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Nexperia USA Inc. CBT3245ABQ-Q100X
- Part No.:
- CBT3245ABQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
CBT3245ABQ-Q100X.pdf
- Description:
- IC BUS SWITCH 8 X 1:1 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,540
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Product details
Overview
CBT3245ABQ-Q100 from Nexperia is an AEC-Q100 Grade 3 qualified octal bus switch with 8 independent single-pole single-throw (SPST) analog switches, 5 Ω typical ON resistance at 4.5 V, IOFF-enabled partial power-down capability, and DHVQFN20 package with side-wettable flanks for AOI. It serves as a bidirectional signal routing device in automotive infotainment data buses.
For engineers reviewing the CBT3245ABQ-Q100 datasheet, CBT3245ABQ-Q100 pinout, CBT3245ABQ-Q100 application, or CBT3245ABQ-Q100 equivalent, this page delivers verified functional role, automotive-grade thermal and ESD specs, OE-controlled switching timing (≤5.9 ns disable), and precise pin-level interface guidance for CAN/LIN subsystem interconnects and display data path isolation.
Technical Context
The CBT3245ABQ-Q100 implements TTL-compatible control logic with active-low OE enabling simultaneous conduction across all eight A↔B channels. Its IOFF circuitry ensures leakage current remains below ±5 μA when VCC = 0 V, enabling safe hot insertion in powered-backplane systems.
Each switch exhibits matched RON (5–7 Ω typ. at 4.5 V, 64 mA), sub-0.25 ns propagation delay, and overvoltage-tolerant OE inputs up to 5.5 V - allowing direct interfacing with 3.3 V logic controllers driving 5 V data lanes without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Count | 8 independent bidirectional SPST analog switches |
| RON (Typ.) | 5 Ω at VCC = 4.5 V, 64 mA - enables <100 mV drop at 20 mA I/O signals |
| tDIS (Max) | 6.0 ns - supports >100 MHz digital bus switching with clean edge integrity |
| IOFF Leakage | ±5 μA max at VCC = 0 V - prevents back-powering of unpowered subsystems |
| VIO Tolerance | OE input withstands up to 5.5 V - allows mixed-voltage control in 3.3 V/5 V hybrid domains |
| ESD Rating | HBM >2000 V - meets automotive board-level ESD immunity requirements per ISO 10605 |
| Operating Temp | -40 °C to +85 °C - certified for engine bay and cabin electronics mounting |
Pinout & Package
DHVQFN20 package (SOT764-1), 2.5 × 4.5 × 0.85 mm body, side-wettable flanks for automated optical inspection of solder joints; thermal-enhanced construction supports continuous 128 mA per channel operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A8 | Data port A (bidirectional) | Input/output node for first side of each switch; electrically identical to Bn |
| B1–B8 | Data port B (bidirectional) | Input/output node for second side of each switch; routed to matching An |
| OE | Output enable (active LOW) | Drives all 8 switches ON when LOW; places all channels in high-Z OFF state when HIGH |
| VCC | Positive supply | Supplies switch bias; must be 4.0–5.5 V for guaranteed RON and timing performance |
| GND | Ground reference | 0 V return for all switch paths and control logic; thermal pad (Pin 10) must be connected to PCB ground plane |
| n.c. | No connect | Pin 1 is physically present but internally unconnected; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 3 qualification | Validated for automotive use across -40 °C to +85 °C ambient, including temperature cycling and HAST reliability testing |
| IOFF partial power-down | Enables system-level power gating: switches remain high-Z even when VCC = 0 V, preventing backfeed into unpowered rails |
| Side-wettable flanks (SWF) | Enables 100% automated optical inspection of bottom-solder joints in DHVQFN20 - critical for automotive zero-defect manufacturing |
| Overvoltage-tolerant OE | Accepts 0–5.5 V control signals regardless of VCC level - eliminates need for external level translators in mixed-voltage designs |
| Low capacitance switching | Cio(off) = 6.6 pF - minimizes signal distortion on high-speed parallel buses (e.g., display RGB, camera MIPI D-PHY auxiliary lines) |
Applications
| Automotive Infotainment Data Routing | Instrument Cluster Display Interface |
|---|---|
Use Scenario: Isolating audio/video data paths between head unit SoC and rear-seat entertainment modules during sleep mode. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling/disabling HDMI/MIPI-DSI lanes under OE control with <6 ns disable time. Use Value: Prevents signal leakage and cross-talk during low-power states while maintaining full bandwidth (≥1 Gbps) when active. |
Use Scenario: Multiplexing multiple display panels (LCD, OLED) to a single graphics controller output in digital dashboards. IC Role / Device Role / Timing Role: Octal bus switch providing channel-selectable pixel data routing with matched RON across all lanes. Use Value: Ensures uniform rise/fall times and skew <50 ps between RGB channels, eliminating color fringing artifacts. |
| Body Control Module Sensor Bus Sharing | ADAS Camera Data Path Protection |
Use Scenario: Sharing LIN or SENT sensor data lines among multiple ECUs without signal contention. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating sensor outputs during diagnostic or calibration sequences. Use Value: IOFF compliance guarantees <5 μA leakage at 0 V VCC - avoids false wake-up triggers in always-on sensor nodes. |
Use Scenario: Protecting image sensor data lines from ESD events during camera module hot-plug in surround-view systems. IC Role / Device Role / Timing Role: High-ESD-tolerance (HBM >2 kV) bidirectional switch placed inline with MIPI CSI-2 differential pairs. Use Value: Maintains signal integrity (Cio(off) = 6.6 pF) while diverting >2 kV transients safely to GND via internal clamps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3245APWTR | Non-automotive grade (commercial temp only); same RON and timing, but lacks AEC-Q100 qualification and IOFF spec | Not suitable for under-hood or safety-critical modules; limited to cabin-only consumer-grade infotainment | Select only if automotive qualification and extended temperature operation are not required |
| 74LVC2G66DP-Q100 | Dual-channel only (vs. octal); lower RON (0.5 Ω), but no IOFF and narrower VCC range (1.65–5.5 V) | Requires four units to match channel count; unsuitable for space-constrained ADAS modules needing single-package integration | Prefer when ultra-low RON is critical and board area permits multi-device layout |
Compared with SN74CBT3245APWTR and 74LVC2G66DP-Q100, the CBT3245ABQ-Q100 uniquely combines AEC-Q100 Grade 3 compliance, full octal integration, IOFF support, and side-wettable flanks - making it the only option qualified for single-package, zero-defect automotive data routing in production vehicles.
Availability
CBT3245ABQ-Q100 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital instrument clusters, body control modules, and ADAS camera interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CBT3245ABQ-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, discrete, and MOSFET solutions optimized for automotive, industrial, and mobile markets.
The CBT3245ABQ-Q100 belongs to Nexperia's automotive-qualified analog switch product line, engineered specifically for robust signal routing in harsh-temperature, high-reliability vehicle subsystems where power sequencing and ESD resilience are mandatory.
FAQ
Can CBT3245ABQ-Q100 operate with VCC = 3.3 V?
No. The datasheet specifies a minimum VCC of 4.0 V for guaranteed operation. At 3.3 V, RON increases significantly (>15 Ω), tDIS degrades beyond 6 ns, and IOFF protection is no longer assured. Use only within 4.0–5.5 V range per Table 5.
Is Pin 1 (n.c.) required to be grounded or left floating?
Pin 1 is a mechanical dummy pad with no internal connection. It may be left unconnected or tied to GND for mechanical stability, but must never be used as a signal or power path. Soldering it to GND is acceptable only if the land remains electrically isolated from other nets.
Does the CBT3245ABQ-Q100 support hot-swap insertion?
Yes - its IOFF feature ensures all switches enter high-Z state when VCC = 0 V, limiting leakage current to ±5 μA. This prevents back-driving powered circuitry during live insertion, satisfying automotive hot-swap requirements per ISO 16750-3.
What is the maximum capacitive load the CBT3245ABQ-Q100 can drive?
The device is characterized up to 50 pF load capacitance (Table 9). Driving >50 pF increases propagation delay nonlinearly and may cause signal integrity issues. For loads >50 pF, add series termination or buffer amplification per application note AN10771.
CBT3245ABQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74CBT
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 8 x 1:1
- 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:
- 20-DHVQFN (4.5x2.5)
CBT3245ABQ-Q100X FAQ
1.How can I place an order for CBT3245ABQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for CBT3245ABQ-Q100X 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 CBT3245ABQ-Q100X reliable?
The price and inventory of CBT3245ABQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CBT3245ABQ-Q100X is usually 5 days.
3.What payment methods are accepted for CBT3245ABQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CBT3245ABQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CBT3245ABQ-Q100X?
CBT3245ABQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CBT3245ABQ-Q100X 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 CBT3245ABQ-Q100X?
For technical support, including CBT3245ABQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CBT3245ABQ-Q100X requirements.
6.How does Aetrix verify that CBT3245ABQ-Q100X is sourced from the original manufacturer or authorized distributors?
All CBT3245ABQ-Q100X 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 CBT3245ABQ-Q100X meets industry standards.
7.What is the process for return or replacement of CBT3245ABQ-Q100X?
All CBT3245ABQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with CBT3245ABQ-Q100X, 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 CBT3245ABQ-Q100X part is unused and in its original packaging.
Return procedure for CBT3245ABQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CBT3245ABQ-Q100X Tags
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SN74HC138DR
Texas Instruments
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TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
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74CBTLV3257PW,118
Nexperia USA Inc.
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SN74CBTLV3257PWR
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74CBTLV3257GUX
Nexperia USA Inc.
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74HC154BQ,118
Nexperia USA Inc.
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P3S0200GMX
NXP USA Inc.
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SN74CB3Q3245PWR
Texas Instruments
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SN74CB3Q3257RGYR
Texas Instruments
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TCA9543APWR
Texas Instruments
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TCA9546APWR
Texas Instruments
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SN74HC138N
Texas Instruments
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