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Nexperia USA Inc. 74HCT365DB/DG,118
- Part No.:
- 74HCT365DB/DG,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HCT365DB/DG,118.pdf
- Description:
- IC BUFFER INVERT 5.5V 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,131
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Product details
Overview
74HCT365DB/DG,118 from Nexperia is a hex non-inverting 3-state buffer/line driver with TTL-compatible inputs, 16-pin SO16 package, operating from 4.5 V to 5.5 V, −40 °C to +125 °C, and delivering 6 mA output drive at 4.5 V. It serves as a bidirectional bus interface or signal isolation element in industrial control backplanes and microcontroller I/O expansion circuits.
For engineers reviewing the 74HCT365DB/DG,118 datasheet, 74HCT365DB/DG,118 pinout, 74HCT365DB/DG,118 application, or 74HCT365DB/DG,118 equivalent, this device is selected for high-noise-immunity digital buffering where TTL-level input compatibility, low quiescent current (≤160 μA), fast enable/disable timing (≤53 ns disable time at 4.5 V), and robust ESD protection (HBM >2000 V) are required.
Technical Context
The 74HCT365DB/DG,118 implements six independent non-inverting buffers, each with separate active-low 3-state enable control via OE1 (pins 1 & 15). Its TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure direct interfacing with legacy 5 V logic families without level shifting. Output drive capability is specified at ±6.0 mA under 4.5 V supply, supporting standard 50 pF load conditions.
Propagation delay is 38 ns max (nA to nY) and enable/disable times are tightly bounded at 53 ns max (ten/tdis) across the full −40 °C to +125 °C range, enabling reliable use in real-time data routing. Input clamping diodes allow safe operation with input voltages exceeding VCC when used with current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V TTL and mixed-voltage systems without regulator overhead. |
| Input logic type | TTL-level - Accepts 2.0 V min HIGH and 0.8 V max LOW, enabling direct connection to 74LS, 74F, and microcontroller GPIOs. |
| Output drive | ±6.0 mA at VCC = 4.5 V - Sufficient to drive multiple CMOS loads or 50 Ω transmission lines with controlled edge rates. |
| Propagation delay | 38 ns max (−40 °C to +125 °C) - Guarantees deterministic timing in high-reliability industrial timing paths. |
| 3-state disable time | 53 ns max (tdis, VCC = 4.5 V) - Enables fast bus turnaround in shared-data applications like address/data multiplexing. |
| ESD rating | HBM >2000 V, CDM >1000 V - Meets IEC 61000-4-2 Level 2 requirements for board-level handling and system integration. |
| Operating temperature | −40 °C to +125 °C - Qualified for under-hood automotive modules, motor drives, and industrial PLC I/O stages. |
Pinout & Package
74HCT365DB/DG,118 uses the SOT109-1 (SO16) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | OE1, OE2 | Active-low 3-state enable inputs - Independently control groups of three buffers each; tied together for full hex enable. |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Non-inverting data inputs - Accept TTL-level signals; internal clamp diodes permit overvoltage-safe interfacing. |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | Buffered non-inverting outputs - High-impedance OFF-state (Z) when corresponding OE is HIGH; drive ±6 mA. |
| 8 | GND | Digital ground reference - Must be low-inductance connected to PCB ground plane to maintain noise immunity. |
| 16 | VCC | Positive supply rail - Decoupling capacitor (100 nF ceramic) required within 5 mm of pin for stable switching. |
Key Features
| Feature | Design Value |
|---|---|
| Wide temperature range | −40 °C to +125 °C operation - Validated for extended-life deployment in harsh industrial environments. |
| Low static power | 160 μA max ICC at VCC = 5.5 V - Reduces standby power in battery-backed or energy-sensitive systems. |
| Input clamping diodes | Integrated VI < −0.5 V or VI > VCC + 0.5 V protection - Enables safe interfacing to signals up to 7 V with external current limiting. |
| High noise immunity | Typical noise margin >1.0 V at VCC = 5 V - Resists EMI-induced glitches on shared PCB traces or connectors. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - Prevents destructive latch-up during transient overvoltage events. |
Applications
| Industrial PLC I/O Expansion | Microcontroller Bus Isolation |
|---|---|
|
Use Scenario: Adding isolated digital I/O channels to a programmable logic controller rack using a 5 V backplane. IC Role / Device Role / Timing Role: Hex buffer isolates MCU GPIOs from noisy field-side signals while enabling bidirectional data routing via 3-state control. Use Value: 53 ns disable time ensures clean bus arbitration between CPU and peripheral modules without contention glitches. |
Use Scenario: Interfacing an ARM Cortex-M4's 3.3 V GPIO bank to legacy 5 V peripheral ICs on a mixed-voltage development board. IC Role / Device Role / Timing Role: Acts as a level-tolerant unidirectional driver, translating 3.3 V logic levels to 5 V TTL-compatible outputs. Use Value: TTL input thresholds (2.0 V VIH min) accept 3.3 V logic HIGH directly-no external level shifter required. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
|
Use Scenario: Driving LED status indicators and relay coils in a vehicle body control unit operating at ambient temperatures up to 125 °C. IC Role / Device Role / Timing Role: Provides current gain and electrical isolation between low-power MCU outputs and higher-current loads. Use Value: −40 °C to +125 °C qualification and 6 mA drive capability support direct connection to LEDs and small solenoids. |
Use Scenario: Buffering and gating test pattern signals in automated test equipment (ATE) before distribution to DUT pins. IC Role / Device Role / Timing Role: Enables precise timing-controlled signal injection via independent OE1/OE2 enables synchronized to test clock edges. Use Value: Matched propagation delay (38 ns max) and tight enable timing (53 ns max) ensure sub-100 ns channel-to-channel skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT365PW,118 | TSSOP16 package (4.4 mm width); 8.5 mW/K thermal derating above 91 °C vs. SO16's 12.4 mW/K above 110 °C. | Better PCB space efficiency but lower thermal mass; suited for compact, convection-cooled designs. | Select when board area is constrained and peak junction temperature remains below 110 °C. |
| SN74HCT365N | PDIP-16 package; wider lead spacing (0.1 inch); no specified 125 °C operation; higher parasitic capacitance. | Through-hole prototyping only; not qualified for automotive or extended-temperature production use. | Use only for lab evaluation or low-volume non-critical assemblies; avoid for volume manufacturing. |
Compared with 74HCT365PW,118, the 74HCT365DB/DG,118 offers superior thermal performance in high-ambient environments due to SO16's higher thermal derating threshold; versus SN74HCT365N, it provides guaranteed 125 °C operation and tighter AC specs essential for industrial reliability.
Availability
74HCT365DB/DG,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, microcontroller bus isolation, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74HCT365DB/DG,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 specializing in high-performance, high-reliability logic, analog, and discrete components, with leadership in automotive-qualified and industrial-grade solutions.
The 74HCT365 belongs to Nexperia's 74HCT logic family, engineered for TTL-compatible interfacing in noise-prone industrial and automotive environments where robustness, wide temperature operation, and predictable timing are critical.
FAQ
Is 74HCT365DB/DG,118 pin-compatible with 74HC365 variants?
Yes - both share identical pinout (SOT109-1 SO16), functional diagram, and logic behavior. However, 74HCT365DB/DG,118 uses TTL-level inputs (VIH = 2.0 V min), while 74HC365 requires CMOS-level inputs (VIH ≈ 3.15 V at VCC = 4.5 V). Swapping them may cause logic misreads if driving sources lack sufficient voltage swing.
Can OE1 and OE2 be tied together for unified 3-state control?
Yes - pins 1 (OE1) and 15 (OE2) are electrically independent but functionally identical active-low enables. Connecting them simplifies control logic and allows all six buffers to enter high-impedance state simultaneously, which is standard practice in bus-driver applications.
What is the maximum capacitive load this device can drive reliably?
The datasheet specifies dynamic characteristics at CL = 50 pF, and transition time (tt) remains ≤18 ns at that load. For reliable signal integrity, keep total output capacitance (including trace, probe, and load) ≤50 pF. Exceeding this increases rise/fall times and may violate setup/hold margins in synchronous systems.
Does this part support hot-swap or live-insertion into powered backplanes?
No - 74HCT365DB/DG,118 lacks explicit hot-swap protection features such as power-on reset, slew-rate limiting, or back-drive immunity. While input clamping diodes provide some overvoltage tolerance, uncontrolled insertion into a live 5 V bus risks latch-up or transient overstress; use dedicated hot-swap controllers for such applications.
74HCT365DB/DG,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
74HCT365DB/DG,118 FAQ
1.How can I place an order for 74HCT365DB/DG,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT365DB/DG,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 74HCT365DB/DG,118 reliable?
The price and inventory of 74HCT365DB/DG,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT365DB/DG,118 is usually 5 days.
3.What payment methods are accepted for 74HCT365DB/DG,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT365DB/DG,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT365DB/DG,118?
74HCT365DB/DG,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT365DB/DG,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 74HCT365DB/DG,118?
For technical support, including 74HCT365DB/DG,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT365DB/DG,118 requirements.
6.How does Aetrix verify that 74HCT365DB/DG,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT365DB/DG,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 74HCT365DB/DG,118 meets industry standards.
7.What is the process for return or replacement of 74HCT365DB/DG,118?
All 74HCT365DB/DG,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT365DB/DG,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 74HCT365DB/DG,118 part is unused and in its original packaging.
Return procedure for 74HCT365DB/DG,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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