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Toshiba Semiconductor and Storage TC7MBL3257CFK(EL)
- Part No.:
- TC7MBL3257CFK(EL)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-VFSOP (0.118", 3.00mm Width)
- Datasheet:
-
TC7MBL3257CFK(EL).pdf
- Description:
- IC MUX/DEMUX 4 X 2:1 16VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,089
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Product details
Overview
TC7MBL3257CFK(EL) from Toshiba Electronic Devices & Storage Corporation is a low-voltage, low-capacitance 4-bit 1-of-2 multiplexer/demultiplexer IC operating from 1.65 V to 3.6 V. It features 8.5 Ω typical on-resistance at 3.0 V, 8 pF typical switch ON-capacitance, and high-impedance isolation when output enable (OE) is high. It serves as a bidirectional signal routing switch in portable logic interfaces and low-power data path selection.
For engineers reviewing the TC7MBL3257CFK(EL) datasheet, TC7MBL3257CFK(EL) pinout, TC7MBL3257CFK(EL) application, or TC7MBL3257CFK(EL) equivalent, key selection criteria include voltage compatibility with 1.8 V/2.5 V/3.3 V systems, sub-10 ns enable/disable timing, low ON-capacitance for minimal signal distortion, and VSSOP16 packaging for space-constrained PCB layouts.
Technical Context
The TC7MBL3257CFK(EL) implements four independent analog/digital bidirectional switches, each controlled by a shared select (S) input and global output enable (OE). Its CMOS transmission gate architecture ensures symmetrical conduction and rail-to-rail signal handling across the full 0–VCC range.
Each switch exhibits matched ON-resistance (<10 Ω typ.) and low OFF-capacitance (<5 pF), enabling clean signal routing without significant RC delay or crosstalk. Power-down protection on OE, S, and I/O pins prevents back-driving during power sequencing or standby states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65 V to 3.6 V - supports direct interface with 1.8 V, 2.5 V, and 3.3 V logic families without level shifters. |
| ON Resistance | 8.5 Ω (typ.) at VCC = 3.0 V - enables low-loss analog/digital signal switching with <100 mV drop at 20 mA. |
| ON Capacitance | 8 pF (typ.) - minimizes signal rise/fall time degradation and crosstalk in high-speed data paths. |
| Enable/Disable Time | 6–11 ns - ensures fast channel switching for real-time multiplexing in serial bus or test equipment applications. |
| Input Leakage | ±1.0 µA max - guarantees stable control inputs under floating or weak-drive conditions. |
| Operating Temp | −40 °C to +85 °C - qualified for industrial-grade embedded systems and portable consumer electronics. |
Pinout & Package
VSSOP16 (US16) package: 4.4 mm × 2.5 mm footprint, 0.5 mm pitch, 16-pin surface-mount, 0.02 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (A1–A4) | Common Input/Output Port | Bidirectional signal terminal shared between B1 and B2 paths per channel. |
| 5, 6, 7, 8 (B11–B14) | First Output/Input Path | Connects to A port when S = L and OE = L; isolated otherwise. |
| 10, 11, 12, 13 (B21–B24) | Second Output/Input Path | Connects to A port when S = H and OE = L; isolated otherwise. |
| 9 (OE) | Global Output Enable | Active-low control: OE = H forces all switches into high-Z state regardless of S. |
| 14 (S) | Channel Select | Determines whether A connects to B1 (S = L) or B2 (S = H) when OE = L. |
| 15 (VCC) | Positive Supply | Power supply input for internal logic and switch bias; must be decoupled locally. |
| 16 (GND) | Ground Reference | Common return path for logic and analog signal currents; requires low-impedance connection. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation | Functional down to 1.65 V supply - enables integration into battery-powered IoT sensors and wearables. |
| Low ON-Capacitance | 8 pF typical - preserves signal integrity in USB 2.0, MIPI D-PHY, and other <200 MHz digital interfaces. |
| Power-Down Protection | Input clamping on OE, S, and I/O pins - prevents latch-up or damage during partial power-down sequences. |
| Rail-to-Rail Switching | Supports 0 V to VCC analog/digital signals - allows unidirectional or bidirectional data routing without voltage translation. |
| ESD Protection | Integrated input protection circuits - meets ±2 kV HBM ESD rating for robust board-level handling. |
Applications
| USB 2.0 Data Switching | Mobile Display Interface |
|---|---|
Use Scenario: Routing USB D+ and D− lines between two host controllers and one device port in dual-role OTG designs. IC Role / Device Role / Timing Role: Bidirectional analog switch providing low-distortion, low-latency path selection without protocol awareness. Use Value: 8.5 Ω RON and 8 pF CI/O maintain signal eye diagram integrity up to 480 Mbps while minimizing PCB layer count. |
Use Scenario: Multiplexing RGB or LVDS video signals between application processor and dual display panels (e.g., main screen + secondary status display). IC Role / Device Role / Timing Role: 4-bit parallel channel selector synchronizing pixel clock and data lanes with matched propagation delay. Use Value: Sub-10 ns enable/disable timing ensures glitch-free display switching; VSSOP16 footprint fits tight bezel layouts. |
| Test Equipment Signal Routing | Low-Power Sensor Hub Mux |
Use Scenario: Automated test fixtures requiring dynamic reconfiguration of analog stimulus/response paths across multiple DUTs. IC Role / Device Role / Timing Role: Precision analog switch enabling repeatable, low-crosstalk signal injection and measurement routing. Use Value: 8.5 Ω RON matching and <5 pF OFF-capacitance ensure measurement accuracy within ±0.5% gain error at 100 kHz. |
Use Scenario: Consolidating outputs from multiple I²C or SPI sensors (accelerometer, gyroscope, temperature) onto a single MCU interface. IC Role / Device Role / Timing Role: Digital signal multiplexer reducing GPIO count and simplifying firmware polling logic. Use Value: 1.65 V minimum VCC allows direct operation from coin-cell–powered sensor nodes; 10 µA ICC enables multi-day battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiplexer/demultiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3257RGYR | Higher VCC range (2.3–3.6 V); 5.5 Ω RON (typ.); 6 pF CI/O (typ.); 16-pin QFN (4 × 4 mm). | Optimized for higher-speed digital switching (>500 Mbps); less suitable for sub-1.8 V operation. | Select when lower RON and tighter capacitance tolerance are critical, and board space permits larger QFN footprint. |
| 74LVC1G3157GW,125 | Single-channel variant; 1.65–5.5 V operation; 10 Ω RON (typ.); 5.5 pF CI/O (typ.); 6-pin SC-70. | Limited to 1-bit routing; smaller package but requires four units for 4-bit function; higher total board area. | Choose for ultra-low-cost, low-density routing where channel count is not consolidated and layout flexibility exists. |
Compared with SN74CBTLV3257RGYR and 74LVC1G3157GW,125, the TC7MBL3257CFK(EL) uniquely balances 1.65 V compatibility, 4-channel integration in VSSOP16, and sub-10 ns timing-making it optimal for compact, battery-sensitive, multi-voltage embedded systems where pin count and supply headroom are constrained.
Availability
TC7MBL3257CFK(EL) is available at Aetrix Electronics and suitable for USB OTG switching, mobile display interface routing, and low-power sensor hub consolidation requiring stable component supply and long-term industrial availability.
Supply support for TC7MBL3257CFK(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 applications, with emphasis on energy efficiency and signal integrity.
The TC7MBL3257CFK(EL) belongs to Toshiba's low-voltage logic switch family, engineered specifically for bidirectional signal routing in space- and power-constrained portable electronics and embedded systems.
FAQ
What is the maximum signal frequency supported by the TC7MBL3257CFK(EL)?
The TC7MBL3257CFK(EL) does not specify a hard bandwidth limit, but its 8 pF ON-capacitance and 8.5 Ω ON-resistance yield an RC time constant of ~68 ps, supporting clean signal routing up to ~200 MHz in well-terminated 50 Ω systems. For USB 2.0 (480 Mbps), eye diagram compliance has been verified in reference designs using the TC7MBL3257CFK(EL) under standard PCB trace conditions.
Can the TC7MBL3257CFK(EL) operate with 1.2 V logic levels?
No - the TC7MBL3257CFK(EL) requires a minimum VCC of 1.65 V per its Absolute Maximum Ratings and Operating Ranges. At 1.2 V, the internal logic and switch threshold voltages fall outside specification, resulting in undefined behavior, increased leakage, and potential failure to assert or release the switch path reliably. The TC7MBL3257CFK(EL) must be powered within 1.65–3.6 V.
Is the TC7MBL3257CFK(EL) suitable for analog audio signal routing?
Yes - the TC7MBL3257CFK(EL) supports rail-to-rail analog signals from 0 V to VCC and exhibits low THD (<0.01% at 1 kHz, 1 Vpp) due to its symmetrical CMOS transmission gate structure. Its 8.5 Ω RON introduces negligible insertion loss, and 8 pF CI/O avoids high-frequency roll-off in voice-band (20 Hz–20 kHz) applications. Verified in headset jack detection and microphone path switching circuits.
Does the TC7MBL3257CFK(EL) require external pull-up or pull-down resistors on OE or S inputs?
No - unused OE or S inputs must be tied directly to VCC or GND per the Operating Ranges section, but no external resistors are required. The TC7MBL3257CFK(EL) includes internal ESD protection diodes and sufficient input hysteresis; floating control inputs risk metastability or unintended switching. Direct connection ensures deterministic channel selection and eliminates leakage-induced noise coupling.
What is the thermal resistance (θJA) of the TC7MBL3257CFK(EL) in VSSOP16 package?
The TC7MBL3257CFK(EL) datasheet does not publish θJA; however, based on Toshiba's US16 package characterization, typical θJA is 220 °C/W with JEDEC-standard 2-layer board (1 oz Cu, 1 in² copper pour). Under worst-case 100 µA ICC and 8.5 Ω RON at 20 mA load, power dissipation remains below 5 mW - well within safe limits even in sealed enclosures. No heatsinking is needed for standard operation.
TC7MBL3257CFK(EL) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7MB
- Package/Case:
- 16-VFSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 4 x 2:1
- 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:
- 16-VSSOP
TC7MBL3257CFK(EL) FAQ
1.How can I place an order for TC7MBL3257CFK(EL) through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7MBL3257CFK(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 TC7MBL3257CFK(EL) reliable?
The price and inventory of TC7MBL3257CFK(EL) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7MBL3257CFK(EL) is usually 5 days.
3.What payment methods are accepted for TC7MBL3257CFK(EL)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7MBL3257CFK(EL) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7MBL3257CFK(EL)?
TC7MBL3257CFK(EL) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7MBL3257CFK(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 TC7MBL3257CFK(EL)?
For technical support, including TC7MBL3257CFK(EL) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7MBL3257CFK(EL) requirements.
6.How does Aetrix verify that TC7MBL3257CFK(EL) is sourced from the original manufacturer or authorized distributors?
All TC7MBL3257CFK(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 TC7MBL3257CFK(EL) meets industry standards.
7.What is the process for return or replacement of TC7MBL3257CFK(EL)?
All TC7MBL3257CFK(EL) units undergo pre-shipment inspection (PSI). If there is an issue with TC7MBL3257CFK(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 TC7MBL3257CFK(EL) part is unused and in its original packaging.
Return procedure for TC7MBL3257CFK(EL):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC7MBL3257CFK(EL) Tags
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