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Nexperia USA Inc. 74CBTLV1G125GV,125
- Part No.:
- 74CBTLV1G125GV,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74CBTLV1G125GV,125.pdf
- Description:
- IC BUS SWITCH 1 X 1:1 SC74A
- Quantity:
- Payment:
- Shipping:
Inventory:11,449
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Product details
Overview
74CBTLV1G125GV,125 from Nexperia is a single high-speed CMOS bus switch with active-low output enable (OE), 5 Ω typical ON-resistance at 3.3 V, rail-to-rail signal switching, and IOFF partial power-down protection. It operates from 2.3 V to 3.6 V across –40 °C to +125 °C and is used in low-voltage data path isolation for portable computing and industrial I/O expansion.
For engineers reviewing the 74CBTLV1G125GV,125 datasheet, 74CBTLV1G125GV,125 pinout, 74CBTLV1G125GV,125 application, or 74CBTLV1G125GV,125 equivalent, key selection factors include guaranteed sub-0.3 ns propagation delay, ±10 μA IOFF leakage at VCC = 0 V, Schmitt-trigger control input tolerance, and SC-74A (SOT753) package compatibility with space-constrained PCB layouts.
Technical Context
This device implements a single-pole, single-throw (SPST) analog/digital bus switch controlled by an active-low OE input. Its CMOS transmission gate architecture enables bidirectional, rail-to-rail signal pass-through between A and B ports when enabled, with high-impedance OFF-state isolation exceeding 10⁹ Ω at 3.6 V.
The integrated IOFF circuit actively disables the switch and blocks backflow current when VCC = 0 V-critical for hot-swap and multi-rail system interoperability. Schmitt-trigger action on OE ensures robust operation with slow-rising control signals, while JESD8-5/JESD8C compliance guarantees interoperability across 2.3 V–3.6 V logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.3 V to 3.6 V - supports dual-voltage I/O domains without level shifters |
| ON-resistance (RON) | Typ. 4.2 Ω at VCC = 3.0 V, ISW = 64 mA - minimizes voltage drop and signal distortion in high-speed data paths |
| Propagation delay (tpd) | Typ. 0.16 ns at VCC = 3.3 V - preserves signal integrity up to ~2 GHz bandwidth (–3 dB @ 263 MHz) |
| IOFF leakage | ±10 μA at VCC = 0 V - prevents damaging back-current during partial power-down sequences |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood industrial and extended-temperature embedded applications |
| ESD rating | HBM >2000 V, CDM >1000 V - withstands handling and board-level ESD events without latch-up |
| Switch capacitance (Csw) | 10.3 pF (ON-state) - limits capacitive loading on high-frequency buses like USB 2.0 or MIPI D-PHY |
Pinout & Package
74CBTLV1G125GV,125 uses the SC-74A (SOT753) plastic surface-mounted package: 5-lead, 1.3 mm × 1.7 mm body, 0.65 mm pitch, 0.95 mm height, with pin 1 indicator below marking code "b25".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output enable input | Active-low control: LOW enables A↔B conduction; HIGH forces high-impedance OFF-state |
| 2 (VCC) | Positive supply | Primary power rail (2.3–3.6 V); powers internal logic and switch transistors |
| 3 (A) | Data port A | Bidirectional I/O terminal; connects to upstream data source or controller |
| 4 (GND) | Ground reference | 0 V return path for supply and signal currents; must be low-impedance for noise immunity |
| 5 (B) | Data port B | Bidirectional I/O terminal; connects to downstream load or peripheral bus segment |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports full 0 V to VCC signal swing on A/B ports-enables use with mixed-voltage interfaces without clamping diodes |
| IOFF partial power-down | Automatically disables switch and blocks reverse current when VCC = 0 V-essential for live-insertion and multi-supply systems |
| Schmitt-trigger OE input | Hysteresis ≥0.5 V at VCC = 3.3 V-tolerates slow or noisy enable signals without chatter or metastability |
| Overvoltage-tolerant control | OE accepts inputs up to 3.6 V independent of VCC-allows direct interfacing with 3.3 V controllers even at 2.3 V VCC |
| Low dynamic power | ICC ≤ 200 μA at VCC = 3.6 V-reduces quiescent current in always-on I/O isolation paths |
Applications
| USB 2.0 Data Line Isolation | Industrial Sensor Interface Multiplexing |
|---|---|
|
Use Scenario: Isolating D+ and D− lines between host controller and removable peripheral modules in factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling/disabling USB 2.0 differential pair connection under microcontroller control. Use Value: Prevents signal reflections and ground loop currents during hot-plug events while maintaining <100 ps timing skew between D+/D−. |
Use Scenario: Sharing a single ADC input among multiple analog sensors (e.g., temperature, pressure, humidity) in a programmable logic controller. IC Role / Device Role / Timing Role: Low-RON analog multiplexer selecting one sensor output to feed into precision ADC front-end. Use Value: 5 Ω RON introduces <0.01% gain error at 10 kΩ source impedance; 10.3 pF Csw limits settling time to <50 ns. |
| Low-Voltage Memory Bus Expansion | Portable Device Power-Rail Sequencing |
|
Use Scenario: Adding external SRAM or flash memory to a battery-powered MCU without violating core logic voltage domain boundaries. IC Role / Device Role / Timing Role: Voltage-domain-transparent data path isolator between 2.5 V MCU bus and 3.3 V memory interface. Use Value: Rail-to-rail switching preserves full logic swing; IOFF blocks backfeed from powered memory to unpowered MCU during sleep mode. |
Use Scenario: Enabling/disabling power to RF transceiver modules based on wireless activity state in wearable health monitors. IC Role / Device Role / Timing Role: Controlled power-path switch decoupling subsystem supply rails during deep-sleep cycles. Use Value: Sub-5 ns enable/disable times allow precise sequencing; ±10 μA IOFF leakage extends battery life by >10 years in standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT1G125DBVR | Higher RON (6.5 Ω typ. at 3.3 V), wider VCC range (4.5–5.5 V), no IOFF | Requires external power sequencing; unsuitable for partial power-down systems | Select only if operating at 5 V and IOFF is not required |
| 74LVC1G3157GW,125 | SPDT configuration, higher Csw (17 pF), same IOFF and RON specs | Supports 1:2 signal routing instead of simple ON/OFF isolation | Choose when signal path selection-not just enable/disable-is needed |
Compared with SN74CBT1G125DBVR, 74CBTLV1G125GV,125 delivers lower RON and essential IOFF for modern low-voltage systems; versus 74LVC1G3157GW,125, it offers simpler SPST topology and reduced capacitive loading for point-to-point isolation.
Availability
74CBTLV1G125GV,125 is available at Aetrix Electronics and suitable for USB 2.0 interface isolation, industrial sensor multiplexing, and low-voltage memory bus expansion requiring stable component supply across extended temperature ranges.
Supply support for 74CBTLV1G125GV,125 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 delivering high-performance, reliable, and energy-efficient components for automotive, industrial, and consumer electronics.
The 74CBTLV1G125 belongs to Nexperia's CBTLV (Configurable Bus Transceiver Low-Voltage) family, engineered specifically for low-latency, low-power signal routing in space-constrained, multi-rail embedded systems.
FAQ
What is the maximum allowable voltage on the A or B port when VCC = 0 V?
The absolute maximum switch voltage (VSW) is –0.5 V to VCC + 0.5 V. When VCC = 0 V, A and B may safely tolerate –0.5 V to +0.5 V. Exceeding this risks permanent damage per IEC 60134 limiting values. IOFF blocks current flow but does not extend voltage ratings beyond specification limits.
Can OE be left floating during operation?
No. OE must be actively driven HIGH or LOW. Leaving OE floating violates recommended operating conditions and may cause undefined switch state, increased ICC, or oscillation due to input threshold ambiguity. Tie OE to VCC via pull-up resistor (value determined by driver sink capability) for default-OFF behavior.
Does the 74CBTLV1G125GV,125 support hot-swap insertion?
Yes-its IOFF circuitry ensures zero backflow current when VCC is unpowered, satisfying hot-swap requirements per JEDEC JESD78 Class I latch-up immunity and enabling safe insertion into live backplanes. However, signal voltage on A/B must remain within –0.5 V to VCC + 0.5 V at all times, including during insertion.
How does temperature affect ON-resistance performance?
RON increases with temperature: at VCC = 3.0 V and ISW = 64 mA, RON rises from typ. 4.2 Ω at 25 °C to max. 11.0 Ω at +125 °C. This 160% increase impacts voltage drop and rise/fall times-designers must verify signal integrity margins across the full –40 °C to +125 °C range using worst-case RON values.
74CBTLV1G125GV,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74CBTLV
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 1 x 1:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74A
74CBTLV1G125GV,125 FAQ
1.How can I place an order for 74CBTLV1G125GV,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV1G125GV,125 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 74CBTLV1G125GV,125 reliable?
The price and inventory of 74CBTLV1G125GV,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV1G125GV,125 is usually 5 days.
3.What payment methods are accepted for 74CBTLV1G125GV,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV1G125GV,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV1G125GV,125?
74CBTLV1G125GV,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV1G125GV,125 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 74CBTLV1G125GV,125?
For technical support, including 74CBTLV1G125GV,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV1G125GV,125 requirements.
6.How does Aetrix verify that 74CBTLV1G125GV,125 is sourced from the original manufacturer or authorized distributors?
All 74CBTLV1G125GV,125 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 74CBTLV1G125GV,125 meets industry standards.
7.What is the process for return or replacement of 74CBTLV1G125GV,125?
All 74CBTLV1G125GV,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV1G125GV,125, 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 74CBTLV1G125GV,125 part is unused and in its original packaging.
Return procedure for 74CBTLV1G125GV,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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