: Conditioning digital trigger signals from FPGA-based pattern generators before routing to high-voltage pulse amplifiers. IC Role / Device Role / Timing Role: Buffering and inverting low-voltage FPGA outputs; 3-state allows multiplexer-style signal routing via OE control. Use Value: Propagation delay variation <3 ns across channels ensures sub-10 ns skew between parallel trigger paths, critical for synchronized multi-channel test setups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT366D,118 | TTL-compatible inputs (VIH = 2.0 V min), same SO16 package and pinout | Better suited for mixed 5 V TTL/CMOS systems where input signals lack full CMOS swing | Select when interfacing with legacy 74LS or 74F logic families without level translation. |
| SN74HC366N | Identical electrical specs and pinout; manufactured by Texas Instruments, not Nexperia | No functional difference; TI's version has distinct lot traceability and RoHS documentation | Choose based on supply chain preference or qualification requirements for dual-sourcing. |
Compared with 74HC366N,652, the 74HCT366D,118 offers superior input compatibility with older TTL sources but sacrifices some noise margin, while SN74HC366N provides identical performance with alternate manufacturing provenance-both require no PCB changes but differ in sourcing governance and long-term availability planning.
Availability
74HC366N,652 is available at Aetrix Electronics and suitable for industrial automation, test equipment design, and embedded system bus expansion requiring stable component supply, long-lifecycle support, and SO16 footprint compatibility.
Supply support for 74HC366N,652 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 essential semiconductors for power management, logic, analog, and MOSFETs - delivering high-volume, high-reliability components for industrial and automotive markets.
The 74HC366N,652 belongs to Nexperia's 74HC logic family, engineered for low-power, high-noise-immunity digital interfacing in harsh environments - emphasizing robustness, wide supply tolerance, and long-term manufacturability.
FAQ
What is the maximum supply voltage rating for the 74HC366N,652?
The absolute maximum supply voltage (VCC) for the 74HC366N,652 is +7.0 V, but the recommended operating range is 2.0 V to 6.0 V. Operation above 6.0 V voids parametric guarantees and risks permanent damage. For sustained reliability, maintain VCC ≤ 6.0 V with proper decoupling, as specified in Nexperia's 74HC366N,652 datasheet Section 7 (Limiting Values).
Does the 74HC366N,652 support true bidirectional data flow?
No, the 74HC366N,652 is a unidirectional inverting buffer only - data flows strictly from inputs (1A–6A) to outputs (1Y–6Y) with inversion. It lacks internal direction control or bus transceiver architecture. Bidirectional operation requires external control logic and separate transmit/receive paths; the 74HC366N,652 itself does not implement auto-direction sensing or internal feedback loops.
Can both OE1 and OE2 be used independently to control different output groups?
No - OE1 and OE2 are OR-connected internally; asserting either HIGH disables all six outputs simultaneously. They are not independent per-channel enables. The 74HC366N,652 provides only global 3-state control across all buffers. Independent channel control would require discrete logic gates or a different device such as the 74HC244 (non-inverting) or custom ASIC implementation.
Is the 74HC366N,652 pin-compatible with the obsolete 74LS366?
Yes, the 74HC366N,652 shares identical pinout, function table, and SO16 package dimensions with the 74LS366, enabling direct replacement. However, it uses CMOS inputs (not TTL), so verify that driving sources meet HC-level VIH/VIL thresholds (e.g., VIH ≥ 3.15 V at VCC = 4.5 V), unlike LS's lower 2.0 V requirement - no layout change is needed, but logic-level compatibility must be confirmed.
What is the typical propagation delay variation between channels of the 74HC366N,652?
Within a single 74HC366N,652 unit, propagation delay variation (skew) between any two channels is typically ≤ 3 ns under matched load conditions (CL = 50 pF, VCC = 4.5 V, Tamb = 25 °C), as inferred from worst-case tpd spread in Table 8 and confirmed by Nexperia's characterization data. This low skew supports synchronous multi-line buffering in timing-critical applications like parallel bus interfaces.
74HC366N,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 6
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
74HC366N,652 FAQ
1.How can I place an order for 74HC366N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC366N,652 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 74HC366N,652 reliable?
The price and inventory of 74HC366N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC366N,652 is usually 5 days.
3.What payment methods are accepted for 74HC366N,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC366N,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC366N,652?
74HC366N,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC366N,652 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 74HC366N,652?
For technical support, including 74HC366N,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC366N,652 requirements.
6.How does Aetrix verify that 74HC366N,652 is sourced from the original manufacturer or authorized distributors?
All 74HC366N,652 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 74HC366N,652 meets industry standards.
7.What is the process for return or replacement of 74HC366N,652?
All 74HC366N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC366N,652, 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 74HC366N,652 part is unused and in its original packaging.
Return procedure for 74HC366N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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