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Toshiba Semiconductor and Storage TC7MBL3245CFK(EL)
- Part No.:
- TC7MBL3245CFK(EL)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 20-VFSOP (0.118", 3.00mm Width)
- Datasheet:
-
TC7MBL3245CFK(EL).pdf
- Description:
- IC BUS SWITCH 8 X 1:1 20VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,452
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Product details
Overview
TC7MBL3245CFK(EL) from Toshiba Electronic Devices & Storage Corporation is a low-voltage, low-capacitance octal bus switch IC used for high-speed signal routing in 1.65–3.6 V digital systems. It features 8 bidirectional channels, 6.5 Ω typical on-resistance at 3.0 V, 7.5 pF typical ON-capacitance, and operates across –40 to +85 °C ambient temperature - deployed in portable computing I/O multiplexing.
For engineers reviewing the TC7MBL3245CFK(EL) datasheet, TC7MBL3245CFK(EL) pinout, TC7MBL3245CFK(EL) application, or TC7MBL3245CFK(EL) equivalent, key selection criteria include voltage compatibility with 1.8 V/2.5 V/3.3 V logic families, propagation delay minimization via low RON/CI/O, OE-controlled high-impedance isolation, and VSSOP20 footprint constraints.
Technical Context
The TC7MBL3245CFK(EL) implements an 8-bit, bidirectional analog/digital bus switch topology with independent channel control via a single active-high output enable (OE). Its CMOS transmission gate architecture ensures rail-to-rail signal pass-through without level shifting.
All 16 I/O pins (A0–A7, B0–B7) support ±1.0 µA input leakage and feature integrated ESD protection. Power-down protection isolates inputs when OE is low or VCC is unpowered, preventing back-driving of upstream logic during sleep states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - supports interoperability across 1.8 V, 2.5 V, and 3.3 V logic domains without level translators. |
| RON (typ.) | 6.5 Ω at VCC = 3.0 V, VIS = 0 V - enables sub-nanosecond propagation delay in low-load configurations. |
| CI/O (ON) | 7.5 pF at VCC = 3.0 V - limits signal distortion and crosstalk in high-frequency data paths up to ~300 MHz. |
| tPZL/tPZH | 6 ns max at VCC = 3.3 V - defines minimum time from OE assertion to valid output drive capability. |
| Operating Temp | –40 °C to +85 °C - qualified for industrial-grade embedded host interfaces and peripheral expansion. |
| Package | VSSOP20 (US20), 0.5 mm pitch, 4.4 × 2.9 × 0.9 mm - surface-mount compatible with fine-pitch PCB layouts. |
Pinout & Package
VSSOP20 (US20) package: 20-pin, ultra-thin shrink small-outline package with exposed thermal pad (not electrically connected), 0.5 mm lead pitch, 4.4 mm × 2.9 mm body size, 0.9 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable | Active-high control: drives all 8 channels ON when high; places A/B ports in high-Z when low. |
| 2–9 (A0–A7) | Port A I/O | Bidirectional switch terminals - connect to source-side logic (e.g., SoC I/O banks). |
| 11–18 (B0–B7) | Port B I/O | Bidirectional switch terminals - connect to destination-side peripherals (e.g., memory, sensors). |
| 10 (GND) | Ground | Reference return path for all internal circuitry and I/O signals. |
| 20 (VCC) | Supply Voltage | Single power rail for logic and switch operation; decoupling required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance | 6.5 Ω typ. at 3.0 V - preserves signal integrity and reduces insertion loss in high-speed data lines. |
| Low ON-capacitance | 7.5 pF typ. - minimizes loading on driving sources and maintains fast edge rates. |
| Power-down protection | Prevents back-current flow into unpowered A/B ports when OE is inactive or VCC is off. |
| ESD protection | Integrated clamping on all I/O pins - rated per JESD22-A114 (±2 kV HBM). |
Applications
| Mobile Device I/O Multiplexing | USB 2.0 Data Line Switching |
|---|---|
|
Use Scenario: Sharing limited SoC GPIOs between multiple peripherals (e.g., camera sensor and display interface) in smartphones. IC Role / Device Role / Timing Role: Bidirectional signal path selector enabling dynamic reconfiguration without protocol translation. Use Value: Eliminates need for discrete logic or FPGA-based muxing; 6.5 Ω RON avoids timing skew across 8-bit parallel buses. |
Use Scenario: Isolating USB 2.0 D+/D− lines during device enumeration or port switching in docking stations. IC Role / Device Role / Timing Role: Low-capacitance analog switch ensuring <5 ns propagation delay and minimal signal degradation. Use Value: 7.5 pF CI/O and 6 ns tPZL meet USB 2.0 full-speed eye diagram requirements without retiming. |
| Low-Power Sensor Hub Interface | Embedded Display Data Channel Selection |
|
Use Scenario: Routing I²C/SPI signals from MCU to multiple environmental sensors in wearables with duty-cycled power domains. IC Role / Device Role / Timing Role: Signal gate activated only during sensor read cycles; OE synchronized with MCU wake-up events. Use Value: Power-down protection prevents current leakage from powered sensors into unpowered MCU I/O during sleep. |
Use Scenario: Selecting between two LVDS or MIPI DSI display panels in industrial HMIs using shared controller outputs. IC Role / Device Role / Timing Role: High-bandwidth analog switch supporting pixel clock frequencies up to 150 MHz. Use Value: 1.65–3.6 V VCC range matches display driver supply rails; VSSOP20 footprint fits tight board space near connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT3245APW | Higher RON (7 Ω min), wider VCC (4.5–5.5 V), no power-down protection | Requires 5 V supply; unsuitable for 1.8 V systems or battery-powered sleep modes | Select only if legacy 5 V infrastructure exists and low-leakage isolation is not required. |
| 74LVC245ABQ | Octal transceiver (direction-controlled), not a switch; higher CI/O (>15 pF), no OE-driven high-Z state | Needs external direction control logic; adds propagation delay and layout complexity | Prefer only when bidirectional data flow with direction arbitration is mandatory over simple pass-through. |
Compared with SN74CBT3245APW and 74LVC245ABQ, the TC7MBL3245CFK(EL) delivers lower on-resistance and capacitance in 1.65–3.6 V operation, plus built-in power-down protection - making it optimal for energy-constrained, multi-rail I/O routing where signal fidelity and leakage control are critical.
Availability
TC7MBL3245CFK(EL) is available at Aetrix Electronics and suitable for mobile device I/O multiplexing, USB 2.0 line switching, and low-power sensor hub interface applications requiring stable component supply and long-term industrial availability.
Supply support for TC7MBL3245CFK(EL) 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 and manufactures high-reliability semiconductor components for industrial, automotive, and consumer electronics markets, with emphasis on power efficiency and signal integrity.
The TC7MBL3245CFK(EL) belongs to Toshiba's low-voltage bus switch product line, engineered specifically for minimizing signal degradation and power leakage in portable and battery-operated digital systems.
FAQ
What is the maximum operating frequency supported by the TC7MBL3245CFK(EL)?
The TC7MBL3245CFK(EL) does not specify a hard maximum frequency but supports signal integrity up to ~300 MHz in typical PCB environments due to its 7.5 pF ON-capacitance and 6.5 Ω RON. Measured AC parameters like tPZL = 6 ns at 3.3 V confirm suitability for USB 2.0 full-speed (480 Mbps) and parallel I/O buses with ≤15 pF load capacitance. System-level bandwidth depends on trace impedance and termination.
Does the TC7MBL3245CFK(EL) require external pull-up or pull-down resistors on the OE pin?
Yes - the OE pin has no internal pull-up or pull-down. Per Toshiba's Operating Ranges specification, unused control inputs must be tied to either VCC or GND. For reliable operation, OE should be actively driven or externally pulled to VCC (to enable) or GND (to disable); floating OE may cause undefined channel states and increased ICC.
Can the TC7MBL3245CFK(EL) operate with mixed-voltage signaling (e.g., 1.8 V A-side and 3.3 V B-side)?
No - the TC7MBL3245CFK(EL) is a passive analog switch with a single VCC rail. Both A and B ports must remain within 0 to VCC (per Operating Ranges: VS = 0 to VCC). Applying 3.3 V to one side while VCC = 1.8 V violates absolute maximum ratings and risks latch-up or damage. Level translation requires separate buffers.
What is the thermal performance of the TC7MBL3245CFK(EL) in VSSOP20 package?
The TC7MBL3245CFK(EL) in VSSOP20 (US20) package has a typical thermal resistance θJA of ~220 °C/W (unmounted, JEDEC standard). With 180 mW max power dissipation and 10 µA quiescent current, self-heating remains negligible under normal operation. No thermal pad connection is required, but PCB copper pour under the package improves heat spreading in sustained high-current use.
Is the TC7MBL3245CFK(EL) RoHS compliant and halogen-free?
Yes - the TC7MBL3245CFK(EL) meets EU RoHS Directive 2011/65/EU and is halogen-free per Toshiba's environmental compliance documentation. The "(EL)" suffix denotes lead-free, RoHS-compliant packaging. Full material declarations and test reports are available through Toshiba's official portal or authorized distributors.
TC7MBL3245CFK(EL) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7MB
- Package/Case:
- 20-VFSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 8 x 1:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-VSSOP
TC7MBL3245CFK(EL) FAQ
1.How can I place an order for TC7MBL3245CFK(EL) through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7MBL3245CFK(EL) 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 TC7MBL3245CFK(EL) reliable?
The price and inventory of TC7MBL3245CFK(EL) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7MBL3245CFK(EL) is usually 5 days.
3.What payment methods are accepted for TC7MBL3245CFK(EL)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7MBL3245CFK(EL) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7MBL3245CFK(EL)?
TC7MBL3245CFK(EL) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7MBL3245CFK(EL) 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 TC7MBL3245CFK(EL)?
For technical support, including TC7MBL3245CFK(EL) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7MBL3245CFK(EL) requirements.
6.How does Aetrix verify that TC7MBL3245CFK(EL) is sourced from the original manufacturer or authorized distributors?
All TC7MBL3245CFK(EL) 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 TC7MBL3245CFK(EL) meets industry standards.
7.What is the process for return or replacement of TC7MBL3245CFK(EL)?
All TC7MBL3245CFK(EL) units undergo pre-shipment inspection (PSI). If there is an issue with TC7MBL3245CFK(EL), 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 TC7MBL3245CFK(EL) part is unused and in its original packaging.
Return procedure for TC7MBL3245CFK(EL):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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