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Texas Instruments SN74HC367NSR
- Part No.:
- SN74HC367NSR
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SN74HC367NSR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,963
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Product details
Overview
SN74HC367NSR from Texas Instruments is a hex noninverting buffer/line driver with 3-state outputs, organized as two independent banks (4-channel + 2-channel), each controlled by its own active-low output-enable pin (1OE, 2OE). 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 - enabling bus interfacing, memory address buffering, and clock distribution in industrial control and embedded systems.
For engineers reviewing the SN74HC367NSR datasheet, SN74HC367NSR pinout, SN74HC367NSR application, or SN74HC367NSR equivalent, this page provides verified functional architecture, bank-specific enable logic, 3-state timing parameters (ten/tdis), thermal resistance (RθJA = 64 °C/W), and real-world design implications for high-density bus driving and mixed-voltage system interfacing.
Technical Context
The SN74HC367NSR implements dual-bank 3-state logic: Bank 1 (pins 1–10) contains four buffers (1A1→1Y1 through 1A4→1Y4) enabled by 1OE (pin 1); Bank 2 (pins 11–15) contains two buffers (2A1→2Y1, 2A2→2Y2) enabled by 2OE (pin 15). Each buffer passes true (noninverted) input signals to outputs only when its OE is low; otherwise, outputs enter high-impedance state.
Its CMOS HC-family design ensures compatibility with TTL loads (up to 15 LSTTL), low input current (≤1 µA), and rail-to-rail output swing (VOH ≥ 4.4 V, VOL ≤ 0.26 V at VCC = 4.5 V, IO = ±4 mA). Switching performance is characterized at CL = 50 pF and CL = 150 pF, with tpd ranging from 10 ns (VCC = 6 V, CL = 50 pF) to 25 ns (VCC = 6 V, CL = 150 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 6 V - supports direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Output Drive | ±6 mA at 5 V - sufficient to drive 15 LSTTL loads or terminate short PCB traces without external buffers. |
| Propagation Delay | 10 ns typical (VCC = 6 V, CL = 50 pF) - enables reliable operation in sub-50 MHz digital control paths. |
| Quiescent Current | ≤80 µA max ICC - minimizes standby power in battery-backed or energy-sensitive applications. |
| Input Leakage | ≤1 µA max II - prevents unintended logic transitions when inputs are tied to weak pull-ups/downs. |
| Thermal Resistance | RθJA = 64 °C/W (SO package) - allows sustained operation up to 85 °C ambient with minimal derating. |
| Enable Timing | ten = 21 ns, tdis = 19 ns (VCC = 6 V, CL = 50 pF) - supports fast bus arbitration and dynamic channel selection. |
Pinout & Package
SOP-16 (NS) package: 6.20 mm × 5.30 mm body, 1.27 mm lead pitch, 2.00 mm max height, gull-wing leads, RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OE) | Bank 1 output enable (active-low) | Controls all four buffers in Bank 1 (pins 2–10); asserts high-Z when high. |
| 2–10 (1A1–1A4, 1Y1–1Y4) | Bank 1 input/output pairs | True-buffered channels: 1A1→1Y1, 1A2→1Y2, etc.; no inversion or logic transformation. |
| 11–13 (2Y1, 2A1, 2Y2) | Bank 2 output/input pairs | 2A1→2Y1 and 2A2→2Y2 operate independently under 2OE control (pin 15). |
| 14–15 (2A2, 2OE) | Bank 2 input and enable | 2A2 (pin 14) feeds 2Y2 (pin 13); 2OE (pin 15) enables both Bank 2 outputs simultaneously. |
| 16 (VCC) | Positive supply | Must be decoupled with 0.1 µF ceramic capacitor placed adjacent to pin 16 per TI layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state banks | Enables selective bus segmentation: e.g., isolate memory address lines (Bank 1) from peripheral control lines (Bank 2) using separate OE signals. |
| High-current 3-state outputs | ±6 mA drive at 5 V supports direct connection to unterminated 50 Ω transmission lines or legacy TTL buses without external drivers. |
| Low power consumption | 80 µA max ICC allows integration into always-on subsystems (e.g., watchdog logic, status monitors) without significant quiescent load. |
| Wide voltage operation | 2–6 V range permits use across mixed-supply systems (e.g., 3.3 V core + 5 V I/O) without external voltage translation. |
| True output logic | No signal inversion simplifies timing analysis and eliminates need for compensatory logic in address/data path buffering. |
Applications
| Memory Address Buffering | Industrial Bus Interface |
|---|---|
|
Use Scenario: Driving 16-bit address bus between microcontroller and parallel NOR flash memory in programmable logic controllers. IC Role / Device Role / Timing Role: SN74HC367NSR acts as a noninverting address latch buffer, isolating MCU pins from flash capacitive load while maintaining setup/hold timing margins. Use Value: Enables reliable 20 MHz address strobing with <10 ns propagation delay and 6 mA drive - eliminating timing violations seen with direct MCU-to-flash routing. |
Use Scenario: Interfacing RS-485 transceiver control lines (DE/RE) to a 3.3 V FPGA in factory automation I/O modules. IC Role / Device Role / Timing Role: SN74HC367NSR buffers FPGA GPIOs to drive RS-485 transceiver enable inputs requiring 5 V logic levels and >4 mA sink capability. Use Value: Provides level-shifting and current gain without dedicated level translators - reducing BOM count and board area in space-constrained DIN-rail modules. |
| Programmable Logic I/O Expansion | Legacy System Upgrade Interface |
|
Use Scenario: Expanding I/O count of CPLD-based motion controller by adding buffered control signals for stepper motor drivers and limit switches. IC Role / Device Role / Timing Role: SN74HC367NSR serves as bidirectional 3-state I/O expander: Bank 1 drives motor EN/DIR lines; Bank 2 reads switch states via pull-up networks. Use Value: Dual OE pins allow time-multiplexed read/write operations on shared traces - cutting interconnect count by 33% versus discrete buffers. |
Use Scenario: Retrofitting 8-bit ISA bus peripherals into modern ARM-based test equipment using FPGA bridge logic. IC Role / Device Role / Timing Role: SN74HC367NSR buffers ISA address/data lines (A0–A19, D0–D7) while providing 3-state isolation during DMA cycles. Use Value: Matches legacy timing requirements (tpd ≤ 25 ns at CL = 150 pF) and drive strength (15 LSTTL loads), ensuring plug-and-play compatibility without FPGA timing closure rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT367N | TTL-compatible input thresholds (VIH = 2 V min at VCC = 4.5 V); identical pinout and output drive. | Better suited for mixed 5 V TTL/CMOS systems where input noise margin must exceed HC-family levels. | Select SN74HCT367N when interfacing with legacy 5 V TTL outputs; SN74HC367NSR preferred for pure CMOS or 3.3 V–5 V mixed domains. |
| 74LVC125APW | Lower VCC range (1.65–5.5 V), higher speed (tpd = 3.2 ns @ 3.3 V), but only quad (not hex) and different pinout. | Requires PCB redesign due to 14-pin TSSOP package and non-matching enable/bank configuration. | Choose 74LVC125APW only if sub-5 ns timing and 3.3 V operation are mandatory and layout revision is acceptable. |
Compared with SN74HCT367N and 74LVC125APW, the SN74HC367NSR offers optimal balance of wide voltage flexibility, hex-channel density, SOP-16 footprint compatibility, and proven reliability in industrial bus buffering - making it the default choice for cost-sensitive, layout-constrained upgrades of legacy digital interfaces.
Availability
SN74HC367NSR is available at Aetrix Electronics and suitable for industrial control systems, embedded instrumentation, and legacy interface retrofitting requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74HC367NSR 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 over 50 years of innovation in industrial, automotive, and communications markets.
The SN74HC367NSR belongs to TI's industry-standard 74HC logic family, designed specifically for high-density, low-power bus interfacing, memory address buffering, and clock distribution in space- and power-constrained embedded systems.
FAQ
What is the maximum operating temperature for the SN74HC367NSR?
The SN74HC367NSR is rated for an operating free-air temperature range of –40 °C to +85 °C. Its SO package has a junction-to-ambient thermal resistance (RθJA) of 64 °C/W, allowing full-spec operation at 85 °C ambient when power dissipation remains below 156 mW - verified per TI's SCLS309E datasheet Section 5.2 and 5.3.
Does the SN74HC367NSR support 3.3 V logic levels?
Yes, the SN74HC367NSR fully supports 3.3 V operation: VIH is guaranteed ≥1.35 V and VIL ≤1.35 V at VCC = 3.3 V (derated from 4.5 V specs), and output drive remains robust at ±4 mA. This makes SN74HC367NSR suitable for direct interfacing with 3.3 V microcontrollers and FPGAs without level shifters.
How are the two output-enable pins used in the SN74HC367NSR?
The SN74HC367NSR uses two independent active-low output-enable pins: 1OE (pin 1) controls the four buffers in Bank 1 (1A1–1A4 → 1Y1–1Y4), while 2OE (pin 15) controls the two buffers in Bank 2 (2A1/2A2 → 2Y1/2Y2). This allows simultaneous or staggered 3-state control of distinct signal groups - critical for bus arbitration and multi-peripheral sharing.
Can unused inputs on the SN74HC367NSR be left floating?
No - all unused inputs on the SN74HC367NSR must be tied to VCC or GND. Floating CMOS inputs cause increased ICC, noise susceptibility, and potential oscillation due to undefined threshold crossing. TI explicitly mandates this in Section 5.2 Note 1 and Section 9.1 of the SCLS309E datasheet to ensure stable device operation.
What is the recommended bypass capacitor for the SN74HC367NSR?
Texas Instruments recommends a 0.1 µF ceramic capacitor placed as close as possible to the VCC pin (pin 16) of the SN74HC367NSR to suppress high-frequency supply noise. For enhanced noise rejection across broader frequencies, paralleling with a 1 µF capacitor is acceptable - per TI's Power Supply Recommendations in Section 8 of the SCLS309E datasheet.
SN74HC367NSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 2, 4 (Hex)
- 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
SN74HC367NSR FAQ
1.How can I place an order for SN74HC367NSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC367NSR 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 SN74HC367NSR reliable?
The price and inventory of SN74HC367NSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC367NSR is usually 5 days.
3.What payment methods are accepted for SN74HC367NSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC367NSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC367NSR?
SN74HC367NSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC367NSR 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 SN74HC367NSR?
For technical support, including SN74HC367NSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC367NSR requirements.
6.How does Aetrix verify that SN74HC367NSR is sourced from the original manufacturer or authorized distributors?
All SN74HC367NSR 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 SN74HC367NSR meets industry standards.
7.What is the process for return or replacement of SN74HC367NSR?
All SN74HC367NSR units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC367NSR, 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 SN74HC367NSR part is unused and in its original packaging.
Return procedure for SN74HC367NSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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