Texas Instruments SN74LV367APWR

Overview

SN74LV367APWR from Texas Instruments is a hex noninverting buffer/line driver with 3-state outputs, designed for 2 V to 5.5 V operation. It features dual output-enable controls (1OE, 2OE), 7 ns max propagation delay at 5 V, ±35 mA output drive, and mixed-mode voltage interface capability - enabling use in LED matrix control, 7-segment display drivers, and bus expansion circuits.

For engineers reviewing the SN74LV367APWR datasheet, SN74LV367APWR pinout, SN74LV367APWR application, or SN74LV367APWR equivalent, key selection considerations include its 16-pin TSSOP package, 3-state output timing (ten/tdis ≤ 10.5 ns at 5 V), 5.5 V-tolerant inputs, and Ioff partial power-down support for hot-swap compatibility.

Technical Context

The SN74LV367APWR implements dual independent 3-state buffer groups: one 4-line (1A1–1A4 → 1Y1–1Y4) and one 2-line (2A1–2A2 → 2Y1–2Y2), each controlled by dedicated active-low OE pins. Its balanced CMOS push-pull outputs deliver symmetrical sourcing/sinking capability up to ±35 mA per channel while maintaining rail-to-rail VOH/VOL performance across 2 V–5.5 V supply range.

It supports mixed-voltage interfacing - e.g., 5 V-tolerant inputs operating with 3.3 V VCC - and includes Ioff protection that disables all outputs when VCC = 0 V, limiting leakage to ≤5 µA. Ground bounce (VOLP < 0.8 V) and undershoot (VOHV > 2.3 V) are characterized at 3.3 V, confirming robust signal integrity in high-speed digital systems.

Key Specifications

Pinout & Package

TSSOP-16 (PW) package: 5.00 mm × 4.40 mm body, 0.65 mm pitch, 1.2 mm max height, RoHS-compliant NIPDAU/SN lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer/line driver applications.

Compared with SN74HC367N, the SN74LV367APWR delivers faster timing and robust mixed-voltage operation; versus SN74LVC367APW, it trades minor power savings for broader VCC range and identical industrial temperature qualification.

Availability

SN74LV367APWR is available at Aetrix Electronics and suitable for LED matrix control, 7-segment display drivers, and memory address expansion requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for SN74LV367APWR 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 SN74LV367APWR belongs to TI's LV logic family - engineered for low-voltage operation (2 V–5.5 V), high noise immunity, and seamless integration into mixed-signal systems with legacy and modern voltage domains.

FAQ

What is the maximum clock frequency supported by SN74LV367APWR in bus-driving applications?

The SN74LV367APWR does not operate as a clocked device but functions as a combinatorial buffer. Its 7 ns maximum propagation delay at 5 V supports reliable operation in asynchronous bus systems up to approximately 50 MHz, assuming adequate setup/hold margins and 15 pF load. For synchronous timing-critical paths, designers must verify timing closure using worst-case tpd, trace delays, and receiver specifications - the SN74LV367APWR itself imposes no inherent frequency limit beyond its specified switching characteristics.

Does SN74LV367APWR support hot-swap or live-insertion in backplane systems?

Yes, SN74LV367APWR supports hot-swap via its Ioff feature: when VCC = 0 V, all outputs are disabled and leakage current is limited to ≤5 µA, preventing backdrive into powered circuitry. This behavior is explicitly characterized in the Electrical Characteristics table and makes SN74LV367APWR suitable for modular systems where cards may be inserted or removed while the backplane remains energized - provided proper mechanical and thermal design guidelines are followed.

Can SN74LV367APWR drive standard LEDs directly without current-limiting resistors?

No - SN74LV367APWR outputs must always be used with external current-limiting resistors. While it can source/sink up to ±35 mA per output, typical LEDs require 10–20 mA at ~2 V forward voltage. Without a series resistor, excessive current would flow, risking damage to both the SN74LV367APWR output stage and the LED. The resistor value is calculated as R = (VCC − VF_LED) / I_LED, ensuring continuous current stays within the SN74LV367APWR's rated limits and thermal constraints.

How does the dual-output-enable architecture of SN74LV367APWR improve system-level timing control?

The SN74LV367APWR's two independent active-low OE pins (1OE and 2OE) allow granular control over its two functional groups: Group 1 (1A1–1A4 → 1Y1–1Y4) and Group 2 (2A1–2A2 → 2Y1–2Y2). This enables staggered enable/disable sequencing - for example, blanking one LED matrix row while updating another - reducing visual artifacts in multiplexed displays. It also supports time-multiplexed bus arbitration, where one group handles address lines and the other manages data/control signals, minimizing bus contention without additional logic.

Is SN74LV367APWR pin-compatible with older TTL or CMOS hex buffers like SN74LS367A?

Yes, SN74LV367APWR uses the industry-standard 16-pin SOIC/TSSOP pinout defined for the '367 family, matching SN74LS367A and SN74HC367. All signal pins (A/Y/OE), power (VCC), and ground (GND) occupy identical positions. However, due to differences in logic thresholds and drive strength, direct replacement requires verification of input voltage compatibility and load conditions - especially when interfacing with legacy 5 V TTL sources driving a 3.3 V SN74LV367APWR, where VIH/VIL margins must be confirmed against the Recommended Operating Conditions table.