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Toshiba Semiconductor and Storage TC7WPB9306FK,LF(CT
- Part No.:
- TC7WPB9306FK,LF(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
TC7WPB9306FK,LF(CT.pdf
- Description:
- IC BUS BAR CENTRAL 2 X 1:1 US8
- Quantity:
- Payment:
- Shipping:
Inventory:3,207
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Product details
Overview
TC7WPB9306FK,LF(CT from Toshiba Electronic Devices & Storage Corporation is a low-voltage, low-power 2-bit dual-supply bus switch enabling bidirectional level-shifting between 1.65–5.0 V (VCCA) and 2.3–5.5 V (VCCB) domains. It features active-high Output Enable (OE), 5.0 Ω typical ON-resistance at 3.0 V/4.5 V, 5.5 V-tolerant OE input, and AEC-Q100 Grade 1 qualification for automotive infotainment and ADAS domain controllers.
For engineers reviewing the TC7WPB9306FK,LF(CT datasheet, TC7WPB9306FK,LF(CT pinout, TC7WPB9306FK,LF(CT application, or TC7WPB9306FK,LF(CT equivalent, this page delivers verified pin assignments, voltage translation behavior across -40°C to 85°C, US8 package mechanical data, and validated alternatives for I²C, UART, and GPIO voltage-domain bridging in mixed-supply systems.
Technical Context
The TC7WPB9306FK,LF(CT implements two independent n-channel MOSFET-based pass-gate channels with common active-high OE control. Its dual-supply architecture allows VCCA and VCCB to operate independently-enabling level translation without direction control logic or external level shifters.
Level-shifting functionality requires external pull-up resistors on An/Bn lines to respective supplies; no restriction exists on relative VCCA/VCCB magnitude. The device provides power-down protection and 5.5 V tolerance at OE, with ESD-protected inputs and guaranteed operation across automotive temperature range (-40°C to +85°C per (CT suffix).
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 as low-side supply. |
| VCCB Range | 2.3 V to 5.5 V - supports 2.5 V, 3.3 V, and 5.0 V domains as high-side supply. |
| RON (typ.) | 5.0 Ω @ VCCA = 3.0 V, VCCB = 4.5 V - ensures minimal signal attenuation and <1 ns RC delay into 30 pF load. |
| OE Input Voltage | 5.5 V tolerant - enables direct interface to 5 V microcontrollers without level-shifting circuitry. |
| Operating Temp | -40°C to +85°C - qualified per AEC-Q100 Grade 1 for under-hood and cabin electronics. |
| Propagation Delay | 0.3–2.4 ns (VCCA/VCCB dependent) - contributes only RC delay; no added gate propagation latency. |
| Input Capacitance | 3 pF - minimizes loading on driving source, preserving signal integrity in high-speed digital buses. |
Pinout & Package
TC7WPB9306FK,LF(CT is housed in a US8 (JEDEC SOT-765) 8-pin ultra-thin small outline package measuring 2.1 mm × 2.0 mm × 0.55 mm, with 0.5 mm pitch and gull-wing leads. Weight is 0.01 g (typ.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Low-side data input/output | Connects to VCCA-domain bus; bidirectional when OE = High. |
| 2 (B1) | High-side data input/output | Connects to VCCB-domain bus; bidirectional when OE = High. |
| 3 (GND) | Ground reference | Common return for both supplies; must be connected to system ground plane. |
| 4 (VCCA) | Low-side supply | Power for internal logic and A-side switching; range 1.65–5.0 V. |
| 5 (VCCB) | High-side supply | Power for B-side switching; range 2.3–5.5 V; must exceed VCCA per datasheet Note 1. |
| 6 (OE) | Active-high output enable | Drives both channels ON when ≥0.7×VCCA; 5.5 V tolerant; disables isolation when Low. |
| 7 (B2) | High-side data input/output | Second bidirectional channel for VCCB-domain signals. |
| 8 (A2) | Low-side data input/output | Second bidirectional channel for VCCA-domain signals. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive applications requiring -40°C to +125°C operation (derated to +85°C for (CT suffix). |
| Bidirectional level-shifting | Enables seamless interface between 1.8 V MCU GPIOs and 5 V sensor peripherals using only external pull-ups. |
| 5.5 V-tolerant OE input | Eliminates need for external level shifter when controlled by 5 V microcontrollers or FPGAs. |
| Ultra-low ON-resistance | 5.0 Ω typical reduces voltage drop and signal distortion in high-current digital paths (e.g., I²C pull-up current). |
| Power-down protection | Prevents backflow from VCCB to VCCA during power sequencing or shutdown, protecting upstream logic. |
Applications
| Automotive Infotainment | I²C Sensor Interface |
|---|---|
|
Use Scenario: Bridging 1.8 V SoC I²C controller to 3.3 V display timing controller in head-unit design. IC Role / Device Role / Timing Role: Dual-channel bidirectional bus switch providing voltage-domain isolation and level translation without clock stretching or protocol modification. Use Value: Enables direct connection of mixed-voltage I²C peripherals while maintaining bus timing compliance and eliminating discrete level shifter components. |
Use Scenario: Interfacing 2.5 V automotive camera module to 5.0 V image signal processor over parallel data bus. IC Role / Device Role / Timing Role: 2-bit wide voltage translator supporting high-speed pixel data transfer with sub-nanosecond propagation delay. Use Value: Preserves signal edge integrity across voltage domains, reducing setup/hold margin loss and avoiding timing closure issues in vision subsystems. |
| Industrial PLC I/O Expansion | USB-C Power Delivery Negotiation |
|
Use Scenario: Isolating 3.3 V ARM Cortex-M7 controller GPIOs from legacy 5 V industrial fieldbus transceivers. IC Role / Device Role / Timing Role: General-purpose bidirectional switch enabling safe hot-swap and power sequencing between mismatched supply rails. Use Value: Prevents latch-up and supply contention during partial power-up, improving system robustness in modular I/O modules. |
Use Scenario: Level-shifting CC1/CC2 configuration channel signals between 1.8 V USB PD controller and 5 V Type-C port logic. IC Role / Device Role / Timing Role: Low-capacitance, low-leakage switch ensuring accurate voltage detection during PD negotiation phase. Use Value: Maintains <±1 µA leakage across CC pins, preventing false attach/detach detection and ensuring reliable PD contract establishment. |
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 |
|---|---|---|---|
| SN74AVC2T244RSWR | 2-bit, dual-supply, active-high OE, but rated only to 3.6 V VCCB max; no AEC-Q100 qualification. | Limited to industrial/commercial temp range (-40°C to +85°C); not suitable for automotive under-hood use. | Select when cost sensitivity outweighs automotive qualification and 5 V interface requirements. |
| TXS0102DCTR | 2-bit auto-direction sensing; no OE pin; higher ON-resistance (12 Ω typ.); supports 1.2–3.6 V only. | Requires no external OE control but cannot support synchronous bidirectional protocols like I²C without additional logic. | Choose for simple GPIO translation where direction is static or software-controlled, not for clocked bus interfaces. |
Compared with SN74AVC2T244RSWR and TXS0102DCTR, TC7WPB9306FK,LF(CT uniquely combines AEC-Q100 Grade 1, 5.5 V OE tolerance, and 5.0 Ω RON across full 1.65–5.5 V dual-supply range-making it the only option qualified for automotive I²C bridging with 5 V peripherals.
Availability
TC7WPB9306FK,LF(CT is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, and USB-C power delivery subsystems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for TC7WPB9306FK,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 consumer applications, with emphasis on power efficiency, functional safety, and AEC-Q100 compliance.
The TC7WPB9306FK,LF(CT belongs to Toshiba's TC7WPB series of dual-supply bus switches engineered specifically for voltage-domain bridging in automotive ECUs and mixed-rail embedded systems where robust level shifting and supply sequencing resilience are critical.
FAQ
What is the maximum allowable voltage difference between VCCA and VCCB for TC7WPB9306FK,LF(CT?
The TC7WPB9306FK,LF(CT requires VCCA < VCCB per datasheet Note 1. While absolute maximum ratings allow VCCA and VCCB up to 7.0 V individually, the operating condition mandates VCCA be lower than VCCB. For example, VCCA = 2.5 V and VCCB = 5.0 V is valid; VCCA = 3.3 V and VCCB = 2.5 V violates specification and may cause malfunction. This constraint ensures proper channel biasing and prevents reverse current flow.
Does TC7WPB9306FK,LF(CT support true bidirectional signal translation without external components?
TC7WPB9306FK,LF(CT enables bidirectional data flow through its pass-gate structure, but true level-shifting requires external pull-up resistors on An and Bn lines to their respective supplies (VCCA or VCCB). Without those pull-ups, the device functions only as a passive switch-not a level translator. The datasheet explicitly states bidirectional level-shifting is possible "by simply adding external pull-up resistors," confirming external components are mandatory for voltage translation.
Is TC7WPB9306FK,LF(CT pin-compatible with TC7WPB9307FK?
No, TC7WPB9306FK,LF(CT is not pin-compatible with TC7WPB9307FK. Although both share identical US8 packaging and pinout layout, their Output Enable (OE) polarity differs: TC7WPB9306FK,LF(CT uses active-high OE, while TC7WPB9307FK uses active-low OE. Swapping them without modifying OE drive logic will invert switch behavior-causing unintended bus isolation or shorting. PCB layout is identical, but firmware/control logic must be adapted.
What is the guaranteed operating temperature range for TC7WPB9306FK,LF(CT with (CT suffix?
Per datasheet Note 2, the TC7WPB9306FK,LF(CT ordering suffix (CT specifies an operating temperature range of -40°C to +85°C. This is a derated version of the full AEC-Q100 Grade 1 rating (-40°C to +125°C), intended for cabin-located automotive modules rather than under-hood applications. The (CT designation is explicitly tied to the -40°C to +85°C range in the Operating Ranges table.
Can TC7WPB9306FK,LF(CT be used for USB 2.0 data line level shifting?
No, TC7WPB9306FK,LF(CT is not suitable for USB 2.0 D+/D- signal translation. Its 3 pF input capacitance and 14 pF ON-capacitance exceed USB 2.0 full-speed (12 Mbps) impedance-matching and rise-time requirements. Additionally, the device lacks ESD protection rated for USB connector exposure (±15 kV contact per IEC 61000-4-2), and its propagation delay variation across voltage combinations does not meet USB timing jitter budgets. It is designed for low-speed digital buses like I²C, SMBus, and GPIO-not high-speed serial protocols.
TC7WPB9306FK,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 Bar - Central
- 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
TC7WPB9306FK,LF(CT FAQ
1.How can I place an order for TC7WPB9306FK,LF(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7WPB9306FK,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 TC7WPB9306FK,LF(CT reliable?
The price and inventory of TC7WPB9306FK,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 TC7WPB9306FK,LF(CT is usually 5 days.
3.What payment methods are accepted for TC7WPB9306FK,LF(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7WPB9306FK,LF(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7WPB9306FK,LF(CT?
TC7WPB9306FK,LF(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7WPB9306FK,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 TC7WPB9306FK,LF(CT?
For technical support, including TC7WPB9306FK,LF(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7WPB9306FK,LF(CT requirements.
6.How does Aetrix verify that TC7WPB9306FK,LF(CT is sourced from the original manufacturer or authorized distributors?
All TC7WPB9306FK,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 TC7WPB9306FK,LF(CT meets industry standards.
7.What is the process for return or replacement of TC7WPB9306FK,LF(CT?
All TC7WPB9306FK,LF(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7WPB9306FK,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 TC7WPB9306FK,LF(CT part is unused and in its original packaging.
Return procedure for TC7WPB9306FK,LF(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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