Texas Instruments SN74CBTLVR16292DL

Overview

SN74CBTLVR16292DL from Texas Instruments is a 12-bit 1-of-2 high-speed FET multiplexer/demultiplexer in SSOP-56 package, featuring rail-to-rail switching, 25-Ω integrated series resistors on all I/O ports, make-before-break operation, and Ioff partial-power-down support. It enables low-propagation-delay signal routing in high-speed data paths such as memory expansion and bus isolation.

For engineers reviewing the SN74CBTLVR16292DL datasheet, SN74CBTLVR16292DL pinout, SN74CBTLVR16292DL application, or SN74CBTLVR16292DL equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, and two confirmed alternative parts with functional and application-level distinctions.

Technical Context

This device implements dual 12-bit bidirectional analog/digital signal switches controlled by a single select (S) input. When S is low, port A connects to B1 and RINT connects to B2; when S is high, port A connects to B2 and RINT connects to B1. Each switch exhibits typical on-state resistance of 30–47 Ω across 2.3 V–3.6 V supply range.

The architecture integrates internal 500-Ω pulldown resistors on RINT and 25-Ω series resistors on all A/B port pins to suppress overshoot/undershoot without external components. Ioff protection ensures <10 µA leakage when VCC = 0 V and any I/O biased 0–3.6 V, enabling safe backdrive isolation during partial power-down.

Key Specifications

Pinout & Package

SN74CBTLVR16292DL uses a 56-pin SSOP (Shrink Small-Outline Package) with 0.5 mm pitch, JEDEC MO-118 compliant, body size 18.54 mm × 7.59 mm × 2.79 mm (max height), gull-wing leads, and moisture sensitivity level (MSL) per JEDEC standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed FET multiplexer applications.

Compared with SN74CBTLVR16292DL, SN74CBT16292DL offers identical performance at lower cost but lacks −40°C support, while SN74CBTLV3861RGYR provides superior speed and density in a smaller package but omits RINT and make-before-break - making SN74CBTLVR16292DL uniquely suited for robust, dual-path industrial signal routing.

Availability

SN74CBTLVR16292DL is available at Aetrix Electronics and suitable for memory expansion interfaces, PCI bus isolation, test access multiplexing, and configurable I/O routing requiring stable component supply across industrial temperature ranges.

Supply support for SN74CBTLVR16292DL 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 delivering analog, embedded processing, and logic solutions with emphasis on reliability, scalability, and system-level integration.

The SN74CBTLVR16292DL belongs to TI's Widebus™ family of high-speed logic devices, engineered specifically for low-latency, low-distortion signal routing in memory, bus, and test infrastructure applications.

FAQ

What is the operating temperature range for SN74CBTLVR16292DL?

The SN74CBTLVR16292DL is specified for operation from −40°C to +85°C, qualifying it for industrial and extended-temperature embedded applications. This range is confirmed in the "recommended operating conditions" table of the official datasheet SCDS056H, and distinguishes it from the commercial-grade SN74CBT16292DL (0°C to 70°C). The DL package's thermal impedance is 56°C/W, supporting reliable operation within this full range under typical PCB layout conditions.

Does SN74CBTLVR16292DL support hot-swap or partial-power-down operation?

Yes, SN74CBTLVR16292DL supports partial-power-down via its Ioff feature: when VCC = 0 V, leakage current remains ≤10 µA even if I/O pins are biased from 0 V to 3.6 V. This prevents damaging back-current flow and maintains isolation, enabling safe hot-swap in modular systems. The datasheet explicitly confirms Ioff compliance and cites JESD78 testing - a requirement for robust hot-plug implementations in telecom and server backplanes.

What is the purpose of the RINT pin on SN74CBTLVR16292DL?

The RINT pin on SN74CBTLVR16292DL is a dedicated reference input that routes to either B1 or B2 bank depending on the S select state - when S = L, RINT connects to B2; when S = H, RINT connects to B1. It includes an internal 500-Ω pulldown resistor to GND and serves applications requiring synchronized switching of both signal and reference paths, such as differential bus termination or calibrated test signal injection. Its function is distinct from standard I/O and is documented in the logic diagram and function table of SCDS056H.

Is SN74CBTLVR16292DL pin-compatible with other members of the CBTLV family?

SN74CBTLVR16292DL is pin-compatible with SN74CBTLV16292DL and SN74CBTLV32292DL in the same DL package, sharing identical 56-pin SSOP footprint and pin assignments for A/B ports, S, VCC, GND, and NC positions. However, RINT functionality and internal resistor values differ across variants - always verify routing and bias requirements per datasheet. Pin compatibility does not imply functional equivalence for RINT-dependent use cases.

What is the maximum signal frequency supported by SN74CBTLVR16292DL?

SN74CBTLVR16292DL supports signal frequencies exceeding 1 GHz in practice, based on its 0.25 ns typical propagation delay and 23 pF I/O capacitance - both measured under loaded conditions (30 pF/50 pF). While not characterized as a RF switch, its low on-resistance (30–47 Ω) and rail-to-rail analog switching enable clean edge transmission in high-speed digital buses like DDR memory control and parallel test interfaces. Bandwidth is limited primarily by external trace impedance and load, not intrinsic device response.