Texas Instruments CCB3T16210QDGGRQ1

Overview

CCB3T16210QDGGRQ1 from Texas Instruments is a 20-bit automotive-grade FET bus switch organized as two independent 10-bit bidirectional switches, featuring 5-V-tolerant I/Os, 5 Ω typical ON-state resistance (ron), 5 pF typical OFF-state I/O capacitance, and operation across 2.3 V to 3.6 V VCC - used for level translation and bus isolation in automotive infotainment backplanes.

For engineers reviewing the CCB3T16210QDGGRQ1 datasheet, CCB3T16210QDGGRQ1 pinout, CCB3T16210QDGGRQ1 application, or CCB3T16210QDGGRQ1 equivalent, key selection criteria include mixed-mode voltage translation capability, Ioff partial-power-down support, automotive AEC-Q100 qualification, and TSSOP-48 package compatibility with high-density PCB layouts.

Technical Context

The CCB3T16210QDGGRQ1 implements dual 10-bit FET-based transmission gates controlled by separate 1OE and 2OE inputs, enabling independent enable/disable of each 10-bit channel. Its gate drive architecture tracks VCC to deliver output voltage translation matching the supply rail - supporting 5-V input down to 3.3-V output with 3.3-V VCC, or 5-V/3.3-V input down to 2.5-V output with 2.5-V VCC.

Each switch exhibits near-zero propagation delay (tpd ≤ 14 ns at VCC = 2.5 V), bidirectional signal flow, and robust 5-V tolerance on all data I/Os regardless of power state. The device integrates undershoot clamp diodes on data and control inputs and supports partial-power-down via Ioff, preventing backflow current when VCC = 0 V.

Key Specifications

Pinout & Package

TSSOP-48 package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, lead pitch 0.5 mm, RoHS-compliant NIPDAU finish, MSL Level-3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FET bus switch applications.

Compared with SN74CB3T16210 and TS3USB30E, the CCB3T16210QDGGRQ1 uniquely combines AEC-Q100 Grade 1 qualification, dual independent 10-bit channels with Ioff, and 5 Ω ron in a single TSSOP-48 package - making it the only option for automotive 20-bit bus isolation with full power-domain safety.

Availability

CCB3T16210QDGGRQ1 is available at Aetrix Electronics and suitable for automotive infotainment backplanes, PCIe sideband routing, memory interleaving interfaces, and USB 2.0 OTG switching requiring stable component supply across extended temperature and automotive lifecycle demands.

Supply support for CCB3T16210QDGGRQ1 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 automotive ICs, with over 90 years of innovation in high-reliability electronic components.

The CCB3T16210QDGGRQ1 belongs to TI's Widebus™ family of high-speed bus switches, designed specifically for voltage translation, bus isolation, and mixed-signal interconnect in automotive and industrial systems demanding AEC-Q100 compliance.

FAQ

What is the maximum data rate supported by the CCB3T16210QDGGRQ1?

The CCB3T16210QDGGRQ1 supports bidirectional signal switching with ≤14 ns propagation delay at VCC = 2.5 V, enabling reliable operation at data rates up to 70 Mbps in parallel bus configurations. Its 5 Ω ron and 5 pF Cio(OFF) preserve signal integrity for full-speed USB 2.0 (480 Mbps) when used on individual D+/D− lines, though system-level timing validation is required for multi-bit synchronous buses.

Does the CCB3T16210QDGGRQ1 require external pull-up resistors on OE pins?

Yes - to ensure high-impedance state during power-up or power-down, OE pins (1OE and 2OE) must be tied to VCC through a pull-up resistor. TI specifies the minimum resistor value based on the driving source's current-sinking capability; typical values range from 4.7 kΩ to 10 kΩ for standard CMOS drivers, ensuring OE remains high until valid VCC is established.

Can the CCB3T16210QDGGRQ1 be used for unidirectional signal routing?

Yes - although inherently bidirectional, the CCB3T16210QDGGRQ1 functions reliably in unidirectional applications (e.g., address/data separation in memory interfaces) by driving only one port (A or B) while holding the other at defined logic levels. Its symmetrical ron and Cio characteristics ensure matched performance regardless of signal direction.

What is the purpose of the NC pins on the CCB3T16210QDGGRQ1?

Pins 1 and 48 of the CCB3T16210QDGGRQ1 are designated NC (No internal connection) - they contain no bond wires or circuitry. These pins must remain unconnected on the PCB to prevent mechanical stress on the die paddle and avoid unintended ESD discharge paths that could compromise latch-up immunity or long-term reliability.

How does the CCB3T16210QDGGRQ1 handle voltage translation when VCC = 2.5 V?

When VCC = 2.5 V, the CCB3T16210QDGGRQ1 translates 5-V or 3.3-V inputs down to ~2.5-V outputs - the output voltage tracks VCC within ±0.1 V under load. This enables direct interfacing between legacy 5-V peripherals and modern 2.5-V logic domains without external regulators or level-shifting ICs, verified across –40°C to 125°C.