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Nexperia USA Inc. CBT3253APW,118
- Part No.:
- CBT3253APW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CBT3253APW,118.pdf
- Description:
- IC MUX/DEMUX 2 X 4:1 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,780
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Product details
Overview
CBT3253APW,118 from Nexperia is a dual 1-of-4 FET bus switch IC with two independent SP4T analog signal paths, 5 Ω typical ON resistance at 5 V, <0.25 ns propagation delay, and TTL-compatible control inputs tolerant to 5.5 V. It operates from -40 °C to +85 °C and is used in high-speed data routing for industrial I/O expansion and FPGA peripheral multiplexing.
For engineers reviewing the CBT3253APW,118 datasheet, CBT3253APW,118 pinout, CBT3253APW,118 application, or CBT3253APW,118 equivalent, key selection criteria include dual-channel 1:4 analog switching capability, sub-1 ns enable/disable timing, overvoltage-tolerant select/enable pins, and TSSOP16 packaging for space-constrained PCB layouts.
Technical Context
The CBT3253A implements two independent bidirectional analog switches, each controlled by separate active-low output enable (1OE, 2OE) and 2-bit binary select (S0, S1) inputs. Each channel routes one common A-port terminal (1A or 2A) to one of four B-port terminals (1B1–1B4 or 2B1–2B4) when enabled.
Switch operation uses low-threshold FETs with no internal level-shifting circuitry; signal pass voltage remains within 0.3 V of rail limits (VCC = 4.5–5.5 V), and input clamping protects control pins up to ±50 mA while maintaining TTL logic thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance | 5 Ω typical at VCC = 5 V, IO = ±100 μA - ensures minimal signal attenuation and voltage drop in analog/digital signal paths |
| Propagation Delay | <0.25 ns max (nA ↔ nBn) - supports >1 GHz signal routing without timing skew between channels |
| Enable/Disable Time | 1.0–7.2 ns max (nOE → nA/nBn) - enables fast dynamic reconfiguration in real-time I/O systems |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V logic rails and tolerant of ±5% regulation variation |
| Input Voltage Tolerance | Control inputs rated to 5.5 V - allows direct interfacing with 3.3 V or 5 V controllers without level shifters |
| Operating Temperature | -40 °C to +85 °C - qualified for industrial ambient environments without derating |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces risk of field failure during handling and board assembly |
Pinout & Package
TSSOP16 package (SOT403-1): 16-pin thin shrink small outline, 4.4 mm body width, 0.65 mm lead pitch, exposed pad not present, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output enable for Channel 1 and Channel 2 - drives respective A-B path into high-impedance state when HIGH |
| 2, 14 | S1, S0 | 2-bit binary select inputs - determine which of four B-port terminals connects to corresponding A-port terminal |
| 3–6 | 1B4, 1B3, 1B2, 1B1 | Channel 1 B-port terminals - bidirectional analog/digital I/O nodes routed to 1A based on S1/S0 state |
| 7 | 1A | Channel 1 common A-port terminal - bidirectional interface shared across all four 1B paths |
| 8 | GND | Ground reference for all internal circuitry and signal return path |
| 9 | 2A | Channel 2 common A-port terminal - independent bidirectional interface for second 1:4 switch |
| 10–13 | 2B1, 2B2, 2B3, 2B4 | Channel 2 B-port terminals - electrically isolated from Channel 1; support independent routing |
| 16 | VCC | Positive supply input - powers internal FET drivers and logic; must be decoupled locally |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 1-of-4 analog switches | Enables simultaneous routing of two separate signal groups without crosstalk or shared control dependency |
| 5 Ω typical ON resistance | Minimizes insertion loss and distortion for signals up to 100 MHz, preserving signal integrity in mixed-signal systems |
| TTL-compatible control with 5.5 V tolerance | Eliminates need for external level translators when interfacing with legacy 5 V microcontrollers or FPGAs |
| Sub-nanosecond propagation delay | Supports high-speed parallel bus applications such as memory-mapped I/O expansion without timing budget impact |
| Latch-up immunity >100 mA | Ensures robustness against transient current faults per JEDEC JESD78 Class II Level A, reducing system-level protection overhead |
Applications
| Industrial PLC I/O Expansion | FPGA Peripheral Multiplexing |
|---|---|
|
Use Scenario: Routing multiple sensor inputs (temperature, pressure, flow) to a single ADC channel in modular PLC backplanes. IC Role / Device Role / Timing Role: Dual 1:4 analog switch providing time-shared access to four analog sensors per ADC input, synchronized via FPGA GPIO. Use Value: Reduces component count by replacing four discrete analog switches with one dual-channel device, saving 32 mm² PCB area in TSSOP16 footprint. |
Use Scenario: Sharing UART, SPI, and I²C interfaces among multiple daughterboards connected to a central FPGA carrier. IC Role / Device Role / Timing Role: Bidirectional digital bus switch enabling FPGA-controlled selection of active peripheral bus segment without protocol translation. Use Value: Enables hot-swappable peripheral modules using only two CBT3253APW,118 devices - one for data lines, one for control lines - with zero added latency. |
| Test Equipment Signal Routing | Embedded Controller Bus Arbitration |
|
Use Scenario: Configurable signal path selection in automated test equipment (ATE) for connecting DUT pins to measurement instruments. IC Role / Device Role / Timing Role: High-fidelity analog/digital multiplexer supporting DC–100 MHz bandwidth with <5 Ω path resistance and <1 ns switching. Use Value: Maintains measurement accuracy across 16 signal paths using four CBT3253APW,118 units, avoiding relay-based solutions with mechanical wear and bounce. |
Use Scenario: Dynamic assignment of shared system buses (e.g., CAN, LIN) between multiple microcontroller subsystems in automotive body electronics. IC Role / Device Role / Timing Role: Low-latency bus switch isolating competing masters during arbitration, controlled by system supervisor MCU. Use Value: Prevents bus contention without software-level coordination, reducing firmware complexity and eliminating arbitration delays above 100 kHz clock domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 1-of-4 analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3253CPWR | Higher ON resistance (7 Ω typ), wider supply range (4.5–5.5 V same), identical pinout and logic | Marginally higher insertion loss; suitable where 2 Ω extra RON is acceptable for cost-sensitive designs | Select when sourcing from TI-authorized distributors is preferred and minor RON increase does not affect signal fidelity |
| 74LVC1G3157GW,125 | Single-channel only, 3.3 V only supply, smaller SC-70-6 package, 6 Ω RON | Requires two devices to match dual-channel functionality; unsuitable for 5 V systems or space-constrained dual-path routing | Choose only for 3.3 V-only designs needing ultra-small footprint and where doubling device count is acceptable |
Compared with SN74CBT3253CPWR and 74LVC1G3157GW,125, the CBT3253APW,118 delivers lowest RON, fastest enable timing, and native 5 V compatibility - making it optimal for industrial-grade dual-bus routing where signal integrity and timing margin are critical.
Availability
CBT3253APW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, FPGA peripheral multiplexing, test equipment signal routing, and embedded controller bus arbitration requiring stable component supply across long production lifecycles.
Supply support for CBT3253APW,118 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 logic, analog, and MOSFET components for industrial, automotive, and consumer applications.
The CBT3253A belongs to Nexperia's advanced bus switch product line, designed specifically for low-latency, low-distortion analog and digital signal routing in space-constrained industrial control and programmable logic systems.
FAQ
What is the maximum signal frequency supported by CBT3253APW,118?
The CBT3253APW,118 supports signals up to 100 MHz with minimal distortion due to its 5 Ω ON resistance and 18.6 pF on-state capacitance. Measured bandwidth exceeds 200 MHz under 50 Ω source/load conditions, but practical analog routing is validated to 100 MHz per application note AN11123.
Can CBT3253APW,118 operate with 3.3 V logic control signals while switching 5 V analog signals?
Yes - the control inputs (S0, S1, 1OE, 2OE) are overvoltage tolerant to 5.5 V and recognize TTL thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), allowing direct connection to 3.3 V GPIO while VCC = 5 V supplies the analog path. No level shifter is required.
Is thermal pad connection required for CBT3253APW,118 in TSSOP16 package?
No - the SOT403-1 (TSSOP16) package used for CBT3253APW,118 has no exposed thermal pad. Thermal dissipation relies on copper pour under the leads and standard PCB layout practices; junction-to-ambient θJA is 120 °C/W in typical 2-layer board configuration.
Does CBT3253APW,118 support bidirectional signal flow on all ports?
Yes - all A-port and B-port terminals (1A, 2A, 1B1–1B4, 2B1–2B4) are fully bidirectional. Signal direction is determined solely by external source/sink placement; no internal polarity or direction control logic is present.
CBT3253APW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74CBT
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-TSSOP
CBT3253APW,118 FAQ
1.How can I place an order for CBT3253APW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for CBT3253APW,118 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 CBT3253APW,118 reliable?
The price and inventory of CBT3253APW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CBT3253APW,118 is usually 5 days.
3.What payment methods are accepted for CBT3253APW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CBT3253APW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CBT3253APW,118?
CBT3253APW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CBT3253APW,118 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 CBT3253APW,118?
For technical support, including CBT3253APW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CBT3253APW,118 requirements.
6.How does Aetrix verify that CBT3253APW,118 is sourced from the original manufacturer or authorized distributors?
All CBT3253APW,118 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 CBT3253APW,118 meets industry standards.
7.What is the process for return or replacement of CBT3253APW,118?
All CBT3253APW,118 units undergo pre-shipment inspection (PSI). If there is an issue with CBT3253APW,118, 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 CBT3253APW,118 part is unused and in its original packaging.
Return procedure for CBT3253APW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CBT3253APW,118 Tags
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SN74HC138DR
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