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Texas Instruments SN74AHC367DR
- Part No.:
- SN74AHC367DR
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN74AHC367DR.pdf
- Description:
- IC BUF NON-INVERT 5.5V 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
SN74AHC367DR from Texas Instruments is a hex noninverting buffer/line driver with 3-state outputs, designed for 2V–5.5V operation in bus interface and signal routing applications. It features dual independent output-enable controls (1OE, 2OE), ±8 mA drive strength at 5 V, 7 ns typical propagation delay (CL = 15 pF, VCC = 5 V), and operates across –40°C to +85°C.
For engineers reviewing the SN74AHC367DR datasheet, SN74AHC367DR pinout, SN74AHC367DR application, or SN74AHC367DR equivalent, key selection criteria include 3-state bus driving capability, wide supply voltage range, low power consumption (4 µA ICC max), ESD robustness (±2000 V HBM), and SOIC-16 package compatibility with industrial control and embedded I/O expansion designs.
Technical Context
The SN74AHC367DR implements six independent noninverting buffers grouped as two functional blocks: three buffers per side (1A1–1Y3 and 2A1–2Y2), each controlled by its own active-low output-enable input (1OE, 2OE). Each buffer drives one output from one input with no inversion, enabling simultaneous enable/disable of subsets of lines.
Its 3-state logic supports bidirectional bus contention management and dynamic load isolation. Input thresholds scale with VCC (VIH = 0.7×VCC min, VIL = 0.3×VCC max), ensuring reliable TTL- and CMOS-compatible interfacing across the full 2V–5.5V supply range without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - Enables direct interfacing between 2.5 V, 3.3 V, and 5 V logic domains without external level shifters. |
| IOH/IOL Drive | –8 mA / +8 mA at 5 V - Sufficient to drive standard CMOS loads (e.g., ≥10 74AHC inputs) or small LEDs directly. |
| tPLH/tPHL | 3.4 ns min / 7 ns max (CL = 15 pF, VCC = 5 V) - Supports >100 MHz bus toggle rates in short-trace, low-capacitance configurations. |
| ICC Quiescent Current | 4 µA max at 5.5 V - Enables use in always-on monitoring circuits with minimal standby power impact. |
| ESD Rating | ±2000 V HBM - Meets industrial handling requirements without additional protection circuitry on board. |
| Operating Temperature | –40°C to +85°C - Qualified for extended-temperature industrial environments including motor control and PLC I/O modules. |
| Input Thresholds | VIH = 3.85 V min, VIL = 1.65 V max at VCC = 5.5 V - Ensures noise margins >0.8 V under worst-case supply and temperature conditions. |
Pinout & Package
SN74AHC367DR is supplied in a 16-pin SOIC (D) package measuring 9.9 mm × 6.0 mm (body: 9.9 mm × 3.9 mm), RoHS-compliant with NIPDAU lead finish and moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output-enable inputs - Independently disable Y1–Y3 or Y1–Y2 outputs to high-impedance state; tie to VCC via pullup for power-up safety. |
| 2, 4, 6, 10, 12, 14 | 1A1–1A4, 2A1–2A2 | Buffer input terminals - Accept CMOS/TTL logic levels; all unused inputs must be tied to VCC or GND to prevent floating-induced current leakage. |
| 3, 5, 7, 9, 11, 13 | 1Y1–1Y4, 2Y1–2Y2 | Noninverting 3-state outputs - Deliver buffered A-input signals when OE is low; present high-Z state when OE is high for bus sharing. |
| 8 | GND | Ground reference - Must be connected to system ground plane with low-inductance path to minimize switching noise coupling. |
| 16 | VCC | Power supply - Requires local 0.1 µF ceramic bypass capacitor placed within 3 mm of pin to suppress supply transients during output transitions. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state control | Separate 1OE and 2OE pins allow selective disabling of first three or last two outputs - critical for partial-bus arbitration in multi-master systems. |
| Voltage-tolerant input thresholds | VIH/VIL scale linearly with VCC (0.7×/0.3×) - eliminates need for external biasing when interfacing mixed-voltage peripherals (e.g., 3.3 V MCU to 5 V sensor). |
| Low dynamic power dissipation | Cpd = 22.4 pF - Reduces switching current demand and heat generation in high-frequency clock distribution or address bus applications. |
| High noise immunity | VIL(D) = 1.5 V, VIH(D) = 3.5 V at 3.3 V supply - provides >1.0 V noise margin against fast-edge crosstalk in dense PCB layouts. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II - ensures robust operation in noisy industrial environments with transient ground shifts or EFT bursts. |
Applications
| Industrial Bus Interface | Motor Controller Reset Logic |
|---|---|
|
Use Scenario: Isolating and buffering address/data lines between an FPGA and multiple peripheral ICs on a shared 16-bit parallel bus. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing direction-controlled signal pass-through with sub-10 ns propagation delay and bus contention prevention. Use Value: Enables hot-plug-capable peripheral expansion without signal integrity degradation or timing skew across 16 lines. |
Use Scenario: Combining four independent fault signals (over-temperature, over-current, power-good, watchdog timeout) into a single active-low reset for a BLDC motor controller IC. IC Role / Device Role / Timing Role: Logic-level translator and wired-OR gate replacement - each input drives one buffer; outputs tied together with pullup generate composite reset. Use Value: Eliminates discrete diode-OR network, reduces BOM count by 7 components, and guarantees synchronized deassertion timing (<1 ns skew). |
| LED Indicator Driver | Communication Module Translator |
|
Use Scenario: Driving eight status LEDs (e.g., CAN bus activity, error flags, mode indicators) from a microcontroller GPIO port with limited sink/source current. IC Role / Device Role / Timing Role: Current-boosting buffer - converts weak MCU outputs (±4 mA) into ±8 mA capable of directly illuminating standard 20 mA LEDs at full brightness. Use Value: Removes need for external transistor drivers, saves PCB area, and maintains consistent LED intensity across varying supply voltages (2–5.5 V). |
Use Scenario: Level-shifting and buffering UART/RS-232 control signals (RTS, CTS, DTR) between a 3.3 V host processor and legacy 5 V modem module. IC Role / Device Role / Timing Role: Bidirectional voltage-domain translator - leverages rail-to-rail input thresholds and 5 V tolerant outputs to bridge logic families without direction control. Use Value: Achieves interoperability without dedicated level-shifters, reduces signal path latency to <7 ns, and avoids timing jitter introduced by open-drain translators. |
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 |
|---|---|---|---|
| SN74AHCT367DR | CMOS input with TTL-compatible thresholds (VIH = 2.0 V min at 5 V); identical pinout and drive strength. | Better suited for legacy 5 V TTL systems where input noise immunity is less critical than guaranteed recognition of 3.3 V logic highs. | Select when interfacing with older 5 V microcontrollers lacking strong output drive or precise 3.3 V logic levels. |
| SN74LVC367APWR | Lower VCC range (1.65–3.6 V), higher speed (tPD = 4.2 ns @ 3.3 V), TSSOP-16 package (5.0 × 6.4 mm). | Optimized for space-constrained 3.3 V-only designs; not compatible with 5 V buses or mixed-voltage interfaces. | Choose for compact, low-voltage embedded systems where 5 V tolerance is unnecessary and PCB real estate is premium. |
Compared with SN74AHCT367DR and SN74LVC367APWR, the SN74AHC367DR uniquely balances wide-supply flexibility (2–5.5 V), industrial-grade ESD and latch-up performance, and SOIC-16 manufacturability - making it the default choice for general-purpose bus buffering in mixed-voltage industrial control hardware.
Availability
SN74AHC367DR is available at Aetrix Electronics and suitable for industrial bus interface, motor controller reset logic, LED indicator driving, and communication module translation requiring stable component supply and long-term production continuity.
Supply support for SN74AHC367DR 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 SN74AHC367DR belongs to TI's advanced high-speed CMOS (AHC) logic family, engineered for low-power, high-noise-immunity digital interfacing in harsh industrial environments where reliability and voltage flexibility are critical.
FAQ
What is the maximum capacitive load the SN74AHC367DR can drive while maintaining specified timing?
The SN74AHC367DR is characterized for CL = 15 pF and CL = 50 pF loads in its switching specifications. At 5 V supply, tPLH/tPHL remains within 7 ns (max) up to 50 pF. For loads exceeding 50 pF, propagation delay increases linearly - e.g., ~10 ns at 100 pF - but the SN74AHC367DR remains functional. Layout best practices (short traces, ground plane) are essential to avoid ringing or overshoot.
Can the SN74AHC367DR be used with a 2.5 V supply, and what are the resulting input thresholds?
Yes, the SN74AHC367DR operates down to 2 V. At VCC = 2.5 V, VIH(min) = 1.75 V and VIL(max) = 0.75 V per the recommended operating conditions table. This provides 0.75 V noise margin for both high and low states, supporting reliable interfacing with 2.5 V FPGAs and ASICs without external biasing.
How should unused inputs on the SN74AHC367DR be handled to prevent malfunction?
All unused inputs on the SN74AHC367DR must be terminated to a valid logic level - either VCC or GND - using a direct connection or pullup/pulldown resistor. Floating inputs cause increased ICC, unpredictable output states, and potential device heating. The datasheet explicitly requires this for proper operation; leaving any input unconnected violates recommended practice.
Is the SN74AHC367DR pin-compatible with the SN74LS367?
No, the SN74AHC367DR is not pin-compatible with the obsolete SN74LS367. While both are hex buffers with 3-state outputs, the LS version uses different pin assignments (e.g., OE placement, output grouping) and lacks the dual-OE architecture of the AHC367. Direct replacement would require PCB redesign and logic-level validation due to differing electrical characteristics and timing behavior.
Does the SN74AHC367DR support hot-swap insertion on a live bus?
The SN74AHC367DR supports hot-swap operation only when powered before connection - its absolute maximum ratings allow VI up to 7 V regardless of VCC state, and the 3-state outputs prevent back-driving. However, TI does not guarantee bus-fault immunity during live insertion; external series resistors (e.g., 33 Ω) on outputs are recommended to limit inrush current and protect downstream devices during plug-in events.
SN74AHC367DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SN74AHC367DR FAQ
1.How can I place an order for SN74AHC367DR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC367DR 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 SN74AHC367DR reliable?
The price and inventory of SN74AHC367DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC367DR is usually 5 days.
3.What payment methods are accepted for SN74AHC367DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHC367DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHC367DR?
SN74AHC367DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHC367DR 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 SN74AHC367DR?
For technical support, including SN74AHC367DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC367DR requirements.
6.How does Aetrix verify that SN74AHC367DR is sourced from the original manufacturer or authorized distributors?
All SN74AHC367DR 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 SN74AHC367DR meets industry standards.
7.What is the process for return or replacement of SN74AHC367DR?
All SN74AHC367DR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC367DR, 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 SN74AHC367DR part is unused and in its original packaging.
Return procedure for SN74AHC367DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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