Texas Instruments SN74LV367ADBR

Overview

SN74LV367ADBR from Texas Instruments is a hex noninverting buffer/line driver with 3-state outputs, designed for bus-oriented applications including memory address driving and clock distribution. It operates from 2 V to 5.5 V, delivers ≤7 ns propagation delay at 5 V, supports mixed-mode voltage translation, and features balanced CMOS push-pull and 3-state outputs for LED matrix and 7-segment display control.

For engineers reviewing the SN74LV367ADBR datasheet, SN74LV367ADBR pinout, SN74LV367ADBR application, or SN74LV367ADBR equivalent, this page provides verified functional modes, real-world timing behavior under 15 pF and 50 pF loads, confirmed 3-state enable/disable timing, absolute maximum ratings, and validated alternative options for low-voltage bus expansion designs.

Technical Context

The SN74LV367ADBR implements dual independent 3-state buffer groups (Group 1: pins 1–7,9–10; Group 2: pins 11–15), each controlled by an active-low output-enable input (1OE, 2OE). Its logic diagram confirms noninverting signal path from A inputs to Y outputs, with high-impedance state asserted when OE is high.

It integrates partial power-down (Ioff) protection enabling safe operation during supply sequencing, clamp diodes on all I/Os for ESD robustness (±2000 V HBM), and balanced drive capability-sourcing/sinking up to ±16 mA at 5 V while maintaining VOL ≤ 0.55 V and VOH ≥ 3.8 V under load.

Key Specifications

Pinout & Package

SN74LV367ADBR is supplied in the TVSOP-16 (DGV) package, measuring 3.60 mm × 4.40 mm with 0.5 mm pitch, optimized for high-density PCB layouts and automated surface-mount assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer with 3-state output applications.

Compared with SN74LV367ADBR, SN74LVC367A offers superior speed and drive at lower voltage but sacrifices 5 V interoperability, while 74LVX367M reduces static power at the cost of maximum supply voltage-making SN74LV367ADBR the optimal choice for mixed-voltage industrial bus expansion.

Availability

SN74LV367ADBR is available at Aetrix Electronics and suitable for LED matrix control, 7-segment display interfaces, and microcontroller bus expansion requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for SN74LV367ADBR 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 SN74LV367ADBR belongs to TI's LV logic family, engineered for low-voltage, high-noise-immunity bus interfacing in space-constrained and thermally demanding applications.

FAQ

What is the recommended pull-up resistor value for OE pins on SN74LV367ADBR?

TI recommends tying 1OE and 2OE to VCC through a pull-up resistor to ensure high-impedance state during power-up. The minimum resistor value depends on the driver's current-sinking capability; a 10-kΩ resistor is typically sufficient to guarantee reliable disable while limiting current to <500 µA, consistent with SN74LV367ADBR's Ioff specification and thermal limits.

Does SN74LV367ADBR support 5 V input signals when powered at 3.3 V?

Yes, SN74LV367ADBR features 5 V-tolerant inputs-its VIH and VIL thresholds scale with VCC, and inputs accept up to 5.5 V regardless of supply voltage. When VCC = 3.3 V, SN74LV367ADBR reliably interprets 5 V logic-high signals without damage or level-shifting circuitry, making it ideal for interfacing legacy 5 V peripherals with modern 3.3 V microcontrollers.

What is the maximum capacitive load SN74LV367ADBR can drive while maintaining specified tpd?

SN74LV367ADBR's switching characteristics are characterized for CL = 15 pF and CL = 50 pF. At VCC = 5 V, tpd remains ≤7 ns for 15 pF and ≤9 ns for 50 pF. Driving loads beyond 50 pF increases propagation delay nonlinearly and may induce ringing; TI recommends limiting trace capacitance and using series termination if driving >50 pF to preserve signal integrity and timing margins.

How does SN74LV367ADBR handle power sequencing in systems with multiple supply rails?

SN74LV367ADBR incorporates Ioff circuitry that disables all outputs when VCC = 0 V, limiting Ioff leakage to <5 µA per pin. This feature enables safe hot-plug operation and prevents back-powering or contention during asymmetric power-up/down sequences-critical in modular systems where VCC may ramp independently of other rails or I/O voltages.

Can unused inputs on SN74LV367ADBR be left floating?

No-TI explicitly requires all unused inputs of SN74LV367ADBR to be tied to VCC or GND to prevent undefined logic states, increased ICC, and potential oscillation. Floating inputs cause excessive current draw and noise susceptibility due to CMOS threshold ambiguity; connecting them to a valid logic level ensures predictable operation and complies with the device's Recommended Operating Conditions.