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Texas Instruments SN74HC365PWR
- Part No.:
- SN74HC365PWR
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74HC365PWR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:594
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Product details
Overview
SN74HC365PWR from Texas Instruments is a hex noninverting buffer/line driver with dual 3-state enable inputs (OE1, OE2), 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 ICC.
For engineers reviewing the SN74HC365PWR datasheet, SN74HC365PWR pinout, SN74HC365PWR application, or SN74HC365PWR equivalent, this page provides verified functional role, TSSOP-16 package mapping, 3-state timing behavior, bus-driving capability, and validated alternative options for memory interface and clock distribution designs.
Technical Context
The SN74HC365PWR implements six independent CMOS buffers with true (noninverting) outputs and dual-gated 3-state control: outputs enter high-impedance when either OE1 or OE2 is high. Its logic is fully compatible with HC-series voltage thresholds and fanout requirements.
It supports wide supply range (2–6 V), features low input current (≤1 µA), and maintains stable switching performance across −40°C to +85°C ambient. Propagation delay (tpd = 10 ns typ. at VCC = 4.5 V, CL = 50 pF) and enable/disable times are characterized per channel under defined load conditions.
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 translation. |
| Output Drive Capability | ±6 mA at 5 V - sufficient to drive 15 LSTTL loads or terminate short PCB traces on shared buses. |
| Propagation Delay (tpd) | 10 ns typical at VCC = 4.5 V, CL = 50 pF - ensures tight timing margins in high-speed address/data buffering. |
| Quiescent Current (ICC) | ≤80 µA max - supports low-power standby modes in battery-backed or energy-sensitive systems. |
| Input Leakage Current | ≤1 µA max - prevents unintended logic state shifts when inputs are tied to weak pull-ups/downs. |
| 3-State Enable Logic | Active-low dual OE (OE1, OE2) - any high input forces all Y outputs into high-Z, enabling flexible bus arbitration. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade operation in extended ambient environments. |
Pinout & Package
TSSOP-16 package (PW), body size 5.00 mm × 4.40 mm, 1.2 mm max height, moisture sensitivity level 1 (260°C peak reflow). Pin 1 index area located at top-left corner; leads spaced at 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6 | A1–A6 Inputs | Noninverting data inputs for each of six buffer channels. |
| 7, 15 | OE1, OE2 | Dual active-low 3-state enable controls; either high disables all outputs. |
| 8 | GND | Ground reference for logic and power return path. |
| 9, 10, 11, 12, 13, 14 | Y1–Y6 Outputs | True (noninverting) buffered outputs, high-impedance when OE1 or OE2 = high. |
| 16 | VCC | Positive supply rail (2–6 V); requires local 0.1-µF bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Wide-Voltage Operation | 2 V to 6 V supply range allows interoperability across legacy 5 V and modern 3.3 V systems without external regulators. |
| High-Current 3-State Outputs | ±6 mA drive at 5 V supports direct connection to loaded buses or memory address lines without external drivers. |
| Low Power Consumption | Max 80 µA ICC enables use in always-on subsystems where quiescent current must remain below 100 µA. |
| Fast Switching Performance | 10 ns typical tpd at 4.5 V ensures minimal signal skew across six parallel channels in timing-critical paths. |
| Dual Output Enable Control | Independent OE1/OE2 pins allow hierarchical bus control-e.g., OE1 for system-level disable, OE2 for local module gating. |
Applications
| Memory Address Buffering | Industrial Bus Interface |
|---|---|
|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or flash devices sharing a common bus. IC Role / Device Role / Timing Role: Noninverting buffer with 3-state outputs isolates address signals during bus contention or device selection. Use Value: Prevents address line loading and signal degradation across long traces while enabling clean bus turnarounds via OE control. |
Use Scenario: Interfacing a PLC CPU module to distributed I/O expansion cards over a parallel backplane bus. IC Role / Device Role / Timing Role: Hex driver translates and strengthens control/address signals between modules operating at different noise margins. Use Value: ±6 mA drive ensures reliable logic levels despite trace capacitance and EMI; dual OE supports hot-swap arbitration. |
| Microcontroller Peripheral Expansion | Legacy System Signal Conditioning |
|
Use Scenario: Expanding GPIO count of an ARM Cortex-M0+ MCU to drive LED arrays, relays, and discrete sensors. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer for low-drive MCU pins needing higher sink/source capability. Use Value: Eliminates need for discrete transistors or additional logic; 2–6 V compatibility matches both 3.3 V MCU and 5 V peripheral rails. |
Use Scenario: Replacing obsolete TTL buffers (e.g., 74LS365) in field-deployed test equipment requiring long-term component continuity. IC Role / Device Role / Timing Role: Drop-in-compatible CMOS upgrade delivering identical pinout, function, and timing with lower power and wider voltage margin. Use Value: Maintains legacy board layout and firmware while improving reliability, thermal headroom, and supply flexibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT365PWR | CMOS input thresholds matched to TTL logic levels (VIH = 2.0 V min), not HC's VCC-dependent thresholds. | Better compatibility with 5 V TTL outputs; less suitable for mixed 3.3 V/5 V systems with HC-level signaling. | Select when interfacing legacy 5 V TTL sources; avoid if driving from modern 3.3 V MCUs with HC-compatible outputs. |
| 74LVC365APW,118 | Lower VCC range (1.65–5.5 V), faster tpd (5.3 ns typ.), but only single OE input and ±24 mA drive at 3.3 V. | Optimized for 3.3 V-only designs with tighter timing budgets; lacks dual-OE bus arbitration flexibility. | Prefer for new 3.3 V designs demanding speed and density; retain SN74HC365PWR when dual OE or 5 V support is required. |
Compared with SN74HCT365PWR and 74LVC365APW,118, the SN74HC365PWR uniquely balances 2–6 V operation, dual 3-state enables, and proven industrial temperature stability-making it the preferred choice for mixed-voltage bus isolation and legacy-compatible upgrades.
Availability
SN74HC365PWR is available at Aetrix Electronics and suitable for industrial automation, embedded controller design, and legacy system repair requiring stable component supply and long-lifecycle support.
Supply support for SN74HC365PWR 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, with decades of expertise in industrial-grade logic families.
The SN74HC365PWR belongs to TI's industry-standard HC logic family, engineered for robust 3-state bus driving, memory interfacing, and signal conditioning in harsh or thermally constrained environments.
FAQ
What is the maximum recommended supply voltage for SN74HC365PWR?
The absolute maximum supply voltage for SN74HC365PWR is 7 V, but the recommended operating range is 2 V to 6 V. Operating consistently above 6 V risks permanent damage and violates TI's recommended conditions. For reliable long-term operation, maintain VCC within 2–6 V, with 5 V or 3.3 V being most common in practice. The SN74HC365PWR datasheet specifies 6 V as the upper limit for continuous operation.
Does SN74HC365PWR support 3.3 V logic levels?
Yes, SN74HC365PWR fully supports 3.3 V operation: its VIH(min) is 2.0 V at VCC = 3.3 V, and VIL(max) is 0.99 V, aligning with standard 3.3 V CMOS thresholds. Input and output levels are guaranteed across the full 2–6 V supply range, making SN74HC365PWR suitable for mixed-voltage systems without level shifters.
How does the dual output-enable (OE1/OE2) logic work on SN74HC365PWR?
On SN74HC365PWR, the outputs go high-impedance if *either* OE1 *or* OE2 is high (active-low logic). Both OE1 and OE2 must be low for normal buffered operation. This OR-gated enable allows flexible bus control-e.g., one OE can serve as global disable, the other as local module select-without external logic. The SN74HC365PWR function table confirms "H X → Z" and "X H → Z" for all Y outputs.
Can SN74HC365PWR replace older 74LS365 devices?
Yes, SN74HC365PWR is a functional and pin-compatible replacement for 74LS365 in most cases: same 16-pin TSSOP footprint, identical pinout, and matching noninverting 3-state behavior. However, SN74HC365PWR draws far less current (80 µA vs. ~20 mA) and operates down to 2 V, offering improved efficiency and voltage flexibility. Verify OE logic polarity and timing margins in the target system before drop-in substitution.
What is the thermal resistance (RθJA) of SN74HC365PWR in its TSSOP package?
The junction-to-ambient thermal resistance (RθJA) for SN74HC365PWR in the PW (TSSOP-16) package is 108 °C/W, as specified in TI's SCLS308E datasheet Section 5.3. This value assumes standard JEDEC 2-layer board conditions. For sustained operation near maximum ambient temperature, ensure adequate copper pour and airflow, especially when driving heavy capacitive loads that increase dynamic power dissipation in the SN74HC365PWR.
SN74HC365PWR 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74HC365PWR FAQ
1.How can I place an order for SN74HC365PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC365PWR 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 SN74HC365PWR reliable?
The price and inventory of SN74HC365PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC365PWR is usually 5 days.
3.What payment methods are accepted for SN74HC365PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC365PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC365PWR?
SN74HC365PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC365PWR 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 SN74HC365PWR?
For technical support, including SN74HC365PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC365PWR requirements.
6.How does Aetrix verify that SN74HC365PWR is sourced from the original manufacturer or authorized distributors?
All SN74HC365PWR 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 SN74HC365PWR meets industry standards.
7.What is the process for return or replacement of SN74HC365PWR?
All SN74HC365PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC365PWR, 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 SN74HC365PWR part is unused and in its original packaging.
Return procedure for SN74HC365PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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