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Toshiba Semiconductor and Storage TC7WPB9307FK,LF(CT
- Part No.:
- TC7WPB9307FK,LF(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
TC7WPB9307FK,LF(CT.pdf
- Description:
- IC BUS SWITCH 2 X 1:1 US8
- Quantity:
- Payment:
- Shipping:
Inventory:11,334
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Product details
Overview
TC7WPB9307FK,LF(CT from Toshiba Electronic Devices & Storage Corporation is a 2-bit dual-supply bus switch IC enabling bidirectional level-shifting between 1.65–5.0 V on VCCA and 2.3–5.5 V on VCCB, with active-low Output Enable (OE), 5.5 V-tolerant OE input, and 5.0 Ω typical ON-resistance at 3.0 V/4.5 V. It supports automotive-grade operation (AEC-Q100 Grade 1) and isolates buses when disabled.
For engineers reviewing the TC7WPB9307FK,LF(CT datasheet, TC7WPB9307FK,LF(CT pinout, TC7WPB9307FK,LF(CT application, or TC7WPB9307FK,LF(CT equivalent, this device serves as a low-power, voltage-flexible interface for mixed-voltage I²C, SMBus, GPIO, and control-bus systems where precise enable polarity and robust power-down protection are required.
Technical Context
The TC7WPB9307FK,LF(CT implements two independent n-channel MOSFET-based switches controlled by a single active-low OE signal, allowing simultaneous on/off control of both A–B data paths. Its dual-supply architecture enables true bidirectional level translation without direction pins or external logic.
VCCA must be ≤ VCCB per datasheet Note 1; level-shifting functionality requires external pull-up resistors tied to either VCCA or VCCB. The device provides 5.5 V tolerance and power-down protection on OE, with ESD-protected inputs and guaranteed operation from –40 °C to +125 °C for (CT-suffixed variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 1.65 V to 5.0 V - supports 1.8 V, 2.5 V, and 3.3 V logic domains |
| VCCB Range | 2.3 V to 5.5 V - interfaces with 2.5 V, 3.3 V, and 5.0 V buses |
| ON-Resistance | 5.0 Ω typ. @ VCCA=3.0 V, VCCB=4.5 V - ensures minimal voltage drop and signal integrity at 30 mA |
| OE Polarity | Active-Low - switch conducts when OE = Low; high-impedance isolation when OE = High |
| OE Voltage Tolerance | 5.5 V tolerant - allows direct connection to 5 V control signals without level shifters |
| Operating Temp | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| Propagation Delay | 0.5–2.4 ns max - negligible delay contribution in high-speed digital interfaces |
Pinout & Package
TC7WPB9307FK,LF(CT is housed in an ultra-small US8 package (JEDEC SOT-765), 2.1 mm × 2.0 mm × 0.55 mm, weighing 0.01 g, optimized for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Switch Input/Output Port A | Bidirectional data terminal connected to VCCA-side bus; requires external pull-up for level-shifting up |
| 2 (B1) | Switch Input/Output Port B | Bidirectional data terminal connected to VCCB-side bus; requires external pull-up for level-shifting down |
| 3 (GND) | Ground Reference | Common return path for both supplies; must be connected to system ground plane |
| 4 (VCCA) | Low-Side Supply | Power rail for A-side logic (1.65–5.0 V); defines VIH/VIL thresholds for OE |
| 5 (OE) | Active-Low Enable Control | 5.5 V-tolerant input; drives both switches ON when low, OFF when high |
| 6 (VCCB) | High-Side Supply | Power rail for B-side logic (2.3–5.5 V); must be ≥ VCCA per datasheet requirement |
| 7 (A2) | Switch Input/Output Port A | Second bidirectional A-side channel; shares same OE control as A1 |
| 8 (B2) | Switch Input/Output Port B | Second bidirectional B-side channel; shares same OE control as B1 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive applications requiring –40 °C to +125 °C operation and reliability compliance |
| Dual-supply level-shifting | Enables seamless interconnection between 1.8 V/2.5 V/3.3 V and 3.3 V/5.0 V subsystems without direction control |
| 5.5 V-tolerant OE input | Eliminates need for external level shifters when driven by 5 V microcontrollers or FPGAs |
| Low ON-resistance (5.0 Ω typ.) | Minimizes insertion loss and maintains signal rise/fall times across full operating voltage range |
| Power-down protection | Prevents back-powering and leakage when OE is inactive, ensuring bus isolation during sleep modes |
Applications
| I²C Bus Level Translation | SMBus Interface Bridging |
|---|---|
Use Scenario: Connecting a 1.8 V microcontroller I²C master to a 3.3 V sensor slave in an ADAS camera module. IC Role / Device Role / Timing Role: Bidirectional level translator for SDA/SCL lines, preserving I²C timing and open-drain behavior. Use Value: Enables interoperability without pull-up conflicts or signal degradation; supports 400 kHz Fast-mode operation with <2.4 ns propagation delay. | Use Scenario: Interfacing a 2.5 V baseband processor with a 5.0 V battery management IC via SMBus in an EV powertrain controller. IC Role / Device Role / Timing Role: Dual-channel voltage translator maintaining SMBus packet integrity and ACK/NACK timing margins. Use Value: Eliminates need for discrete MOSFET translators; 5.5 V-tolerant OE allows direct control from 5 V host logic. |
| GPIO Voltage Translation | Control-Bus Isolation |
Use Scenario: Routing 3.3 V FPGA configuration GPIOs to 5.0 V peripheral reset lines in an industrial PLC I/O module. IC Role / Device Role / Timing Role: Active-Low enabled bidirectional switch providing voltage-adapted control signaling with fail-safe isolation. Use Value: Prevents overvoltage damage to FPGA outputs; OE-controlled shutdown ensures clean reset sequencing during power-up. | Use Scenario: Isolating a 1.8 V SoC debug interface from a 3.3 V test access port during firmware update in an automotive infotainment head unit. IC Role / Device Role / Timing Role: Dual-channel bus switch acting as a programmable isolation barrier with zero-latency pass-through when enabled. Use Value: Guarantees no signal distortion during active debug sessions; complete electrical decoupling when OE is high. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC4T245RTER | 4-bit, auto-direction sensing, higher ICC (20 µA typ.), no AEC-Q100 qualification | Requires no OE control but lacks automotive temperature grade and 5.5 V OE tolerance | Preferred for non-automotive, higher-channel-count applications where direction detection simplifies design |
| NLVSX4373MUTAG | 2-bit, active-high OE, 3.6 V max VCCB, –40 °C to +85 °C only | Limited to commercial temp range and lower VCCB; no 5 V tolerance on control inputs | Suitable for cost-sensitive consumer electronics where extended temperature and 5 V compatibility are not required |
Compared with SN74AVC4T245RTER and NLVSX4373MUTAG, the TC7WPB9307FK,LF(CT delivers AEC-Q100 Grade 1 reliability, wider dual-supply ranges (up to 5.5 V), and 5.5 V-tolerant active-low OE-making it uniquely suited for automotive and industrial systems demanding robustness, voltage flexibility, and deterministic enable control.
Availability
TC7WPB9307FK,LF(CT is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC I/O modules, and EV battery management systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for TC7WPB9307FK,LF(CT 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor solutions for automotive, industrial, and computing markets, with emphasis on power efficiency, functional safety, and long-lifecycle support.
The TC7WPB9307FK,LF(CT belongs to Toshiba's TC7WPB dual-supply bus switch family, engineered specifically for voltage-level bridging in mixed-supply systems where AEC-Q100 compliance, low ON-resistance, and robust power-down behavior are critical.
FAQ
What is the OE polarity of the TC7WPB9307FK,LF(CT and how does it affect system control?
The TC7WPB9307FK,LF(CT features an active-low Output Enable (OE) input: the internal switches conduct when OE is low and enter high-impedance isolation when OE is high. This polarity allows direct interfacing with open-drain or active-low reset signals common in automotive microcontrollers. Unlike its sibling TC7WPB9306FK,LF(CT (active-high OE), the TC7WPB9307FK,LF(CT ensures fail-safe bus isolation during power-up or MCU reset sequences where OE defaults high.
Does the TC7WPB9307FK,LF(CT support bidirectional level-shifting between 1.8 V and 5.0 V buses?
Yes, the TC7WPB9307FK,LF(CT supports bidirectional level-shifting across VCCA = 1.65–5.0 V and VCCB = 2.3–5.5 V, including 1.8 V ↔ 5.0 V translation. This is achieved using external pull-up resistors on A1/A2 to VCCA and B1/B2 to VCCB. The device imposes no restriction on relative voltage magnitudes beyond the requirement that VCCA ≤ VCCB, and its n-MOSFET structure ensures symmetrical conduction in both directions.
What is the maximum allowable voltage difference between VCCA and VCCB for the TC7WPB9307FK,LF(CT?
The TC7WPB9307FK,LF(CT does not specify a maximum voltage difference between VCCA and VCCB, but mandates that VCCA ≤ VCCB per datasheet Note 1. Absolute maximum ratings allow VCCA and VCCB each up to 7.0 V independently, and the switch I/O voltage (VS) is rated from –0.5 V to 7.0 V. In practice, the widest validated combination is VCCA = 1.65 V and VCCB = 5.5 V, confirmed in level-shift characterization tables for translating up/down functions.
Is the TC7WPB9307FK,LF(CT pin-compatible with the TC7WPB9306FK,LF(CT?
Yes, the TC7WPB9307FK,LF(CT and TC7WPB9306FK,LF(CT share identical US8 packaging, pin assignment, and electrical pin functions-including A1, B1, GND, VCCA, OE, VCCB, A2, and B2. The sole functional difference is OE polarity: TC7WPB9307FK,LF(CT uses active-low OE, while TC7WPB9306FK,LF(CT uses active-high OE. No PCB layout change is needed when substituting between them, provided OE drive logic is inverted accordingly.
What thermal and reliability qualifications apply to the TC7WPB9307FK,LF(CT?
The TC7WPB9307FK,LF(CT is AEC-Q100 Grade 1 qualified (Rev. H), certified for continuous operation from –40 °C to +125 °C ambient temperature. Its qualification covers stress testing for temperature cycling, HTOL, ESD (HBM >2 kV), and latch-up immunity. The (CT suffix explicitly denotes the extended temperature grade; devices without (CT are rated only to +85 °C. All units undergo 100% final test and traceable lot control per Toshiba's automotive quality system.
TC7WPB9307FK,LF(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7WP
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 2 x 1:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Dual Supply
- Voltage - Supply:
- 1.65V ~ 5V, 2.3V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
TC7WPB9307FK,LF(CT FAQ
1.How can I place an order for TC7WPB9307FK,LF(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7WPB9307FK,LF(CT 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 TC7WPB9307FK,LF(CT reliable?
The price and inventory of TC7WPB9307FK,LF(CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7WPB9307FK,LF(CT is usually 5 days.
3.What payment methods are accepted for TC7WPB9307FK,LF(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7WPB9307FK,LF(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7WPB9307FK,LF(CT?
TC7WPB9307FK,LF(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7WPB9307FK,LF(CT 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 TC7WPB9307FK,LF(CT?
For technical support, including TC7WPB9307FK,LF(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7WPB9307FK,LF(CT requirements.
6.How does Aetrix verify that TC7WPB9307FK,LF(CT is sourced from the original manufacturer or authorized distributors?
All TC7WPB9307FK,LF(CT 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 TC7WPB9307FK,LF(CT meets industry standards.
7.What is the process for return or replacement of TC7WPB9307FK,LF(CT?
All TC7WPB9307FK,LF(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7WPB9307FK,LF(CT, 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 TC7WPB9307FK,LF(CT part is unused and in its original packaging.
Return procedure for TC7WPB9307FK,LF(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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