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Nexperia USA Inc. 74HCT366PW,118
- Part No.:
- 74HCT366PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT366PW,118.pdf
- Description:
- IC BUFFER INVERT 5.5V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,125
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Product details
Overview
74HCT366PW,118 from Nexperia is a hex inverting 3-state buffer/line driver with TTL-compatible inputs, 16-pin TSSOP package, -40 °C to +125 °C operating range, and dual active-low output enable (OE1/OE2) control. It drives high-capacitance buses in industrial I/O expansion, legacy parallel interface buffering, and microcontroller peripheral isolation where level-shifting and bus contention prevention are required.
For engineers reviewing the 74HCT366PW,118 datasheet, 74HCT366PW,118 pinout, 74HCT366PW,118 application, or 74HCT366PW,118 equivalent, key selection criteria include TTL-level input compatibility, 3-state timing (enable/disable delays ≤53 ns at VCC = 4.5 V), guaranteed high-impedance OFF-state leakage (<±10 µA), and operation across extended temperature with 4.5–5.5 V supply.
Technical Context
The 74HCT366PW,118 implements six independent inverting buffers, each with separate input (nA) and output (nY), controlled by two shared active-low output enables (OE1 on pin 1, OE2 on pin 15). Its TTL-input threshold (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensures direct interfacing with 5 V logic families without level shifters.
Each buffer delivers rail-to-rail CMOS outputs with VOH ≥ 3.7 V and VOL ≤ 0.4 V under 6 mA load at VCC = 4.5 V and TAMB = +125 °C, while maintaining low ICC (≤160 µA) and high noise immunity (HBM ESD >2000 V). The device uses standard IEC 60617 logic symbols and complies with JEDEC JESD7A and JESD8C standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverting buffer with 3-state outputs; enables bus sharing via OE-controlled high-Z state |
| Supply Voltage | 4.5 V to 5.5 V - matches standard 5 V TTL/CMOS systems; no external regulation needed |
| Input Compatibility | TTL-level - accepts 0.8 V/2.0 V thresholds; interoperable with 74LS, 74F, and microcontroller GPIOs |
| Propagation Delay | ≤36 ns (max, TA = −40 to +125 °C, VCC = 4.5 V) - supports ≤15 MHz bus toggle rates |
| Enable/Disable Time | ≤53 ns (max, TA = −40 to +125 °C, VCC = 4.5 V) - ensures clean bus arbitration during state transitions |
| Output Drive | ±6 mA (IOH/IOL) at VCC = 4.5 V - sufficient for driving 10 LSTTL loads or 50 pF traces |
| OFF-State Leakage | ±10 µA max (IOZ, TA = −40 to +125 °C) - prevents unintended current paths in powered-down subsystems |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; 0.65 mm pitch; exposed pad not present; RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | OE1, OE2 | Active-low output enable inputs; both must be LOW to activate all six outputs |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Inverting data inputs; each drives corresponding nY output with polarity inversion |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | Inverting 3-state outputs; HIGH-Z when either OE1 or OE2 is HIGH |
| 8 | GND | Ground reference (0 V); return path for all internal logic and output currents |
| 16 | VCC | Positive supply (4.5–5.5 V); powers all six buffers and enable logic |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates need for external level translators |
| Extended temperature range | −40 °C to +125 °C - qualified for industrial control, motor drives, and power supply monitoring |
| Low dynamic power | CPD = 30 pF per buffer - enables <1 mW typical dynamic dissipation at 1 MHz switching |
| High ESD robustness | HBM >2000 V, CDM >1000 V - withstands handling and board-level electrostatic events |
| Bus-friendly 3-state control | Dual OE inputs (OE1/OE2) - allows partitioned bus control or redundancy for fault-tolerant designs |
Applications
| Industrial I/O Expansion | Legacy Parallel Interface Buffering |
|---|---|
|
Use Scenario: Isolating microcontroller GPIO banks from noisy 24 V PLC backplanes using optocoupler-driven address/data latches. IC Role / Device Role / Timing Role: Inverting 3-state buffer providing direction-controlled data path between MCU and latch ICs; OE lines synchronized to clock edges to prevent bus glitches. Use Value: Prevents signal contention during multi-master handshaking; VIH/VIL margins tolerate ±10 % VCC ripple common in industrial supplies. |
Use Scenario: Driving Centronics-style printer port signals (STROBE, ACK, BUSY) from an FPGA with limited drive strength. IC Role / Device Role / Timing Role: Level-shifting and fanout buffer for bidirectional parallel bus; OE pins tied to FPGA control logic for precise tristate timing. Use Value: Delivers 6 mA per line to meet IEEE 1284 sink requirements; propagation delay <36 ns ensures setup/hold compliance at 1 MHz transfer rates. |
| Microcontroller Peripheral Isolation | Memory Address Bus Driver |
|
Use Scenario: Shielding an ARM Cortex-M4's GPIOs from EMI-coupled sensor interface lines in automotive cabin controllers. IC Role / Device Role / Timing Role: Unidirectional inverting buffer isolating analog front-end control lines; OE grounded to keep outputs always active. Use Value: Input clamp diodes allow use of series current-limiting resistors for overvoltage protection up to VCC + 0.5 V. |
Use Scenario: Strengthening 16-bit address lines from an 8051 derivative to multiple SRAM chips in a legacy instrumentation system. IC Role / Device Role / Timing Role: Hex inverting driver boosting address signal edge rate and noise margin; outputs wired in parallel for higher fanout. Use Value: Transition time ≤18 ns (max) at VCC = 4.5 V reduces address skew across memory bank; low ICC (<160 µA) minimizes standby power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT366D,118 | SO16 package (SOT109-1); 3.9 mm body width; 1.27 mm pitch; higher thermal resistance (12.4 mW/K derating above 110 °C) | Better suited for through-hole prototyping or wave-soldered industrial PCBs; less space-efficient than TSSOP | Select when board assembly uses SOIC footprints or requires higher mechanical robustness in vibration-prone environments |
| SN74HCT366PWR | TSSOP16 from Texas Instruments; identical pinout and logic; VIH/VIL specs match within 0.1 V; CPD = 32 pF vs 30 pF | Validated for TI-specific design ecosystems (e.g., MSP430 launchpads); same industrial temp grade (-40 to +125 °C) | Choose for TI-based reference designs or when dual-sourcing across Nexperia/TI is required for supply chain resilience |
Compared with 74HCT366PW,118, the SO16 variant offers easier manual rework but lower density, while the TI SN74HCT366PWR provides identical functionality with minor capacitance variance-neither is pin-compatible with non-TSSOP packages nor supports wider voltage ranges beyond 4.5–5.5 V.
Availability
74HCT366PW,118 is available at Aetrix Electronics and suitable for industrial I/O expansion, legacy parallel interface buffering, and microcontroller peripheral isolation requiring stable component supply across extended temperature and long product lifecycles.
Supply support for 74HCT366PW,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, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in industrial, automotive, and consumer applications.
The 74HCT366 belongs to Nexperia's 74HCT logic family, engineered for TTL-compatible interfacing in mixed-voltage systems where robustness, low power, and extended temperature operation are critical design requirements.
FAQ
Can 74HCT366PW,118 operate at 3.3 V supply?
No. The 74HCT366PW,118 is specified only for 4.5 V to 5.5 V operation per its recommended conditions. At 3.3 V, input thresholds (VIH ≥ 2.0 V) become marginal, and output drive (VOH ≥ 3.7 V) falls below TTL HIGH-level minimums, risking logic errors. Use 74HC366 for 2.0–6.0 V operation instead.
What is the maximum capacitive load each output can drive reliably?
Each output is characterized up to 50 pF load capacitance with guaranteed timing (tpd ≤36 ns, tt ≤18 ns at VCC = 4.5 V, TA = +125 °C). Driving >50 pF increases transition time and may violate setup/hold margins; add series termination or buffer stages for heavier loads.
How do OE1 and OE2 interact when driven independently?
Both OE1 and OE2 must be LOW for any output to be active. If either is HIGH, all six outputs enter high-impedance state regardless of input states. This OR logic enables fail-safe bus release-e.g., OE1 for normal control, OE2 as hardware emergency disable.
Is there a thermal pad on the TSSOP16 package of 74HCT366PW,118?
No. The SOT403-1 (TSSOP16) package used for 74HCT366PW,118 has no exposed thermal pad. Thermal dissipation relies on PCB copper area connected to pins 8 (GND) and 16 (VCC); derating begins at 91 °C ambient with 8.5 mW/K slope per the datasheet.
74HCT366PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 6
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74HCT366PW,118 FAQ
1.How can I place an order for 74HCT366PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT366PW,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 74HCT366PW,118 reliable?
The price and inventory of 74HCT366PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT366PW,118 is usually 5 days.
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74HCT366PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT366PW,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 74HCT366PW,118?
For technical support, including 74HCT366PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT366PW,118 requirements.
6.How does Aetrix verify that 74HCT366PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT366PW,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 74HCT366PW,118 meets industry standards.
7.What is the process for return or replacement of 74HCT366PW,118?
All 74HCT366PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT366PW,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 74HCT366PW,118 part is unused and in its original packaging.
Return procedure for 74HCT366PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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