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Texas Instruments SN74HC365NE4
- Part No.:
- SN74HC365NE4
- Manufacturer:
- Texas Instruments
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
SN74HC365NE4.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:950
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Product details
Overview
SN74HC365NE4 from Texas Instruments is a hex noninverting buffer/line driver with dual 3-state outputs, designed for memory address driving, bus interfacing, and clock distribution in industrial and embedded systems. It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, features 10 ns typical propagation delay, and draws ≤80 µA ICC.
For engineers reviewing the SN74HC365NE4 datasheet, SN74HC365NE4 pinout, SN74HC365NE4 application, or SN74HC365NE4 equivalent, this page provides verified functional mode behavior, real-world 3-state timing (ten/tdis), bus-drive capability (15 LSTTL loads), and package-specific thermal resistance (67 °C/W for PDIP) - all critical for signal integrity and power-aware logic design.
Technical Context
The SN74HC365NE4 implements six independent CMOS buffers with true (noninverting) outputs and dual active-low output-enable controls (OE1 and OE2). Outputs enter high-impedance state when either OE1 or OE2 is high, enabling bidirectional bus control without external logic.
Its architecture supports mixed-voltage system interfacing across 2–6 V supply range, with input thresholds referenced to VCC (VIH = 0.7×VCC, VIL = 0.3×VCC), and guaranteed rail-to-rail output swing under load - essential for reliable level translation between HC-family logic stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Output Drive Strength | ±6 mA at 5 V - sufficient to drive 15 LSTTL loads or terminate short PCB traces without buffering. |
| Propagation Delay (tpd) | 10 ns typical at VCC = 4.5 V, CL = 50 pF - ensures timing compliance in sub-25 MHz synchronous bus applications. |
| Enable/Disable Time | ten = 26 ns, tdis = 21 ns (VCC = 4.5 V) - supports fast bus arbitration and dynamic peripheral enable/disable sequencing. |
| Quiescent Current (ICC) | ≤80 µA max - minimizes standby power in battery-backed or energy-sensitive control modules. |
| Input Leakage Current | ≤1 µA max - prevents unintended logic state drift on unterminated or high-impedance control lines. |
| Output Leakage (IOZ) | ≤5 µA max in 3-state - maintains bus integrity during hot-swap or multi-driver contention scenarios. |
Pinout & Package
SN74HC365NE4 is supplied in 16-pin PDIP (Plastic Dual In-line Package) with 19.31 mm × 6.35 mm body size and through-hole mounting compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6 (A1–A6) | Buffer Input | Noninverting data inputs; each drives corresponding Y output when both OEs are low. |
| 7, 8, 9, 10, 11, 12 (Y1–Y6) | Buffer Output | True (noninverted) outputs; enter high-Z when OE1 or OE2 is high. |
| 13 (OE1) | Output Enable 1 | Active-low control for Y1–Y3; high disables Y1–Y3 regardless of OE2 state. |
| 14 (GND) | Ground Reference | Logic and power return path; must be low-impedance for noise immunity and timing stability. |
| 15 (OE2) | Output Enable 2 | Active-low control for Y4–Y6; high disables Y4–Y6 regardless of OE1 state. |
| 16 (VCC) | Supply Voltage | Positive supply rail (2–6 V); requires local 0.1 µF ceramic bypass capacitor per device. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2 V to 6 V operation allows seamless integration into mixed-voltage systems (e.g., 3.3 V MCU controlling 5 V peripherals). |
| Dual Independent OE Control | OE1 governs Y1–Y3; OE2 governs Y4–Y6 - enables partial bus gating without disabling entire channel set. |
| High-Current 3-State Outputs | ±6 mA drive at 5 V supports direct connection to legacy TTL loads or termination resistors without external drivers. |
| Low Power Consumption | 80 µA max ICC reduces thermal load in dense logic arrays and extends battery life in portable instrumentation. |
| Fast Switching Performance | 10 ns typical tpd and 21 ns tdis ensure deterministic timing in address/data latching and synchronous bus handshaking. |
Applications
| Memory Address Buffering | Industrial Bus Interface |
|---|---|
|
Use Scenario: Driving 16-bit address lines from an MCU to multiple parallel EEPROM or SRAM chips in a PLC backplane. IC Role / Device Role / Timing Role: Noninverting buffer with dual OE control isolates address bus segments during chip-select transitions. Use Value: Prevents address glitches during memory bank switching by enabling/disabling Y1–Y3 (low-order bits) and Y4–Y6 (high-order bits) independently. |
Use Scenario: Interfacing a 3.3 V microcontroller to a 5 V RS-485 transceiver and legacy 5 V I/O expanders on factory-floor equipment. IC Role / Device Role / Timing Role: Level-translating line driver providing voltage-compatible signal conditioning between mixed-supply subsystems. Use Value: Eliminates need for discrete level shifters by operating reliably across 3.3 V and 5 V logic thresholds while maintaining 10 ns timing margins. |
| Programmable Logic Glue | Test Equipment Signal Routing |
|
Use Scenario: Implementing configurable signal paths in FPGA-based test fixtures where address/data lines must be dynamically routed to DUT pins. IC Role / Device Role / Timing Role: 3-state buffer acting as programmable interconnect node controlled via FPGA GPIOs tied to OE1/OE2. Use Value: Enables runtime reconfiguration of signal routing without mechanical switches or relays, reducing fixture wear and test cycle time. |
Use Scenario: Multiplexing calibration reference signals (e.g., precision clocks or DAC outputs) to multiple instrument channels in automated test systems. IC Role / Device Role / Timing Role: Low-skew, high-Z isolation buffer preventing crosstalk and loading effects when reference signals are not actively selected. Use Value: Maintains signal fidelity (<10 ns skew) and source impedance integrity across 16-channel test head configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT365N | TTL-compatible input thresholds (VIH = 2 V min), identical pinout and 3-state behavior. | Better suited for interfacing with legacy 5 V TTL logic where HC input thresholds may cause marginal noise margin. | Select SN74HCT365N when mixing with older 74LS/74ALS families; otherwise SN74HC365NE4 offers lower power and wider VCC range. |
| 74LCX365M | Lower VCC range (2.0–3.6 V), higher speed (tpd = 5.5 ns), and 5 V tolerant inputs - but incompatible with 5 V-only systems. | Optimized for 3.3 V-only portable/embedded designs requiring faster timing and reduced supply count. | Choose 74LCX365M only in pure 3.3 V environments; SN74HC365NE4 remains preferred for dual-voltage or legacy 5 V compatibility. |
Compared with SN74HCT365N and 74LCX365M, SN74HC365NE4 uniquely balances wide supply flexibility (2–6 V), robust 5 V tolerance, and ultra-low quiescent current - making it the default choice for industrial control, test equipment, and mixed-voltage logic interfacing where reliability and power efficiency are co-prioritized.
Availability
SN74HC365NE4 is available at Aetrix Electronics and suitable for industrial automation, test instrumentation, and embedded control systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole packaging.
Supply support for SN74HC365NE4 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The SN74HC365NE4 belongs to TI's 74HC logic family, engineered for high noise immunity, low power consumption, and interoperability across mixed-voltage digital systems - specifically targeting memory expansion, bus buffering, and signal routing in ruggedized electronics.
FAQ
What is the maximum operating temperature for SN74HC365NE4?
The SN74HC365NE4 is rated for an operating free-air temperature range of –40 °C to +85 °C, consistent with its PDIP packaging and commercial-grade qualification. This makes it suitable for use in industrial control panels, test equipment enclosures, and other environments where ambient temperatures remain within this span without forced cooling.
Does SN74HC365NE4 support 3.3 V logic levels?
Yes, SN74HC365NE4 fully supports 3.3 V operation: its recommended VCC range includes 3.3 V, input thresholds scale with VCC (VIH ≈ 2.3 V, VIL ≈ 1.0 V at 3.3 V), and outputs swing rail-to-rail. It can directly interface with 3.3 V MCUs while driving 5 V-tolerant peripherals when VCC = 5 V.
How does the dual OE structure of SN74HC365NE4 improve system design?
The dual OE inputs (OE1 for Y1–Y3, OE2 for Y4–Y6) allow independent control of two logical groups of outputs. This enables segmented bus management - for example, gating low-order address bits separately from high-order bits during memory bank selection - reducing timing conflicts and eliminating need for additional logic gates in address decoding paths.
Can SN74HC365NE4 replace SN74LS365 in existing designs?
SN74HC365NE4 can replace SN74LS365 in most cases with careful attention to supply voltage and input drive: it operates at 2–6 V (vs LS's 5 V only), draws far less current (80 µA vs ~20 mA), and has higher output drive (±6 mA vs ±8 mA). However, LS inputs are TTL-compatible; verify VIH/VIL margins if driven by older 74LS outputs.
What is the thermal resistance (RθJA) of SN74HC365NE4 in its PDIP package?
The SN74HC365NE4 in PDIP (N) package has a junction-to-ambient thermal resistance (RθJA) of 67 °C/W, as specified in TI's SCLS308E datasheet. This value assumes standard JEDEC 2-layer board conditions and informs thermal design for continuous operation near maximum ICC and output loading limits.
SN74HC365NE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
SN74HC365NE4 FAQ
1.How can I place an order for SN74HC365NE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC365NE4 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 SN74HC365NE4 reliable?
The price and inventory of SN74HC365NE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC365NE4 is usually 5 days.
3.What payment methods are accepted for SN74HC365NE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC365NE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC365NE4?
SN74HC365NE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC365NE4 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 SN74HC365NE4?
For technical support, including SN74HC365NE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC365NE4 requirements.
6.How does Aetrix verify that SN74HC365NE4 is sourced from the original manufacturer or authorized distributors?
All SN74HC365NE4 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 SN74HC365NE4 meets industry standards.
7.What is the process for return or replacement of SN74HC365NE4?
All SN74HC365NE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC365NE4, 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 SN74HC365NE4 part is unused and in its original packaging.
Return procedure for SN74HC365NE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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