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Nexperia USA Inc. CBT3257APW-Q100J
- Part No.:
- CBT3257APW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CBT3257APW-Q100J.pdf
- Description:
- IC MUX/DEMUX 4 X 2:1 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,749
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Product details
Overview
CBT3257APW-Q100 from Nexperia is a quad 1-of-2 bus switch IC with active-Low output enable (OE) and single select (S) control, delivering 5 Ω ON resistance, sub-0.3 ns propagation delay, and AEC-Q100 Grade 1 qualification for automotive infotainment signal routing.
For engineers reviewing the CBT3257APW-Q100 datasheet, CBT3257APW-Q100 pinout, CBT3257APW-Q100 application, or CBT3257APW-Q100 equivalent, key selection criteria include its TTL-compatible control inputs, overvoltage-tolerant OE/S pins up to 5.5 V, -40 °C to +125 °C operation, and TSSOP16 package with verified 16-pin functional mapping.
Technical Context
This device implements four independent SPDT analog switches in a single monolithic CMOS structure, each controlled by shared S and OE signals. Switching is bidirectional with no internal level-shifting, supporting signal integrity across 5 V logic domains without directionality constraints.
Its architecture relies on transmission-gate topology with rail-to-rail conduction capability, enabling direct interface between microcontroller GPIOs and peripheral buses while maintaining <10 Ω RON across full temperature range and <5.9 ns disable time at +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance | 5 Ω typical at VCC = 4.5 V, II = 64 mA - ensures minimal voltage drop and signal attenuation in high-speed digital or analog signal paths |
| Propagation Delay | 0.25 ns max (nA ↔ nBn), 5.0 ns max (S → nA) - supports >1 GHz switching in multiplexed data lines without timing skew |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V automotive power rails and immune to brown-out below 4.5 V |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood and ADAS ECU environments per AEC-Q100 Grade 1 |
| Control Input Tolerance | OE/S tolerate up to 5.5 V regardless of VCC - enables safe interfacing with mixed-voltage systems without external level shifters |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets automotive robustness requirements for assembly and field operation |
| Off-State Capacitance | 6.4 pF max (Cio(off)) - minimizes crosstalk and loading on adjacent high-frequency traces in dense PCB layouts |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1), 4.4 mm body width, 0.65 mm lead pitch, 1.2 mm max height - optimized for automated SMT placement and thermal performance in compact automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S | Select input controlling path between nA and nB1/nB2; TTL-compatible, overvoltage tolerant to 5.5 V |
| 2, 5, 11, 14 | 1B1, 2B1, 3B1, 4B1 | First B-side terminals for channels 1–4; bidirectional I/O ports with 6.4 pF off-capacitance |
| 3, 6, 10, 13 | 1B2, 2B2, 3B2, 4B2 | Second B-side terminals for channels 1–4; electrically identical to B1 pins, isolated when OE HIGH |
| 4, 7, 9, 12 | 1A, 2A, 3A, 4A | A-side common terminals per channel; connect to MCU GPIOs or sensor outputs with 5 Ω RON |
| 8 | GND | Ground reference for all internal circuitry and signal return path; must be low-impedance connection |
| 15 | OE | Active-Low output enable; disables all switches simultaneously; overvoltage tolerant to 5.5 V |
| 16 | VCC | Positive supply input; powers internal logic and switch transistors; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including lifetime reliability testing per JEDEC JESD47 |
| Bidirectional analog/digital switching | Zero-directionality constraint enables reuse in both mux and demux configurations without redesign |
| Latch-up immunity >100 mA | Complies with JEDEC JESD78 Class II Level A, preventing destructive latch-up during transient overvoltage events |
| Low dynamic power consumption | ICC ≤ 25 μA at VCC = 5.5 V and full temperature range - reduces system-level heat generation in always-on ECUs |
| Minimal propagation delay variation | tpd variation <0.3 ns across temperature and voltage - critical for deterministic timing in synchronized sensor clusters |
Applications
| Automotive Infotainment Audio Routing | ADAS Camera Data Multiplexing |
|---|---|
|
Use Scenario: Selecting between multiple audio sources (Bluetooth, USB, tuner) before feeding into a DSP or amplifier in head unit designs. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing low-distortion, low-latency signal path selection with simultaneous channel control. Use Value: 5 Ω RON and 6.4 pF Cio(off) preserve wideband audio fidelity; AEC-Q100 qualification ensures reliability in vehicle cabin thermal environments. |
Use Scenario: Time-division multiplexing of LVDS video streams from front/rear/side cameras onto a single MIPI CSI-2 receiver lane in surround-view systems. IC Role / Device Role / Timing Role: High-speed bidirectional bus switch enabling dynamic camera input reconfiguration without FPGA or dedicated serializer. Use Value: Sub-0.3 ns propagation delay prevents pixel clock skew; 5.5 V overvoltage tolerance accommodates camera module supply variations. |
| Body Control Module Signal Isolation | Automotive Gateway CAN/LIN Interface Sharing |
|
Use Scenario: Isolating diagnostic test equipment from vehicle body networks during production line EOL testing to prevent backfeeding. IC Role / Device Role / Timing Role: Fail-safe signal gate activated only during test mode via OE control, blocking unintended communication paths. Use Value: Active-Low OE allows direct connection to test controller's open-drain output; latch-up immunity protects against ESD during probe contact. |
Use Scenario: Sharing a single CAN transceiver or LIN transceiver between multiple microcontrollers in gateway ECUs with software-controlled arbitration. IC Role / Device Role / Timing Role: Bidirectional bus switch enabling hardware-level transceiver resource sharing without protocol-level contention. Use Value: TTL-compatible S/OE inputs simplify integration with existing MCU GPIOs; 125 °C rating supports placement near power conversion stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPDT bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3257QPWRQ1 | Higher RON (7 Ω typ), wider VCC range (4.5–5.5 V same), identical pinout and AEC-Q100 Grade 1 rating | Marginally higher insertion loss in RF-sensitive analog paths; otherwise functionally interchangeable | Preferred where TI ecosystem compatibility or dual-sourcing is required; same PCB footprint |
| 74LVC1G3157GW-Q100 | Single-channel only, lower RON (3.5 Ω), operates down to 1.65 V VCC - not pin-compatible or functionally equivalent | Requires four separate packages to match quad functionality; unsuitable for space-constrained modules | Only viable for new designs where voltage flexibility outweighs board area penalty and layout complexity |
Compared with SN74CBT3257QPWRQ1, CBT3257APW-Q100 offers lower ON resistance for reduced signal degradation; versus 74LVC1G3157GW-Q100, it delivers integrated quad functionality in one TSSOP16 package, reducing component count and routing complexity in automotive domain controllers.
Availability
CBT3257APW-Q100 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS sensor fusion modules, and body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CBT3257APW-Q100 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 essential efficiency technologies, delivering high-performance logic, analog, and discrete components for automotive, industrial, and consumer markets.
CBT3257APW-Q100 belongs to Nexperia's AEC-Q100-qualified bus switch product line, engineered specifically for robust signal routing in automotive electronic control units where low RON, fast switching, and thermal resilience are mandatory.
FAQ
What is the maximum continuous current per switch channel?
The CBT3257APW-Q100 supports 128 mA continuous current through each individual switch channel, as specified in the Absolute Maximum Ratings table. This rating applies across the full -40 °C to +125 °C operating range and is validated per IEC 60134 limiting values.
Can OE and S inputs be driven directly from a 3.3 V microcontroller?
Yes - OE and S inputs are overvoltage tolerant up to 5.5 V regardless of VCC level, allowing direct connection to 3.3 V GPIOs without level-shifting circuitry. VIH is defined at 2.0 V minimum, ensuring reliable recognition of HIGH states from 3.3 V logic.
Is there any built-in ESD protection on the A and B port pins?
No - ESD protection (HBM >2000 V, CDM >1000 V) applies only to control pins (OE, S) and power pins (VCC, GND). The A and B signal ports have no integrated ESD clamps; external TVS diodes are recommended for systems exposed to connector-level ESD events.
Does the device support hot insertion or live swapping of signals?
No - the CBT3257APW-Q100 lacks powered-off protection or IOFF isolation. When VCC = 0 V, the internal switches may conduct unpredictably due to parasitic paths. Signal routing must occur only when VCC is within 4.5 V–5.5 V and stable.
CBT3257APW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 4 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
CBT3257APW-Q100J FAQ
1.How can I place an order for CBT3257APW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for CBT3257APW-Q100J 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 CBT3257APW-Q100J reliable?
The price and inventory of CBT3257APW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CBT3257APW-Q100J is usually 5 days.
3.What payment methods are accepted for CBT3257APW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CBT3257APW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CBT3257APW-Q100J?
CBT3257APW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CBT3257APW-Q100J 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 CBT3257APW-Q100J?
For technical support, including CBT3257APW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CBT3257APW-Q100J requirements.
6.How does Aetrix verify that CBT3257APW-Q100J is sourced from the original manufacturer or authorized distributors?
All CBT3257APW-Q100J 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 CBT3257APW-Q100J meets industry standards.
7.What is the process for return or replacement of CBT3257APW-Q100J?
All CBT3257APW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with CBT3257APW-Q100J, 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 CBT3257APW-Q100J part is unused and in its original packaging.
Return procedure for CBT3257APW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CBT3257APW-Q100J Tags
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