Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments 74CBT16214DGGRG4

Name: 74CBT16214DGGRG4
Brand: Texas Instruments
SKU: 74CBT16214DGGRG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74CBT16214DGGRG4

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: 56-TFSOP (0.240", 6.10mm Width)

Datasheet:: 74CBT16214DGGRG4.pdf

Description:: IC MUX/DEMUX 12 X 1:3 56TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,900

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

74CBT16214DGGRG4 from Texas Instruments is a 12-bit, 1-of-3 FET bus multiplexer/demultiplexer with TTL-compatible control inputs, 5 Ω typical ON-state resistance, and sub-nanosecond propagation delay (0.25 ns at 5 V), used for high-speed signal routing in industrial bus expansion systems.

For engineers reviewing the 74CBT16214DGGRG4 datasheet, 74CBT16214DGGRG4 pinout, 74CBT16214DGGRG4 application, or 74CBT16214DGGRG4 equivalent, this page delivers verified electrical specs, functional mode mapping, real-world use-value per application, and two validated alternative parts for bus-select switching in embedded control and data acquisition systems.

Technical Context

The 74CBT16214DGGRG4 implements a 12-channel, 3-port analog/digital bus switch using NMOS transmission gates controlled by three select lines (S0–S2). Each channel operates bidirectionally with no internal level-shifting or current drive capability - signal integrity depends entirely on external source/sink strength and load capacitance.

Its functional modes are fully defined by the S2:S1:S0 binary code: only three combinations (001, 010, 111) connect A to B1/B2/B3 respectively; all others place the A port in high-impedance state. The device requires VCC between 4 V and 5.5 V and supports operation from –40°C to +85°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Function	12-bit 1-of-3 bidirectional FET multiplexer/demultiplexer - routes one 12-bit bus among three independent 12-bit buses
ON-state resistance (r_ON)	Typical 5 Ω at V_CC = 4 V, I_I = 15 mA - minimizes voltage drop and signal attenuation across switched paths
Propagation delay (t_pd)	0.25 ns max at V_CC = 5 V, C_L = 50 pF - enables GHz-range digital signal routing without timing penalty
Supply voltage range	4 V to 5.5 V - compatible with standard 5-V TTL and mixed-voltage logic domains
Control input compatibility	TTL-level: V_IL ≤ 0.8 V, V_IH ≥ 2 V - interfaces directly with legacy 5-V microcontrollers and FPGAs
ESD rating	±1000 V HBM, ±1500 V CDM - meets industrial handling requirements without additional protection circuitry
Operating temperature	–40°C to +85°C - qualified for industrial automation and factory-floor embedded systems

Pinout & Package

TSSOP-56 package (DGG), 8.10 mm × 14.00 mm body size, 1.2 mm maximum height, RoHS-compliant NiPdAu lead finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
S0, S1, S2	Data-select inputs	3-bit binary code selects which of three B-port banks (B1/B2/B3) connects to the A-port bus
1A–12A	Common A-side I/O	Bidirectional 12-bit bus interface - connects to controller or master bus
1B1–12B1, 1B2–12B2, 1B3–12B3	Three independent B-side I/O banks	Each 12-bit bank serves as selectable destination/source - no internal cross-connection between B banks
VCC	Power supply	Single 4–5.5 V supply powers all 12 switches; bypass capacitor required at pin
GND (×4 pins)	Ground reference	Four dedicated ground pins minimize ground bounce and improve noise immunity in high-speed switching

Key Features

Feature	Design Value
Low r_ON	5 Ω typical ensures <10 mV drop at 2 mA, preserving logic margins in 5-V systems
TTL-compatible control	Eliminates need for level translators when driven by legacy 5-V microcontrollers or CPLDs
Sub-ns propagation delay	0.25 ns t_pd allows use in >1 GHz clock domain edge routing without added skew
High-impedance disconnect states	All unused A/B ports float to Z-state - prevents bus contention during reconfiguration
Robust ESD protection	±1000 V HBM rating reduces risk of field failure during board assembly and handling

Applications

Industrial Bus Expansion	Factory Automation I/O Multiplexing
Use Scenario: Expanding a single 12-bit parallel bus from a PLC CPU to three separate sensor/actuator racks. IC Role / Device Role / Timing Role: 12-bit 1-of-3 bus-select switch enabling dynamic routing of control data to selected rack without hardware reconfiguration. Use Value: Reduces PCB layer count by eliminating three parallel 12-bit buses; maintains signal integrity via 5 Ω r_ON and sub-ns delay.	Use Scenario: Sharing one 12-bit ADC interface among three analog sensor modules in a modular I/O chassis. IC Role / Device Role / Timing Role: Bidirectional analog/digital multiplexer allowing time-division access to shared conversion resources. Use Value: Enables cost-effective reuse of high-precision ADC hardware across multiple sensor channels with minimal crosstalk (<7.5 pF off-capacitance).
Programmable Logic Interfacing	Consumer Audio Signal Routing
Use Scenario: Connecting a FPGA's 12-bit general-purpose I/O bank to three different peripheral interfaces (SPI flash, UART transceiver, GPIO expander). IC Role / Device Role / Timing Role: Logic-level bus switch providing software-selectable physical layer connectivity. Use Value: Eliminates need for external glue logic or multiplexed address decoding; supports hot-reconfiguration via S0–S2 control.	Use Scenario: Routing digital audio streams (I²S or SPDIF) between a single codec and three output amplifiers in a multi-zone home audio system. IC Role / Device Role / Timing Role: High-fidelity digital signal path selector preserving edge rates and minimizing jitter accumulation. Use Value: Sub-ns t_pd and low r_ON prevent intersymbol interference; TTL-compatible inputs simplify MCU-based zone selection.

Industrial Bus Expansion

Factory Automation I/O Multiplexing

Use Scenario: Expanding a single 12-bit parallel bus from a PLC CPU to three separate sensor/actuator racks.

IC Role / Device Role / Timing Role: 12-bit 1-of-3 bus-select switch enabling dynamic routing of control data to selected rack without hardware reconfiguration.

Use Value: Reduces PCB layer count by eliminating three parallel 12-bit buses; maintains signal integrity via 5 Ω r_ON and sub-ns delay.

Use Scenario: Sharing one 12-bit ADC interface among three analog sensor modules in a modular I/O chassis.

IC Role / Device Role / Timing Role: Bidirectional analog/digital multiplexer allowing time-division access to shared conversion resources.

Use Value: Enables cost-effective reuse of high-precision ADC hardware across multiple sensor channels with minimal crosstalk (<7.5 pF off-capacitance).

Programmable Logic Interfacing

Consumer Audio Signal Routing

Use Scenario: Connecting a FPGA's 12-bit general-purpose I/O bank to three different peripheral interfaces (SPI flash, UART transceiver, GPIO expander).

IC Role / Device Role / Timing Role: Logic-level bus switch providing software-selectable physical layer connectivity.

Use Value: Eliminates need for external glue logic or multiplexed address decoding; supports hot-reconfiguration via S0–S2 control.

Use Scenario: Routing digital audio streams (I²S or SPDIF) between a single codec and three output amplifiers in a multi-zone home audio system.

IC Role / Device Role / Timing Role: High-fidelity digital signal path selector preserving edge rates and minimizing jitter accumulation.

Use Value: Sub-ns t_pd and low r_ON prevent intersymbol interference; TTL-compatible inputs simplify MCU-based zone selection.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus-select switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74CBT16212DGGR	12-bit 1-of-2 switch (only B1/B2 ports); lacks third B3 bank and S2 pin	Supports dual-bus routing only; insufficient for 3-way expansion topologies	Select when only two downstream buses are needed - lower pin count and reduced layout complexity
SN74CBT16244DL	16-bit 1-of-1 switch (non-multiplexing); no select inputs; fixed A-to-B connection	Provides simple bus buffering, not dynamic routing - no S0/S1/S2 functionality	Choose for point-to-point isolation where reconfigurability is unnecessary and higher channel count is required

Compared with SN74CBT16212DGGR and SN74CBT16244DL, the 74CBT16214DGGRG4 uniquely delivers true 3-way dynamic bus selection in a single 56-pin TSSOP, making it irreplaceable in applications requiring runtime switching among three independent data paths without PCB redesign.

Availability

74CBT16214DGGRG4 is available at Aetrix Electronics and suitable for industrial bus expansion, factory automation I/O multiplexing, and programmable logic interfacing requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 74CBT16214DGGRG4 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 74CBT16214DGGRG4 belongs to TI's Widebus™ family of high-speed CMOS bus switches, engineered specifically for low-latency, low-distortion signal routing in deterministic real-time control systems.

FAQ

What is the maximum operating frequency supported by the 74CBT16214DGGRG4?

The 74CBT16214DGGRG4 does not specify a maximum clock frequency, as it is a passive analog switch - its usable bandwidth is determined by load capacitance and r_ON. With 50 pF load and 5 Ω r_ON, the RC time constant is ~250 ps, supporting clean edge transitions up to ~1.6 GHz. System-level timing must be verified per actual layout and termination.

Can the 74CBT16214DGGRG4 be used with 3.3-V logic signals?

The 74CBT16214DGGRG4 requires V_CC between 4 V and 5.5 V and is not rated for 3.3-V operation. While 3.3-V signals applied to its I/O pins may pass through when V_CC = 5 V, the control inputs (S0–S2) require V_IH ≥ 2 V and V_IL ≤ 0.8 V - compatible with 3.3-V logic levels, but full functionality assumes 5-V supply. Do not operate V_CC below 4 V.

Does the 74CBT16214DGGRG4 support hot insertion or live swapping?

No. The 74CBT16214DGGRG4 lacks power-on reset, I²C configuration, or bus-hold circuitry. Applying signals before V_CC stabilization risks latch-up or ESD damage. TI recommends powering V_CC and grounding all control inputs before applying A/B-side signals. Use external series resistors if hot-swap is required.

How many simultaneous connections can the 74CBT16214DGGRG4 make?

The 74CBT16214DGGRG4 makes exactly one 12-bit connection at a time: the A-port connects exclusively to either B1, B2, or B3 based on the S2:S1:S0 code. No internal cross-connections exist between B banks. All unselected B ports and the A port (when disconnected) present high-impedance states.

Is the 74CBT16214DGGRG4 pin-compatible with other Widebus™ multiplexers?

The 74CBT16214DGGRG4 shares the same TSSOP-56 footprint and pinout with SN74CBT16212DGGR (1-of-2) and SN74CBT16244DL (16-bit buffer), but S2 functionality and B3 bank presence differ. Pin compatibility exists mechanically, but functional replacement requires verification of select-line usage and B-port count - direct substitution is not guaranteed without design review.

74CBT16214DGGRG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74CBT

Package/Case:: 56-TFSOP (0.240", 6.10mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Type:: Multiplexer/Demultiplexer

Circuit:: 12 x 1:3

Independent Circuits:: 1

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: 4V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-TSSOP

74CBT16214DGGRG4 FAQ

1.How can I place an order for 74CBT16214DGGRG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74CBT16214DGGRG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74CBT16214DGGRG4 reliable?

The price and inventory of 74CBT16214DGGRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBT16214DGGRG4 is usually 5 days.

3.What payment methods are accepted for 74CBT16214DGGRG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBT16214DGGRG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74CBT16214DGGRG4?

74CBT16214DGGRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74CBT16214DGGRG4 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74CBT16214DGGRG4?

For technical support, including 74CBT16214DGGRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBT16214DGGRG4 requirements.

6.How does Aetrix verify that 74CBT16214DGGRG4 is sourced from the original manufacturer or authorized distributors?

All 74CBT16214DGGRG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74CBT16214DGGRG4 meets industry standards.

7.What is the process for return or replacement of 74CBT16214DGGRG4?

All 74CBT16214DGGRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBT16214DGGRG4, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74CBT16214DGGRG4 part is unused and in its original packaging.

Return procedure for 74CBT16214DGGRG4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…