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Texas Instruments SN74AHCT367DBR
- Part No.:
- SN74AHCT367DBR
- Manufacturer:
- Texas Instruments
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
SN74AHCT367DBR.pdf
- Description:
- IC BUF NON-INVERT 5.5V 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,808
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Product details
Overview
SN74AHCT367DBR from Texas Instruments is a hex buffer and line driver with 3-state outputs, designed for bus-oriented receivers and transmitters in 5-V systems. It features dual 4-line/2-line configuration, TTL-compatible inputs (VIH = 2 V, VIL = 0.8 V), ±8 mA output drive, and operates across –40°C to 125°C. It enables level translation from 3.3-V logic to 5-V buses in telecom infrastructure and network switches.
For engineers reviewing the SN74AHCT367DBR datasheet, SN74AHCT367DBR pinout, SN74AHCT367DBR application, or SN74AHCT367DBR equivalent, this page delivers verified electrical specs, SSOP-16 package details, functional mode behavior, real-world layout guidance, and validated alternative options for bus interface design.
Technical Context
The SN74AHCT367DBR implements two independent 3-state buffer groups: one with four noninverting channels (1A1–1A4 → 1Y1–1Y4) and another with two (2A1–2A2 → 2Y1–2Y2), each controlled by active-low OE pins (1OE, 2OE). Its CMOS architecture ensures low static current (ICC ≤ 40 µA) while maintaining TTL input thresholds for seamless interfacing with legacy logic.
Propagation delays are tightly specified: tPLH/tPHL ≤ 8.5 ns (CL = 15 pF), tPZH/tPHZ ≤ 9.5 ns, supporting reliable timing in high-density memory address and clock distribution paths. Input transition rate limit (20 ns/V) and slow edge rates suppress output ringing on lightly loaded PCB traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 4.5 V to 5.5 V - Ensures compatibility with standard 5-V logic rails and tolerance to supply ripple. |
| IOH/IOL Drive | ±8 mA - Sufficient for driving multiple TTL loads or short PCB traces without external buffering. |
| tPLH/tPHL | ≤ 8.5 ns @ CL = 15 pF - Enables use in sub-100-MHz address/data bus timing budgets. |
| VIH/VIL Thresholds | 2.0 V / 0.8 V - Guarantees reliable recognition of 3.3-V logic highs/lows when translating to 5-V domains. |
| Operating Temp | –40°C to +125°C - Qualified for industrial and automotive under-hood applications requiring extended thermal range. |
| ESD Rating | ±2000 V HBM - Meets JEDEC JS-001 for robust handling in automated assembly environments. |
| ICC Quiescent | ≤ 40 µA - Minimizes standby power in always-on bus monitoring or hot-swap controller circuits. |
Pinout & Package
SN74AHCT367DBR uses a 16-pin SSOP (Shrink Small Outline Package) with body size 6.2 mm × 5.30 mm and overall footprint 6.2 mm × 7.8 mm. Pin 1 is marked via corner chamfer and located in Quadrant Q1 per tape-and-reel specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output enable controls group 1 (pins 2–9) and group 2 (pins 11–14); tie high via pull-up for power-up high-Z safety. |
| 2, 4, 6, 10 | 1A1–1A4, 2A1–2A2 | Noninverting input terminals accepting TTL-level signals; VI = 0 to 5.5 V tolerant. |
| 3, 5, 7, 9, 11, 13 | 1Y1–1Y4, 2Y1–2Y2 | True 3-state outputs; high-impedance when OE = high; drive ±8 mA when enabled. |
| 8, 16 | GND, VCC | Power reference and supply pins; requires local 0.1-µF ceramic bypass capacitor at VCC–GND per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Accepts 3.3-V logic levels directly (VIH = 2 V min) - eliminates need for discrete level-shifting resistors in mixed-voltage systems. |
| Slow edge rate control | Δt/Δv = 20 ns/V - Reduces EMI and overshoot on unterminated traces, critical for noise-sensitive telecom and set-top box designs. |
| High-impedance fail-safe | OE tied to VCC via pull-up ensures outputs remain disabled during power ramp-up - prevents bus contention at startup. |
| Low ICC variation | ΔICC ≤ 1.5 mA per toggling input - simplifies power rail decoupling and avoids dynamic voltage droop in dense logic arrays. |
| Overvoltage-tolerant inputs | VI up to 5.5 V allowed regardless of VCC - supports hot-plug detection and mixed-supply debugging without clamping diodes. |
Applications
| Telecom Infrastructure | Network Switches |
|---|---|
Use Scenario: Address/data bus isolation between FPGA-based control plane and ASIC-based packet forwarding engines. IC Role / Device Role / Timing Role: 3-state buffer isolating bidirectional memory-mapped registers while enabling synchronous read/write arbitration. Use Value: Prevents bus contention during firmware updates; ±8 mA drive sustains signal integrity over 10-cm FR4 traces at 50 MHz. |
Use Scenario: Level translation between 3.3-V management MCU and 5-V PHY register interface. IC Role / Device Role / Timing Role: Unidirectional voltage translator with guaranteed 2-V VIH threshold ensuring reliable register access under voltage droop. Use Value: Eliminates external resistor dividers; 8.5-ns propagation delay aligns with 100-MHz I²C/SMBus timing margins. |
| TVs | Electronic Points of Sale |
Use Scenario: Driving LED segment displays and IR remote receiver buffers in mainboard subsystems. IC Role / Device Role / Timing Role: Low-power bus driver enabling shared GPIO expansion for display multiplexing and sensor polling. Use Value: 40-µA ICC allows always-on status indication; –40°C to 125°C rating covers internal chassis temperature extremes. |
Use Scenario: Isolating payment terminal keypad scan lines from main processor to prevent ESD coupling into secure elements. IC Role / Device Role / Timing Role: ESD-hardened buffer (2000-V HBM) providing galvanic separation between user interface and crypto module. Use Value: ±2000-V CDM rating protects against assembly-line discharge; 3-state control enables dynamic scan-line power gating. |
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 |
|---|---|---|---|
| SN74AHCT244DBR | Octal (8-channel) vs. hex (6-channel); identical VCC, VIH/VIL, and drive strength; same SSOP-20 package. | Requires PCB redesign due to different pin count and layout; better suited for wider data buses needing full byte-width buffering. | Select when expanding from 6- to 8-bit parallel interfaces; verify trace length matching for skew-sensitive applications. |
| 74LVC244APW,118 | 3.3-V only operation (VCC = 1.65–3.6 V); lower drive (±24 mA); LVTTL-compatible (VIH = 2.0 V @ VCC = 3.3 V). | Not suitable for 5-V bus translation; optimized for low-voltage portable devices where power efficiency outweighs voltage flexibility. | Choose only for 3.3-V-only systems; avoid in mixed-voltage designs requiring 3.3-V-to-5-V translation capability. |
Compared with SN74AHCT244DBR and 74LVC244APW,118, the SN74AHCT367DBR uniquely balances 5-V bus compatibility, TTL input acceptance, and compact 16-pin SSOP packaging-making it optimal for space-constrained industrial controllers needing deterministic 3-state control without voltage translation overhead.
Availability
SN74AHCT367DBR is available at Aetrix Electronics and suitable for telecom infrastructure, network switches, and electronic points of sale requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74AHCT367DBR 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 experience in high-reliability industrial and communications ICs.
The SN74AHCT367DBR belongs to TI's AHCT logic family, engineered for 5-V systems requiring TTL-compatible interfacing, robust ESD immunity, and precise 3-state timing-targeting memory address drivers, clock distribution, and bus transceivers.
FAQ
What is the maximum output current per channel for SN74AHCT367DBR?
The SN74AHCT367DBR supports ±8 mA per output channel under recommended operating conditions (VCC = 4.5 V to 5.5 V, TA = –40°C to 125°C). This value is specified in the Electrical Characteristics table for IOH and IOL, ensuring safe drive into standard TTL loads without exceeding absolute maximum ratings of ±25 mA per output.
Does SN74AHCT367DBR support 3.3-V input logic levels?
Yes, SN74AHCT367DBR accepts 3.3-V logic levels reliably: its VIH minimum is 2.0 V and VIL maximum is 0.8 V, both compatible with typical 3.3-V CMOS/TTL outputs. This enables direct connection to 3.3-V microcontrollers or FPGAs driving a 5-V bus, fulfilling its design role as a level translator.
What package type is used by SN74AHCT367DBR?
SN74AHCT367DBR uses a 16-pin SSOP (Shrink Small Outline Package) with drawing code DB, body dimensions 6.2 mm × 5.30 mm, and overall footprint 6.2 mm × 7.8 mm. It is supplied in tape-and-reel format (2000 units/reel) with MSL Level-1 rating and NIPDAU lead finish.
How does SN74AHCT367DBR handle power-up sequencing?
SN74AHCT367DBR ensures safe power-up via its active-low OE pins: tying 1OE and 2OE to VCC through pull-up resistors forces outputs into high-impedance state until system logic asserts valid control signals. This prevents bus contention during VCC ramp-up, a key requirement documented in Section 7.1 of the datasheet.
Is SN74AHCT367DBR suitable for automotive applications?
SN74AHCT367DBR is qualified for operation from –40°C to +125°C and meets JESD 78 Class II latch-up immunity (>100 mA) and JESD 22 ESD ratings (±2000 V HBM/CDM), satisfying core stress requirements for under-hood and infotainment modules. However, it is not AEC-Q100 qualified; for automotive-grade use, consult TI's specific AEC-Q100-certified variants.
SN74AHCT367DBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHCT
- Package/Case:
- 16-SSOP (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:
- 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-SSOP
SN74AHCT367DBR FAQ
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Please submit a Request for Quotation (RFQ) for SN74AHCT367DBR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of SN74AHCT367DBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHCT367DBR is usually 5 days.
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Once your SN74AHCT367DBR 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 SN74AHCT367DBR?
For technical support, including SN74AHCT367DBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHCT367DBR requirements.
6.How does Aetrix verify that SN74AHCT367DBR is sourced from the original manufacturer or authorized distributors?
All SN74AHCT367DBR 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 SN74AHCT367DBR meets industry standards.
7.What is the process for return or replacement of SN74AHCT367DBR?
All SN74AHCT367DBR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHCT367DBR, 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 SN74AHCT367DBR part is unused and in its original packaging.
Return procedure for SN74AHCT367DBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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