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Texas Instruments SN74AHCT367NSR
- Part No.:
- SN74AHCT367NSR
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SN74AHCT367NSR.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,810
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Product details
Overview
SN74AHCT367 from Texas Instruments is a hex buffer and line driver IC with dual 3-state output enable control, designed for memory address, clock, and bus-oriented applications. It features TTL-voltage-compatible inputs (VIH = 2 V, VIL = 0.8 V), true (non-inverting) outputs, ±25 mA output drive per channel, and operation across –40°C to +125°C at 4.5–5.5 V supply. It enables 3.3 V-to-5 V logic translation in telecom infrastructure and network switches.
For engineers reviewing the SN74AHCT367 datasheet, SN74AHCT367 pinout, SN74AHCT367 application, or SN74AHCT367 equivalent, this page delivers verified functional modes, switching characteristics (tPLH/tPHL ≤ 8.5 ns @ 50 pF), thermal metrics (RθJA = 103.9°C/W for DB package), ESD robustness (±2000 V HBM/CDM), and precise pin-level circuit role mapping - all critical for bus interface design, signal integrity validation, and industrial-grade layout planning.
Technical Context
The SN74AHCT367 implements two independent 3-state buffer groups: one 4-channel (1A1–1A4 → 1Y1–1Y4, controlled by 1OE) and one 2-channel (2A1–2A2 → 2Y1–2Y2, controlled by 2OE). Each output exhibits balanced CMOS drive with slow edge rates (Δt/Δv ≤ 20 ns/V) to suppress ringing on light-loaded buses.
Its input structure accepts TTL-level signals while operating from a 5 V supply, enabling seamless interfacing between legacy 3.3 V microcontrollers and 5 V peripheral buses. The device enters high-impedance state when either OE is high, and requires external pull-up on OE during power sequencing to ensure defined startup behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V logic rails and tolerance to supply ripple. |
| VIH / VIL | 2.0 V / 0.8 V - guarantees reliable recognition of TTL-level inputs from 3.3 V systems without level shifters. |
| IOL / IOH | ±8 mA - supports direct driving of multiple CMOS loads or moderate-current indicators without external buffers. |
| tPLH / tPHL | ≤ 8.5 ns @ CL = 50 pF - enables use in sub-100 MHz bus timing budgets with margin for trace delays. |
| ESD Rating | ±2000 V HBM & CDM - meets JEDEC JESD22-A114/JESD22-C101 for robust handling in manufacturing and field environments. |
| Operating Temp | –40°C to +125°C - qualified for extended-temperature industrial and telecom infrastructure deployments. |
| ICC (Quiescent) | ≤ 40 µA - minimizes standby power in always-on bus driver applications. |
Pinout & Package
SN74AHCT367 is available in multiple 16-pin surface-mount packages: SOIC (D), SSOP (DB), TVSOP (DGV), and TSSOP (PW). The SSOP (DB) variant measures 6.2 mm × 7.8 mm (body: 6.2 mm × 5.30 mm) and is lead-free, RoHS-compliant, and MSL Level-1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output enable controls for Group 1 (4 channels) and Group 2 (2 channels); must be pulled high via resistor for safe power-up. |
| 2, 4, 6, 10 | 1A1–1A4 | Non-inverting input pins for Group 1; accept TTL-compatible logic levels and tolerate up to 5.5 V. |
| 3, 5, 7, 9 | 1Y1–1Y4 | True (non-inverting) 3-state outputs for Group 1; sink/source ±25 mA max, high-Z when OE high. |
| 12, 14 | 2A1, 2A2 | Non-inverting inputs for Group 2; electrically identical to Group 1 inputs. |
| 11, 13 | 2Y1, 2Y2 | True 3-state outputs for Group 2; share same drive strength and timing specs as Group 1 outputs. |
| 8 | GND | Ground reference for all I/O and internal logic; requires low-impedance PCB connection to minimize noise coupling. |
| 16 | VCC | 5 V power supply pin; requires local 0.1 µF ceramic bypass capacitor placed adjacent to pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Voltage Compatibility | Inputs recognize 2 V VIH and 0.8 V VIL thresholds - eliminates need for external level translators when interfacing with 3.3 V MCU GPIOs. |
| Controlled Edge Rates | Δt/Δv ≤ 20 ns/V limits overshoot/undershoot on unterminated transmission lines - critical for clean signal integrity in compact PCB layouts. |
| High-Current 3-State Outputs | ±25 mA continuous per output supports driving multiple downstream CMOS inputs or LEDs directly - reduces BOM count in bus repeater designs. |
| Latch-Up Immunity | Exceeds 100 mA per JESD78 Class II - ensures robust operation under transient overvoltage or ground bounce conditions in noisy industrial environments. |
Applications
| Telecom Infrastructure | Network Switches |
|---|---|
Use Scenario: Driving address/data buses between 3.3 V baseband processors and 5 V PHY interface ICs in cellular base station control modules. IC Role / Device Role: Level-translating bus buffer with 3-state isolation to prevent contention during hot-swap or firmware update sequences. Use Value: Enables interoperability without discrete level shifters while maintaining <8.5 ns propagation delay for synchronous bus timing compliance. | Use Scenario: Isolating management bus lines (e.g., SMBus, MDIO) between 3.3 V switch controller SoCs and 5 V transceiver banks. IC Role / Device Role: Dual-group 3-state driver allowing independent enable/disable of control vs. status signal paths. Use Value: Prevents bus lockup during partial reconfiguration by decoupling signal groups with separate OE pins. |
| Electronic Points of Sale | Set Top Boxes |
Use Scenario: Buffering GPIO expansion lines from 3.3 V ARM-based payment terminal controllers to 5 V display backlight drivers and keypad scan matrices. IC Role / Device Role: Low-power hex buffer providing TTL-compatible input sensitivity and ±25 mA drive capability per channel. Use Value: Reduces system-level power consumption versus discrete transistor solutions while supporting wide-temp operation (–40°C to +125°C). | Use Scenario: Interfacing HDMI CEC or IR receiver outputs from 3.3 V media processors to 5 V legacy tuner modules and front-panel displays. IC Role / Device Role: True-output line driver with slow-edge control to meet FCC radiated emissions limits for consumer audio/video equipment. Use Value: Eliminates need for external RC damping networks - simplifies layout and improves EMI performance in space-constrained enclosures. |
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 |
|---|---|---|---|
| SN74AHCT244N | Octal (8-channel) non-inverting buffer; identical voltage specs, timing, and ESD rating but larger pin count (20-pin PDIP/SOIC). | Requires PCB redesign for pin count and layout; suited for higher-channel-count bus extensions where SN74AHCT367's 6-channel capacity is insufficient. | Select when system needs ≥8 buffered lines and board area allows 20-pin footprint. |
| 74LVC244APW | 3.3 V-only supply (1.65–3.6 V); lower drive (±24 mA), faster propagation (≤ 5.6 ns), but incompatible with 5 V buses. | Cannot translate to 5 V peripherals; limited to 3.3 V-only domains; unsuitable for mixed-voltage backplanes. | Choose only for pure 3.3 V systems requiring lower power and higher speed - not a drop-in replacement for SN74AHCT367. |
Compared with SN74AHCT244N and 74LVC244APW, the SN74AHCT367 uniquely balances 6-channel density, 5 V bus compatibility, TTL input tolerance, and controlled edge rates - making it optimal for space-constrained, mixed-voltage telecom and networking interfaces where pin efficiency and signal integrity are co-prioritized.
Availability
SN74AHCT367 is available at Aetrix Electronics and suitable for telecom infrastructure, network switches, and electronic points of sale requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for SN74AHCT367 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 SN74AHCT367 belongs to TI's advanced high-speed CMOS logic family, engineered specifically to improve performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in mixed-voltage systems.
FAQ
What is the recommended power supply bypassing for SN74AHCT367?
A 0.1 µF ceramic capacitor must be placed as close as possible to the VCC pin (Pin 16) and GND (Pin 8) to suppress high-frequency noise and ensure stable switching behavior. This requirement is explicitly validated in TI's layout guidelines for the SN74AHCT367 and applies across all package variants including DB, DGV, and PW.
Does SN74AHCT367 support 3.3 V input signals when powered at 5 V?
Yes, the SN74AHCT367 accepts TTL-compatible input levels: VIH = 2.0 V minimum and VIL = 0.8 V maximum. When VCC = 5 V, it reliably interprets 3.3 V logic-high signals as valid high inputs - enabling direct 3.3 V-to-5 V translation without external level shifters.
How does the dual output-enable architecture of SN74AHCT367 benefit system design?
The SN74AHCT367 provides two independent active-low output enables (1OE and 2OE), allowing selective 3-state control of its 4-channel and 2-channel buffer groups. This enables dynamic bus partitioning - for example, isolating control lines while keeping status lines active - reducing contention risk in multi-master systems.
What is the maximum capacitive load SN74AHCT367 can drive while maintaining specified timing?
The SN74AHCT367 is characterized for CL = 15 pF and CL = 50 pF loads. At 50 pF, tPLH/tPHL is guaranteed ≤ 9.5 ns over –40°C to +125°C. Driving >50 pF may increase propagation delay beyond spec and exacerbate ringing - layout best practices recommend minimizing trace capacitance and using series termination if needed.
Is SN74AHCT367 suitable for automotive applications?
No - the SN74AHCT367 is not AEC-Q100 qualified and lacks automotive-grade screening, temperature derating, or failure-in-time (FIT) data. Its –40°C to +125°C operating range supports industrial environments, but TI does not certify it for automotive safety-critical or chassis-mounted use cases.
SN74AHCT367NSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHCT
- Package/Case:
- 16-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
SN74AHCT367NSR FAQ
1.How can I place an order for SN74AHCT367NSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHCT367NSR 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 SN74AHCT367NSR reliable?
The price and inventory of SN74AHCT367NSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHCT367NSR is usually 5 days.
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Once your SN74AHCT367NSR 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 SN74AHCT367NSR?
For technical support, including SN74AHCT367NSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHCT367NSR requirements.
6.How does Aetrix verify that SN74AHCT367NSR is sourced from the original manufacturer or authorized distributors?
All SN74AHCT367NSR 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 SN74AHCT367NSR meets industry standards.
7.What is the process for return or replacement of SN74AHCT367NSR?
All SN74AHCT367NSR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHCT367NSR, 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 SN74AHCT367NSR part is unused and in its original packaging.
Return procedure for SN74AHCT367NSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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