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

Nexperia USA Inc. CBT3253ADS,112

Name: CBT3253ADS,112
Brand: Nexperia USA Inc.
SKU: CBT3253ADS,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CBT3253ADS,112

Manufacturer:: Nexperia USA Inc.

Category:: Signal Switches, Multiplexers, Decoders

Package:: 16-SSOP (0.154", 3.90mm Width)

Datasheet:: CBT3253ADS,112.pdf

Description:: IC MUX/DEMUX 2 X 4:1 16SSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,613

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Product details

Overview

CBT3253ADS,112 from Nexperia is a dual 1-of-4 FET bus switch IC with two independent SP4T channels, 5 Ω typical ON resistance at 5 V, ±100 μA pass current capability, and operation over -40 °C to +85 °C. It enables bidirectional signal routing in high-speed digital interconnects such as memory address/data buses and FPGA I/O expansion.

For engineers reviewing the CBT3253ADS,112 datasheet, CBT3253ADS,112 pinout, CBT3253ADS,112 application, or CBT3253ADS,112 equivalent, key selection criteria include TTL-compatible control inputs, sub-7 ns enable/disable timing, low on-resistance matching across channels, and SSOP16 package suitability for space-constrained PCB layouts.

Technical Context

The CBT3253ADS,112 implements two independent analog/digital bidirectional switches using NMOS pass transistors without level-shifting circuitry. Each channel features separate active-low output enable (1OE, 2OE) and 2-bit binary select (S0, S1) inputs to route one common A-port terminal to any of four B-port terminals.

It operates strictly within 4.5 V to 5.5 V supply range, with overvoltage-tolerant control inputs rated to 5.5 V and guaranteed latch-up immunity per JEDEC JESD78 Class II Level A. Propagation delay is dominated by RC time constant of R_ON and load capacitance, not gate drive delay.

Key Specifications

Parameter	Value and Actual Design Meaning
ON Resistance	5 Ω typical at VCC = 5 V, IO = −100 μA - ensures minimal voltage drop and signal distortion in 5 V logic paths
Supply Voltage Range	4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS systems without regulation overhead
Enable/Disable Time	1.4 ns to 6.4 ns - supports >150 MHz switching in burst-mode data routing applications
Input Clamping Voltage	−1.2 V at II = −18 mA - protects control pins during hot-swap or ESD events without external diodes
Off-State Capacitance	3.8 pF per B port - minimizes crosstalk and loading on unselected signal lines
ESD Rating	HBM >2000 V, CDM >1000 V - meets industrial IEC 61000-4-2 system-level robustness requirements
Ambient Temperature	−40 °C to +85 °C - qualified for extended industrial temperature operation without derating

Pinout & Package

CBT3253ADS,112 uses the SSOP16 (SOT519-1) package: plastic shrink small outline, 16 leads, 0.635 mm lead pitch, 3.9 mm body width, and 1.73 mm max height. Pin 1 index located at top-left corner with notch marking.

Pin/Terminal	Circuit Role	Design Meaning
1, 15	1OE, 2OE	Active-low enable for Channel 1 and Channel 2 - drives both switches into high-impedance state when HIGH
2, 14	S1, S0	2-bit binary select for B-port routing - determines which of four B terminals connects to A terminal
3–6	1B4–1B1	Channel 1 B-port terminals - bidirectional I/O nodes routed to 1A when enabled and selected
7	1A	Channel 1 common A-port terminal - shared signal path for all four 1B connections
8	GND	Ground reference - must be low-inductance connection to minimize switching noise coupling
9	2A	Channel 2 common A-port terminal - electrically isolated from 1A but shares same VCC/GND rails
10–13	2B1–2B4	Channel 2 B-port terminals - independently selectable like 1Bx group
16	VCC	Positive supply - powers internal bias networks and defines logic threshold for control inputs

Key Features

Feature	Design Value
5 Ω typical ON resistance	Enables <10 mV signal attenuation at 2 mA, preserving TTL logic margins in multiplexed data paths
TTL-level compatible control	Accepts VIH ≥ 2.0 V and VIL ≤ 0.8 V directly from 5 V microcontrollers without level shifters
Overvoltage tolerant inputs	Control pins withstand up to 5.5 V regardless of VCC, simplifying mixed-voltage board design
Sub-7 ns enable/disable timing	Supports glitch-free switching in synchronous burst transfers with <7 ns setup/hold windows
Latch-up immunity >100 mA	Guarantees no destructive latch-up under transient overcurrent conditions per JEDEC JESD78

Applications

Memory Address Multiplexing

FPGA I/O Expansion

Use Scenario: Routing address lines between multiple memory banks sharing a common bus controller.

IC Role / Device Role / Timing Role: Dual-channel bidirectional switch enabling time-division access to SRAM/Flash devices without bus contention.

Use Value: Eliminates need for discrete logic gates or complex CPLD-based address decoding, reducing BOM count and layout area.

Use Scenario: Expanding limited FPGA GPIO count by dynamically assigning pins to different peripheral interfaces.

IC Role / Device Role / Timing Role: Signal router that reconfigures physical pin assignments on-the-fly via FPGA control signals.

Use Value: Enables single FPGA design to support multiple hardware variants (e.g., UART vs SPI sensor interface) without PCB revision.

Test Equipment Signal Switching

Industrial PLC I/O Conditioning

Use Scenario: Automated test systems requiring programmable connection of DUT signals to measurement instruments.

IC Role / Device Role / Timing Role: Low-distortion analog/digital switch providing repeatable, low-crosstalk signal paths under software control.

Use Value: Delivers consistent 5 Ω path impedance and <4 pF off-capacitance, ensuring measurement repeatability across thousands of test cycles.

Use Scenario: Isolating field-side sensor/actuator signals from PLC backplane logic while supporting multiple input types.

IC Role / Device Role / Timing Role: Robust signal selector handling 5 V TTL, open-collector, and 24 V dry-contact inputs via external pull-ups.

Use Value: Withstands industrial ESD events (>2 kV HBM) and operates reliably across wide temperature swings without recalibration.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 1-of-4 bus switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74CBT3253CPWR	Higher R_ON (7 Ω typ), wider VCC range (4.5–5.5 V), identical pinout and function	Same routing functionality but slightly higher insertion loss in high-current paths	Preferred where TI ecosystem compatibility or longer production availability is prioritized
74LVC2G53DP	Single-channel only, lower VCC range (1.65–5.5 V), 10 Ω R_ON, smaller XSON8 package	Requires two units for dual-channel operation; better for ultra-low-power or mixed-voltage designs	Select when board space is critical and dual-channel integration is not required

Compared with SN74CBT3253CPWR, CBT3253ADS,112 offers lower ON resistance and tighter parameter distribution; versus 74LVC2G53DP, it delivers true dual-channel integration with matched timing and reduced component count in 5 V systems.

Availability

CBT3253ADS,112 is available at Aetrix Electronics and suitable for memory subsystems, FPGA carrier boards, automated test equipment, and industrial PLC modules requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for CBT3253ADS,112 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors for automotive, industrial, and consumer markets.

The CBT3253A series belongs to Nexperia's advanced bus switch product line, engineered specifically for low-distortion, high-speed signal routing in 5 V digital systems where minimal propagation delay and precise ON-resistance matching are critical.

FAQ

What is the maximum continuous current per switch channel?

The CBT3253ADS,112 supports up to 128 mA continuous current per switch channel, as specified in the Absolute Maximum Ratings table. This rating applies under recommended operating conditions (VCC = 4.5–5.5 V, Tamb = −40 °C to +85 °C) and assumes proper PCB thermal design with adequate copper pour on VCC and GND planes.

Can the control inputs operate at voltages higher than VCC?

Yes - the S0, S1, 1OE, and 2OE inputs are overvoltage tolerant up to 5.5 V regardless of VCC level, enabling safe interfacing with 5 V controllers even when VCC is powered at 4.5 V or during power sequencing transients. This eliminates need for external clamping diodes in mixed-rail systems.

Is the device suitable for analog signal switching?

Yes - the CBT3253ADS,112 supports bidirectional analog signal routing up to 5 V peak-to-peak with minimal distortion, thanks to its low and flat ON resistance (5 Ω typ), low off-capacitance (3.8 pF), and absence of body-diode conduction in either direction. It is commonly used for audio, sensor, and test signal multiplexing below 10 MHz.

How does the SSOP16 package compare to SO16 and TSSOP16 variants?

The SSOP16 (SOT519-1) package has 0.635 mm lead pitch and 3.9 mm body width - narrower than SO16 (1.27 mm pitch) and slightly narrower than TSSOP16 (4.4 mm width). It offers superior density for compact layouts while maintaining hand-solderability and compatibility with standard reflow profiles, unlike finer-pitch alternatives.

CBT3253ADS,112 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74CBT

Package/Case:: 16-SSOP (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Type:: Multiplexer/Demultiplexer

Circuit:: 2 x 4:1

Independent Circuits:: 1

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SSOP

CBT3253ADS,112 FAQ

1.How can I place an order for CBT3253ADS,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for CBT3253ADS,112 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 CBT3253ADS,112 reliable?

The price and inventory of CBT3253ADS,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CBT3253ADS,112 is usually 5 days.

3.What payment methods are accepted for CBT3253ADS,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CBT3253ADS,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CBT3253ADS,112?

CBT3253ADS,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CBT3253ADS,112 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 CBT3253ADS,112?

For technical support, including CBT3253ADS,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CBT3253ADS,112 requirements.

6.How does Aetrix verify that CBT3253ADS,112 is sourced from the original manufacturer or authorized distributors?

All CBT3253ADS,112 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 CBT3253ADS,112 meets industry standards.

7.What is the process for return or replacement of CBT3253ADS,112?

All CBT3253ADS,112 units undergo pre-shipment inspection (PSI). If there is an issue with CBT3253ADS,112, 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 CBT3253ADS,112 part is unused and in its original packaging.

Return procedure for CBT3253ADS,112:

1.Submit a request within 90 days.

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

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