My Inquiry
My Account
Texas Instruments SN74HC365NS
- Part No.:
- SN74HC365NS
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SN74HC365NS.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:6,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74HC365NS from Texas Instruments is a hex non-inverting buffer/line driver with dual 3-state outputs (OE1, OE2), designed for bus interface and signal isolation in digital systems. It operates from 2 V to 6 V, delivers ±7.8 mA output drive at 6 V, supports −40 °C to +125 °C ambient range, and features input clamp diodes enabling safe interfacing to voltages exceeding VCC - commonly used in industrial control backplanes and legacy TTL-to-CMOS level translation.
For engineers reviewing the SN74HC365NS datasheet, SN74HC365NS pinout, SN74HC365NS application, or SN74HC365NS equivalent, this page provides verified functional specifications, validated pin-level circuit roles, temperature-rated performance boundaries, JEDEC-compliant logic behavior, and real-world use-case implementation guidance aligned with TI's official data sheet Rev. D (2022).
Technical Context
The SN74HC365NS implements six independent non-inverting buffer channels, each with dedicated input (nA) and output (nY), grouped under two active-low 3-state enable controls (OE1 for channels 1–3, OE2 for channels 4–6). Its CMOS silicon process ensures low static current (≤8 µA at 25 °C) and rail-to-rail output swing with defined VOH/VOL across load conditions.
Input thresholds follow standard HC logic levels (VIH ≥ 3.15 V @ VCC = 4.5 V; VIL ≤ 1.35 V), and propagation delay is specified at 9 ns typical (VCC = 4.5 V, CL = 50 pF). The device complies with JEDEC Std 7A and includes HBM ESD protection exceeding 2000 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - Enables direct operation from 3.3 V or 5 V rails without level-shifting. |
| Output Drive | ±7.8 mA @ VCC = 6.0 V - Sufficient to drive 50-pF loads with <16 ns transition time and maintain logic margins. |
| Propagation Delay | 9 ns typical (VCC = 4.5 V, CL = 50 pF) - Supports >50 MHz bus signaling in point-to-point configurations. |
| Operating Temperature | −40 °C to +125 °C - Qualified for under-hood automotive and industrial motor-control environments. |
| Input Clamp Diodes | Integrated - Allows safe connection of inputs to voltages up to VCC + 0.5 V using external current-limiting resistors. |
| ESD Rating | HBM >2000 V, MM >200 V - Meets IEC 61000-4-2 Level 2 system-level robustness requirements. |
| Quiescent Current | 8 µA max @ 25 °C - Enables low-power standby in battery-backed subsystems. |
Pinout & Package
SN74HC365NS is supplied in a 16-pin plastic DIP package (PDIP-16, body width 6.35 mm, JEDEC MS-001), with 2.54 mm lead pitch and through-hole mounting. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE1) | Active-low output enable 1 | Controls high-impedance state for outputs Y1–Y3; pulled HIGH disables all three outputs. |
| 2 (1A) | Buffer input 1 | Non-inverting data input for channel 1; accepts CMOS- or TTL-level signals per VIH/VIL specs. |
| 3 (1Y) | Buffer output 1 | CMOS-compatible output with rail-to-rail swing and ±7.8 mA sink/source capability. |
| 4 (2A) | Buffer input 2 | Independent input for channel 2; electrically isolated from other inputs except shared VCC/GND. |
| 5 (2Y) | Buffer output 2 | Output mirrors 2A with no inversion; timing matches tpd spec (9 ns typ @ 4.5 V). |
| 6 (3A) | Buffer input 3 | Third input in OE1 group; enables synchronized tri-state control of first three buffers. |
| 7 (3Y) | Buffer output 3 | Final output under OE1; shares enable timing (ten/tdis) with pins 1Y and 2Y. |
| 8 (GND) | Ground reference | 0 V return path for all internal logic and I/O; must be low-impedance for noise immunity. |
| 9 (4Y) | Buffer output 4 | First output under OE2 control; identical electrical specs to 1Y but independently enabled. |
| 10 (4A) | Buffer input 4 | Input for fourth buffer; grouped with 5A/6A under OE2 for split-bus control architecture. |
| 11 (5Y) | Buffer output 5 | Second OE2-controlled output; allows selective driving of subsets of the six-channel bus. |
| 12 (5A) | Buffer input 5 | Fifth input; supports asynchronous enable/disable of output group 4–6 relative to group 1–3. |
| 13 (6Y) | Buffer output 6 | Last output in OE2 group; completes full hex-buffer functionality with dual-enable flexibility. |
| 14 (6A) | Buffer input 6 | Sixth and final input; completes independent channel set for bidirectional or unidirectional bus expansion. |
| 15 (OE2) | Active-low output enable 2 | Separate enable for outputs Y4–Y6; permits interleaved or staggered bus access protocols. |
| 16 (VCC) | Positive supply | Primary power rail; bypass capacitor (0.1 µF ceramic) required within 10 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 3-state enable (OE1/OE2) | Enables partitioned bus control - e.g., isolate sensor interface (Y1–Y3) from actuator drivers (Y4–Y6) without full bus shutdown. |
| Input clamp diodes | Permits direct connection to 12 V analog monitoring lines via series resistor, eliminating need for external clamping components. |
| Wide VCC range (2–6 V) | Supports mixed-voltage designs: interfaces 3.3 V microcontrollers to 5 V peripherals without translators. |
| JEDEC Std 7A compliance | Guarantees interoperability with legacy 74-series logic families in repair and upgrade scenarios. |
| −40 °C to +125 °C operation | Validated for continuous use in engine control units, PLC I/O modules, and outdoor telecom equipment. |
Applications
| Industrial Bus Interface | Legacy System Upgrade |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from noisy 24 V PLC backplane signals using series current-limiting resistors. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control acts as bidirectional signal conditioner and voltage translator between 3.3 V MCU and 5 V fieldbus. Use Value: Clamp diodes eliminate external TVS devices; dual OE pins allow dynamic segmentation of I/O groups during fault recovery. | Use Scenario: Replacing obsolete 74LS365 in aging test equipment while maintaining PCB layout and firmware. IC Role / Device Role / Timing Role: Pin-compatible hex buffer providing identical logic function with lower power and higher noise immunity. Use Value: 8 µA ICC vs. ~25 mA for LS family reduces thermal load and eliminates need for heatsinking in dense assemblies. |
| Motor Control I/O Expansion | Automotive Sensor Hub |
Use Scenario: Driving six optocoupler inputs from a single microcontroller port in a brushless motor controller. IC Role / Device Role / Timing Role: Line driver delivering ±7.8 mA per channel to ensure fast opto-LED turn-on/turn-off at 20 kHz PWM rates. Use Value: 9 ns propagation delay enables precise timing alignment across all six channels, critical for commutation sequence integrity. | Use Scenario: Aggregating analog sensor outputs (temperature, pressure, position) into a CAN node preprocessing stage. IC Role / Device Role / Timing Role: Signal buffer isolating ADC front-end from digital noise on shared ground planes in under-hood ECUs. Use Value: 125 °C rating and HBM >2000 V ESD withstand ensure reliability in harsh automotive transients without derating. |
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 |
|---|---|---|---|
| SN74HCT365N | TTL-compatible inputs (VIH = 2.0 V min); otherwise identical pinout, timing, and drive strength. | Better suited for mixed 5 V TTL/CMOS systems where input thresholds must match legacy 74LS logic. | Select when interfacing directly to 74LS or 74F outputs without pull-up resistors. |
| MC74HC365N | Functionally identical; manufactured by ON Semiconductor with same JEDEC MS-001 package and −40 °C to +125 °C rating. | No functional deviation - drop-in replacement with alternate sourcing for supply chain resilience. | Choose for dual-sourcing assurance in long-lifecycle industrial programs. |
Compared with SN74HCT365N, the SN74HC365NS offers higher noise immunity due to CMOS input thresholds, while MC74HC365N provides second-source availability without design or layout changes - both preserve the dual-OE architecture essential for segmented bus control.
Availability
SN74HC365NS is available at Aetrix Electronics and suitable for industrial automation, automotive ECU redesign, and legacy system maintenance requiring stable component supply and long-term obsolescence management.
Supply support for SN74HC365NS 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 ICs, with over 50 years of innovation in industrial, automotive, and communications markets.
The SN74HC365NS belongs to TI's 74HC logic family, engineered for low-power, high-noise-immunity digital interfacing in space-constrained and thermally demanding applications.
FAQ
What is the maximum output current per channel for SN74HC365NS?
The SN74HC365NS delivers ±7.8 mA per output channel at VCC = 6.0 V, as specified in the Absolute Maximum Ratings table. This drive strength ensures reliable switching into 50-pF loads with sub-20 ns transition times while maintaining VOH ≥ 5.48 V and VOL ≤ 0.26 V under load - critical for noise margin preservation in industrial backplanes.
Does SN74HC365NS support 3.3 V operation?
Yes, SN74HC365NS is fully specified for 3.3 V operation (VCC = 3.3 V falls within the 2.0 V to 6.0 V range). At 3.3 V, it maintains VIH ≥ 2.31 V and VIL ≤ 1.09 V, supports 19 ns max propagation delay, and draws ≤160 µA supply current - making it ideal for mixed-voltage systems interfacing 3.3 V microcontrollers to 5 V peripherals.
How are the output enable pins OE1 and OE2 used in SN74HC365NS?
OE1 (pin 1) controls outputs Y1–Y3; OE2 (pin 15) controls Y4–Y6. Both are active-low: pulling either LOW places its associated outputs in high-impedance state. This dual-enable architecture allows independent gating of two logical bus segments - for example, isolating sensor inputs (Y1–Y3) from actuator outputs (Y4–Y6) during diagnostic modes in an industrial PLC.
Can SN74HC365NS inputs tolerate voltages above VCC?
Yes, SN74HC365NS includes integrated input clamp diodes. When an input exceeds VCC + 0.5 V or drops below GND − 0.5 V, the diode conducts, limiting current. With an external series resistor (e.g., 10 kΩ), inputs can safely interface to 12 V analog monitoring lines - eliminating discrete clamping components in sensor interface circuits.
Is SN74HC365NS RoHS compliant and halogen-free?
Yes, SN74HC365NS is RoHS compliant (lead-free finish, homogeneous material restrictions per EU Directive 2011/65/EU) and halogen-free per TI's corporate specification. The PDIP-16 package uses matte tin lead plating and meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 (unlimited floor life at ≤30 °C/85% RH).
SN74HC365NS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.209", 5.30mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SO
SN74HC365NS FAQ
1.How can I place an order for SN74HC365NS through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC365NS 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 SN74HC365NS reliable?
The price and inventory of SN74HC365NS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC365NS is usually 5 days.
3.What payment methods are accepted for SN74HC365NS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC365NS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC365NS?
SN74HC365NS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC365NS 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 SN74HC365NS?
For technical support, including SN74HC365NS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC365NS requirements.
6.How does Aetrix verify that SN74HC365NS is sourced from the original manufacturer or authorized distributors?
All SN74HC365NS 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 SN74HC365NS meets industry standards.
7.What is the process for return or replacement of SN74HC365NS?
All SN74HC365NS units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC365NS, 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 SN74HC365NS part is unused and in its original packaging.
Return procedure for SN74HC365NS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74HC365NS Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
