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Nexperia USA Inc. 74HCT366D,653
- Part No.:
- 74HCT366D,653
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT366D,653.pdf
- Description:
- IC BUFFER INVERT 5.5V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,984
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Product details
Overview
74HCT366D,653 from Nexperia is a hex inverting 3-state buffer/line driver IC designed for bus-oriented bidirectional data routing and load isolation in digital systems. It features dual active-low output enable inputs (OE1, OE2), TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), 6 independent inverting channels, and operates across -40 °C to +125 °C with supply voltage 4.5–5.5 V. It is used in industrial control backplanes and microcontroller I/O expansion interfaces requiring logic-level translation and bus contention prevention.
For engineers reviewing the 74HCT366D,653 datasheet, 74HCT366D,653 pinout, 74HCT366D,653 application, or 74HCT366D,653 equivalent, key selection criteria include its TTL-input compatibility, 3-state timing (enable/disable times ≤ 53 ns at 4.5 V over full temp range), low ICC (≤ 160 μA at 5.5 V), SO16 package footprint, and guaranteed high-impedance OFF-state leakage (IOZ ≤ ±10.0 μA).
Technical Context
This device implements six independent inverting buffer stages, each with open-drain–like 3-state output control via two shared active-low enables (OE1 on pin 1, OE2 on pin 15). All outputs enter high-impedance (Z) when either OE is HIGH, enabling multi-driver bus arbitration without external logic.
Its TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V) allow direct interfacing with legacy 5 V TTL logic families, while CMOS output drive (VOH ≥ 3.7 V, VOL ≤ 0.4 V at IO = ±6 mA) ensures robust noise margins and fanout capability in mixed-signal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation with standard 5 V rail and tolerance for ±5% regulation drift. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - Guarantees reliable recognition of TTL logic levels without level-shifting circuitry. |
| Propagation Delay | tpd ≤ 36 ns (max, -40 °C to +125 °C, VCC = 4.5 V) - Supports synchronous data rates up to ~14 MHz in buffered paths. |
| 3-State Timing | ten ≤ 53 ns, tdis ≤ 53 ns (max, full temp range) - Enables fast bus turnaround in time-critical multiplexed I/O applications. |
| Output Drive | IO = ±6.0 mA (VOH ≥ 3.7 V, VOL ≤ 0.4 V) - Drives 10 LS-TTL loads or 50 pF capacitive loads with margin. |
| Quiescent Current | ICC ≤ 160 μA (max, VCC = 5.5 V, full temp range) - Minimizes static power in always-on control logic sections. |
| OFF-State Leakage | IOZ ≤ ±10.0 μA (VCC = 5.5 V) - Prevents signal corruption during bus contention or hot-swap events. |
Pinout & Package
74HCT366D,653 is supplied in SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm pitch, gull-wing leads, JEDEC MS-012 compliant.
| 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 for bus sharing. |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Inverting data inputs - Each drives corresponding inverted output (1Y–6Y) when respective OE is LOW. |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | Inverting 3-state outputs - Output = NOT(input) when OE1=LOW & OE2=LOW; Z otherwise. |
| 8 | GND | Ground reference - Return path for all internal logic and output currents; must be low-impedance. |
| 16 | VCC | Positive supply - Powers all six buffers and enable logic; decoupling capacitor required near pin. |
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 shifters when interfacing with 74LS or 74F families. |
| Wide temperature range | -40 °C to +125 °C operation - Qualified for under-hood automotive control modules and industrial PLC I/O cards. |
| Low dynamic power | CPD = 30 pF per buffer - Limits switching power dissipation in high-frequency bus drivers (e.g., < 1 mW at 10 MHz, CL = 50 pF). |
| ESD robustness | HBM > 2000 V, CDM > 1000 V - Reduces handling sensitivity and improves field reliability in automated assembly lines. |
| Clamp diodes on inputs | Enables use of current-limiting resistors for overvoltage protection - Allows safe interface to signals exceeding VCC (e.g., 12 V sensor lines via 10 kΩ series resistor). |
Applications
| Industrial Backplane Bus Driver | Microcontroller I/O Expander |
|---|---|
|
Use Scenario: Isolating and buffering address/data lines between MCU and peripheral cards in modular PLC racks. IC Role / Device Role / Timing Role: Hex inverting 3-state buffer providing direction-controlled bus access and signal inversion for parity or protocol alignment. Use Value: Dual OE inputs allow independent gating of upper/lower half-bus; propagation delay ≤ 36 ns ensures setup/hold compliance at 20 MHz clock domains. |
Use Scenario: Extending GPIO count of an ARM Cortex-M0+ MCU to drive LED arrays and relay banks. IC Role / Device Role / Timing Role: Level-translating buffer converting 3.3 V MCU outputs to 5 V-tolerant logic while enabling/disabling groups via OE pins. Use Value: TTL input thresholds accept 3.3 V logic highs directly; 6 mA drive supports parallel LED strings without external transistors. |
| Legacy System Interface Adapter | Digital Test Fixture Signal Conditioning |
|
Use Scenario: Interfacing modern FPGA-based test controllers to vintage 74LS-based instrumentation subsystems. IC Role / Device Role / Timing Role: Bidirectional bus isolator with inverting logic to match legacy signal polarity conventions (e.g., active-low chip selects). Use Value: Guaranteed VIH/VIL compatibility eliminates risk of marginal switching; 125 °C rating supports convection-cooled chassis designs. |
Use Scenario: Driving multiple DUT inputs simultaneously in automated functional test fixtures with shared signal sources. IC Role / Device Role / Timing Role: Fanout buffer with 3-state control enabling sequential stimulus application across DUT pins without crosstalk. Use Value: Low IOZ (≤ ±10 μA) prevents false triggering during vector transitions; SO16 footprint simplifies fixture PCB layout. |
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 |
|---|---|---|---|
| 74HCT240D,653 | Octal (8-channel), non-inverting + inverting pairs; identical VCC, temp, and timing specs. | Supports larger bus widths; requires logic inversion externally if inverting-only function needed. | Select when 8-bit wide buffering is required and polarity flexibility is acceptable. |
| SN74HCT366N | DIP-16 package; same electrical specs but through-hole mounting and wider body (6.35 mm). | Suitable for prototyping or legacy through-hole PCBs; lacks SO16 thermal performance and density. | Select only for hand-soldered development boards or repair of legacy DIP-based systems. |
Compared with 74HCT366D,653, the 74HCT240D,653 offers higher channel count but less precise polarity control, while SN74HCT366N provides identical logic functionality in a less space-efficient, thermally inferior package-neither is pin-compatible nor drop-in replaceable without board redesign.
Availability
74HCT366D,653 is available at Aetrix Electronics and suitable for industrial automation backplanes, microcontroller I/O expansion, legacy system interface adapters, and digital test fixture signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74HCT366D,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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in high-volume electronics.
The 74HCT366 belongs to Nexperia's industry-standard 74HCT logic family, engineered for seamless interoperability with legacy TTL systems while delivering CMOS power efficiency and robustness in industrial and automotive-adjacent applications.
FAQ
What is the maximum operating temperature for 74HCT366D,653?
The 74HCT366D,653 is fully specified from -40 °C to +125 °C ambient temperature, with all electrical parameters (propagation delay, VOH/VOL, ICC, IOZ) guaranteed across this range at VCC = 4.5–5.5 V. This rating is confirmed in Table 5 (Recommended Operating Conditions) and Tables 6–9 (Static/Dynamic Characteristics) of the Nexperia datasheet Rev. 7.
Can 74HCT366D,653 interface directly with 3.3 V microcontrollers?
Yes - its TTL-compatible inputs accept VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V, making 3.3 V logic HIGH outputs (typically ≥ 2.4 V) reliably recognized as valid HIGH inputs. However, outputs swing to 0–VCC (≈ 0–5 V), so external level-shifting or voltage-tolerant MCU inputs are required on the return path if bidirectional communication is needed.
How does the dual output enable (OE1/OE2) function in practice?
OE1 (pin 1) and OE2 (pin 15) are independent active-low enables: both must be LOW for all six outputs to be active (inverted); if either is HIGH, all outputs go high-impedance. This allows partitioning the six channels - e.g., using OE1 for lower three buffers and OE2 for upper three - enabling selective bus segment control without additional logic gates.
Is 74HCT366D,653 RoHS compliant and lead-free?
Yes - the 74HCT366D,653 (SO16 package, SOT109-1) is manufactured by Nexperia as a lead-free, RoHS-compliant device. This is verified in Nexperia's official product change notices and material declarations, and the package marking "D" denotes lead-free finish per JEDEC J-STD-609.
74HCT366D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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-SO
74HCT366D,653 FAQ
1.How can I place an order for 74HCT366D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT366D,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 74HCT366D,653 reliable?
The price and inventory of 74HCT366D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT366D,653 is usually 5 days.
3.What payment methods are accepted for 74HCT366D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT366D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT366D,653?
74HCT366D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT366D,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 74HCT366D,653?
For technical support, including 74HCT366D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT366D,653 requirements.
6.How does Aetrix verify that 74HCT366D,653 is sourced from the original manufacturer or authorized distributors?
All 74HCT366D,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 74HCT366D,653 meets industry standards.
7.What is the process for return or replacement of 74HCT366D,653?
All 74HCT366D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT366D,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 74HCT366D,653 part is unused and in its original packaging.
Return procedure for 74HCT366D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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