Texas Instruments SN74LVT162240DGVR

Overview

SN74LVT162240 from Texas Instruments is a 3.3-V ABT 16-bit inverting buffer/driver with 3-state outputs, designed for memory address, clock, and bus interface applications. It features four independent 4-bit sections, symmetrical active-low output-enable (OE) inputs, 22-Ω integrated series output resistors, ±12 mA drive capability, and mixed-mode 5-V input tolerance with 3.3-V VCC.

For engineers reviewing the SN74LVT162240 datasheet, SN74LVT162240 pinout, SN74LVT162240 application, or SN74LVT162240 equivalent, key selection criteria include hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND pins for noise reduction, flow-through pin architecture for PCB layout optimization, and guaranteed operation down to 2.7 V for battery-powered systems.

Technical Context

The SN74LVT162240 implements an Advanced BiCMOS Technology (ABT) process optimized for 3.3-V operation with low static power dissipation. Each of its four 4-bit sections provides inverting logic function with individual active-low OE control (1OE–4OE), enabling flexible partitioning as one 16-bit, two 8-bit, or four 4-bit buffers.

It supports hot insertion through dual protection mechanisms: Ioff disables outputs during power-down to prevent backflow current, while power-up 3-state holds outputs in high-impedance until VCC stabilizes above 1.5 V. Input clamping and ESD protection meet JESD 22 (2000-V HBM, 200-V MM, 1000-V CDM) and latch-up exceeds 100 mA per JESD 78 Class II.

Key Specifications

Pinout & Package

SN74LVT162240DGVR uses a 48-pin Thin Very Small-Outline Package (TVSOP, DGV), measuring 12.6 mm × 6.1 mm × 1.2 mm max height, JEDEC MO-153 compliant, with 0.4 mm pitch and Q1 pin-1 quadrant orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit inverting buffer/driver applications.

Compared with SN74LVT162240DGVR, SN74LVTH162240DGVR offers higher drive and tighter VOL but lacks integrated termination, while SN74ALVC162240DGVR reduces power consumption significantly but sacrifices 5-V input compatibility-making SN74LVT162240DGVR the optimal choice for robust mixed-voltage bus interfacing with minimal external components.

Availability

SN74LVT162240DGVR is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystems, and high-density clock distribution requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SN74LVT162240DGVR 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 connectivity technologies, with decades of experience in high-reliability logic and interface solutions.

The SN74LVT162240 belongs to TI's Widebus™ ABT logic family, engineered for high-speed, low-noise 3.3-V bus interfacing in industrial, communications, and computing infrastructure where mixed-voltage compatibility and hot-swap resilience are essential.

FAQ

What is the maximum operating voltage for SN74LVT162240DGVR?

The absolute maximum supply voltage (VCC) for SN74LVT162240DGVR is 4.6 V, but the recommended operating range is 2.7 V to 3.6 V. Operation outside this range may cause permanent damage or unpredictable behavior. The device supports 5-V-tolerant inputs (up to 5.5 V) even when VCC is at 3.3 V, making it ideal for interfacing with legacy 5-V logic while maintaining 3.3-V core operation.

Does SN74LVT162240DGVR support hot insertion?

Yes, SN74LVT162240DGVR supports hot insertion through two complementary mechanisms: Ioff circuitry disables outputs when VCC = 0 V to prevent back-current flow, and power-up 3-state forces outputs into high-impedance during power ramp-up or ramp-down. These features are fully characterized and tested per TI's production specifications, ensuring safe live insertion into powered systems without bus contention or component stress.

How many independent 4-bit sections does SN74LVT162240DGVR contain?

SN74LVT162240DGVR contains four independent 4-bit inverting buffer/driver sections, each with its own set of four inputs (e.g., 1A1–1A4), four inverted outputs (e.g., 1Y1–1Y4), and one active-low output-enable input (e.g., 1OE). This architecture allows flexible configuration as one 16-bit, two 8-bit, or four separate 4-bit buffers, enabling granular bus segmentation and power management.

What is the purpose of the 22-Ω series resistors in SN74LVT162240DGVR outputs?

The 22-Ω series resistors integrated into each output of SN74LVT162240DGVR serve to dampen signal reflections and reduce overshoot/undershoot on transmission lines, particularly in high-speed or long-trace applications. They eliminate the need for external series termination resistors, lowering BOM cost and PCB real estate usage while maintaining signal integrity - a key advantage over standard LVT or ALVC buffers lacking this feature.

Is SN74LVT162240DGVR pin-compatible with other packages in the same family?

SN74LVT162240DGVR (TVSOP, DGV) shares identical pinout and functionality with SN74LVT162240DGGR (TSSOP, DGG) and SN74LVT162240DLR (SSOP, DL), as confirmed by TI's official ordering information and package drawings. All three use the same 48-pin arrangement, logic mapping, and electrical specifications - allowing direct substitution based on board space, thermal, or assembly requirements without redesign.