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Texas Instruments SN74HC365PWTE4
- Part No.:
- SN74HC365PWTE4
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74HC365PWTE4.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,002
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Product details
Overview
SN74HC365PWTE4 from Texas Instruments is a hex noninverting buffer/line driver with dual 3-state outputs, designed for bus interfacing and memory address driving in industrial and embedded systems. It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, exhibits typical propagation delay of 10 ns, and draws ≤80 µA supply current - enabling low-power, high-density logic buffering in space-constrained PCB layouts.
For engineers reviewing the SN74HC365PWTE4 datasheet, SN74HC365PWTE4 pinout, SN74HC365PWTE4 application, or SN74HC365PWTE4 equivalent, this page provides verified technical context, real-world design meaning for key specs, TSSOP-16 package details, functional mode clarity, and two validated alternative parts for system-level sourcing flexibility.
Technical Context
The SN74HC365PWTE4 implements six independent CMOS buffer channels, each with true (noninverting) output logic and dual-gated 3-state control via OE1 and OE2 inputs. Its output-enable architecture allows channel grouping: both OE pins must be low for data pass-through; either high forces all Y outputs into high-impedance state.
This device uses standard HC-series silicon with rail-to-rail input thresholds, supports LSTTL load compatibility (up to 15 loads), and maintains stable timing across its full 2–6 V supply range - making it suitable for mixed-voltage interface translation between legacy TTL and modern low-voltage logic domains.
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 systems without level shifters. |
| Output Drive Current | ±6 mA at VCC = 5 V - sufficient to drive 15 LSTTL loads or terminate short PCB traces without external buffers. |
| Propagation Delay | 10 ns typical (VCC = 4.5 V, CL = 50 pF) - supports reliable operation up to ~50 MHz clock/data rates in buffered paths. |
| Quiescent Supply Current | 80 µA max - reduces static power in always-on subsystems such as I/O expanders or configuration buses. |
| Input Leakage Current | 1 µA max - ensures minimal loading on upstream drivers or high-impedance signal sources like microcontroller GPIOs. |
| 3-State Enable/Disable Time | 21 ns enable / 19 ns disable (VCC = 6 V) - allows fast bus arbitration and dynamic channel switching in multiplexed data paths. |
| Power Dissipation Capacitance | 35 pF per buffer - used to calculate dynamic power consumption in high-frequency toggle applications. |
Pinout & Package
TSSOP-16 package (5.00 mm × 4.40 mm, 1.2 mm max height), lead-free with NiPdAu/Sn finish, moisture sensitivity level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6 (A1–A6) | Buffer Input | Noninverting data inputs; accept 2–6 V logic levels with hysteresis-free thresholds. |
| 7, 8, 9, 10, 11, 12 (Y1–Y6) | Buffer Output | True (noninverting) 3-state outputs; high-Z when OE1 or OE2 is high. |
| 13 (OE1) | Output Enable 1 | Active-low enable controlling Y1–Y3; tied low to activate first three buffers. |
| 14 (GND) | Ground Reference | Primary return path for all internal logic and output current; requires local 0.1 µF bypass. |
| 15 (VCC) | Supply Voltage | Positive supply rail (2–6 V); must be decoupled within 5 mm of pin using 0.1 µF ceramic capacitor. |
| 16 (OE2) | Output Enable 2 | Active-low enable controlling Y4–Y6; independent of OE1 for split-bus control. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2–6 V operation eliminates need for dedicated voltage regulators in multi-rail systems. |
| High-Current 3-State Outputs | ±6 mA drive capability supports direct connection to unterminated bus lines or memory address latches. |
| Dual Independent Output Enables | OE1 and OE2 allow partitioning of six buffers into two groups (Y1–Y3 and Y4–Y6) for selective bus isolation. |
| Low Power Consumption | 80 µA max ICC enables use in battery-backed or energy-sensitive applications without compromising speed. |
| Fast Switching Performance | 10 ns typical tpd at 4.5 V ensures timing margin in 25 MHz+ digital control loops and address decoding paths. |
Applications
| Memory Address Buffering | Industrial Bus Interface |
|---|---|
|
Use Scenario: Driving 16-bit address lines from an MCU to multiple parallel EEPROM or SRAM devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting buffer with grouped 3-state control isolates memory chips during write cycles and prevents bus contention. Use Value: Eliminates need for discrete pull-up resistors or additional logic gates while maintaining <10 ns address setup time. |
Use Scenario: Interfacing a 3.3 V microcontroller GPIO bank to a 5 V industrial PLC backplane with legacy TTL signaling. IC Role / Device Role / Timing Role: Level-tolerant buffer translating logic levels bidirectionally without external biasing networks. Use Value: Achieves robust noise immunity and fanout >10 at 5 V while drawing <100 µA quiescent current. |
| Configurable I/O Expansion | Test Equipment Signal Conditioning |
|
Use Scenario: Adding six programmable output lines to an FPGA-based test fixture where some lines must be tri-stated during calibration sequences. IC Role / Device Role / Timing Role: Programmable output driver with dual OE control enabling dynamic reconfiguration of signal routing paths. Use Value: Reduces FPGA pin count usage by 6 and avoids custom logic synthesis for tristate management. |
Use Scenario: Conditioning slow-rising clock signals from a function generator before feeding into high-speed ADC sampling clocks. IC Role / Device Role / Timing Role: Edge-shaping buffer sharpening rise/fall times and providing clean, low-jitter output transitions. Use Value: Improves clock edge monotonicity and reduces jitter accumulation in multi-stage timing chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex buffer with 3-state output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT365PWRE4 | CMOS input compatible with TTL voltage levels (VIH = 2 V min), slightly higher ICC (160 µA max). | Better suited for direct connection to legacy 5 V TTL outputs without level shifting. | Select when interfacing with older 5 V logic families where input threshold compatibility is critical. |
| SN74LVC365APWRE4 | Lower VCC range (1.65–5.5 V), higher drive (±24 mA), faster tpd (5.5 ns typ), but not 5 V tolerant on inputs. | Optimized for 3.3 V or 2.5 V systems requiring higher speed and drive strength. | Choose for modern low-voltage designs where 5 V input tolerance is not required and performance headroom is needed. |
Compared with SN74HC365PWTE4, SN74HCT365PWRE4 offers guaranteed TTL-input compatibility at the cost of higher static power, while SN74LVC365APWRE4 delivers superior speed and drive in sub-5 V domains but sacrifices 5 V input tolerance - guiding selection based on voltage domain alignment and interface legacy requirements.
Availability
SN74HC365PWTE4 is available at Aetrix Electronics and suitable for industrial automation interfaces, memory subsystem buffering, and embedded I/O expansion requiring stable component supply across long production lifecycles.
Supply support for SN74HC365PWTE4 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 SN74HC365PWTE4 belongs to TI's industry-standard 74HC logic family, engineered for high noise immunity, low power, and seamless integration into mixed-voltage digital systems - particularly where bus isolation and address/data buffering are critical.
FAQ
What is the maximum operating temperature for SN74HC365PWTE4?
The SN74HC365PWTE4 has a specified operating free-air temperature range of –40 °C to +85 °C, consistent with commercial-grade TI logic devices. This rating applies to the PW (TSSOP) package variant and is validated under recommended operating conditions including VCC = 2–6 V and proper PCB thermal layout.
Does SN74HC365PWTE4 support 5 V tolerant inputs?
Yes, SN74HC365PWTE4 supports 5 V tolerant inputs across its full 2–6 V supply range. Input voltage limits extend from 0 V to VCC, and VIH/VIL thresholds scale with VCC - allowing safe operation with 5 V signals even when powered from 3.3 V, provided VCC ≥ 2 V.
How are the output enable pins OE1 and OE2 used in SN74HC365PWTE4?
In SN74HC365PWTE4, OE1 controls Y1–Y3 and OE2 controls Y4–Y6. Both must be low for corresponding outputs to pass A-inputs to Y-outputs; if either is high, its associated group enters high-impedance state. This enables independent bus segment control without external logic.
Can SN74HC365PWTE4 drive a 50 Ω transmission line directly?
No, SN74HC365PWTE4 is not designed for direct 50 Ω line driving. Its ±6 mA output drive at 5 V yields ~833 Ω effective source impedance - suitable for unterminated buses or capacitive loads ≤50 pF, but requires external series termination or a dedicated line driver for controlled-impedance PCB traces.
Is SN74HC365PWTE4 RoHS compliant and lead-free?
Yes, SN74HC365PWTE4 is RoHS compliant and features a lead-free terminal finish (NiPdAu over Sn). The device meets JEDEC J-STD-020 moisture sensitivity level 1 and is qualified for peak reflow temperatures up to 260 °C, as confirmed in TI's official packaging documentation.
SN74HC365PWTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74HC365PWTE4 FAQ
1.How can I place an order for SN74HC365PWTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC365PWTE4 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 SN74HC365PWTE4 reliable?
The price and inventory of SN74HC365PWTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC365PWTE4 is usually 5 days.
3.What payment methods are accepted for SN74HC365PWTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC365PWTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC365PWTE4?
SN74HC365PWTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC365PWTE4 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 SN74HC365PWTE4?
For technical support, including SN74HC365PWTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC365PWTE4 requirements.
6.How does Aetrix verify that SN74HC365PWTE4 is sourced from the original manufacturer or authorized distributors?
All SN74HC365PWTE4 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 SN74HC365PWTE4 meets industry standards.
7.What is the process for return or replacement of SN74HC365PWTE4?
All SN74HC365PWTE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC365PWTE4, 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 SN74HC365PWTE4 part is unused and in its original packaging.
Return procedure for SN74HC365PWTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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