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Toshiba Semiconductor and Storage TC7SBL66CFU,LF(CT
- Part No.:
- TC7SBL66CFU,LF(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TC7SBL66CFU,LF(CT.pdf
- Description:
- IC SWITCH SPST-NCX1 18OHM 5SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,017
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Product details
Overview
TC7SBL66CFU,LF(CT) from Toshiba Electronic Devices & Storage Corporation is a low-voltage, low-capacitance CMOS single bus switch designed for analog signal routing in space-constrained digital systems. It features 5.5 Ω typical on-resistance at 3.0 V, 7 pF typical on-capacitance, and operates across 1.65–3.6 V supply with -40 to 85 °C industrial temperature range - enabling high-fidelity signal pass-through in USB 2.0 data lines and I²C bus isolation.
For engineers reviewing the TC7SBL66CFU,LF(CT) datasheet, TC7SBL66CFU,LF(CT) pinout, TC7SBL66CFU,LF(CT) application, or TC7SBL66CFU,LF(CT) equivalent, key selection criteria include OE-active-low logic polarity, USV package footprint compatibility, sub-10 ns enable/disable timing, and guaranteed power-down protection for I/O and OE pins under VCC = 0 V conditions.
Technical Context
The TC7SBL66CFU,LF(CT) implements a single-pole single-throw (SPST) analog bus switch with complementary MOSFET topology. Its OE input is active-low: asserting OE = LOW connects A and B terminals; OE = HIGH places both terminals in high-impedance state. Input protection diodes and power-off leakage control ensure robustness during hot-plug and partial-power-down scenarios.
Unlike the TC7SBL384CFU (OE-active-high), this variant's control logic is optimized for direct interface with microcontroller GPIOs configured as open-drain or active-low enables. The device maintains signal integrity via matched RON and CI/O across 1.65–3.6 V, supporting bidirectional analog/digital signals up to 3.6 V peak without level translation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65–3.6 V - supports direct interface with 1.8 V and 3.3 V logic domains without external regulators. |
| On-Resistance (RON) | 5.5 Ω typ. @ 3.0 V - ensures minimal voltage drop (<15 mV at 3 mA) and preserves signal amplitude in sensor or audio paths. |
| On-Capacitance (CI/O) | 7 pF typ. @ 3.0 V - limits bandwidth degradation and crosstalk in high-speed digital buses like USB 2.0 (480 Mbps). |
| Enable Timing (tPZL/tPLZ) | 6 ns max @ 3.3 V - enables cycle-accurate switching in synchronous peripheral multiplexing applications. |
| Operating Temperature | -40 to +85 °C - validated for industrial-grade embedded controllers and automotive infotainment interfaces. |
| Input Leakage Current | ±1.0 µA max @ -40 to +85 °C - prevents unintended biasing of floating I²C pull-ups or ADC reference nodes. |
Pinout & Package
TC7SBL66CFU,LF(CT) is housed in a 5-pin USV (Ultra Small Outline) package (1.6 × 1.6 × 0.55 mm, 0.5 mm pitch), optimized for PCB area-constrained designs such as wearables and IoT edge nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply rail | Must be decoupled within 2 mm of pin; powers internal logic and switch FETs; no internal regulation. |
| GND | Ground reference | Common return for all signals; requires low-inductance connection to minimize ground bounce during switching. |
| A | Switch input/output terminal | Bidirectional analog/digital node; rated for -0.5 to VCC +0.5 V; must not exceed absolute max ratings during hot-swap. |
| B | Switch input/output terminal | Electrically identical to A; forms low-RON, low-CI/O path when OE is asserted. |
| OE | Active-low output enable | Drives switch ON when LOW (0–0.3×VCC); forces A/B into Hi-Z when HIGH (0.7×VCC–VCC); includes ESD protection. |
Key Features
| Feature | Design Value |
|---|---|
| Low On-Capacitance | 7 pF typ. enables <100 MHz analog bandwidth with <0.1 dB insertion loss in 50 Ω systems. |
| Power-Down Protection | Guaranteed I/O and OE pin leakage ≤ ±1.0 µA when VCC = 0 V - prevents back-driving of upstream logic during power sequencing. |
| Wide Supply Range | 1.65–3.6 V operation allows direct integration with battery-powered SoCs (e.g., 2-cell Li-ion or coin-cell systems). |
| ESD Robustness | All pins qualified to ≥2 kV HBM - eliminates need for external TVS diodes in consumer-grade USB or display interface designs. |
Applications
| USB 2.0 Data Line Switching | I²C Bus Isolation |
|---|---|
|
Use Scenario: Dynamically routing USB D+ and D− signals between two host controllers sharing one peripheral port. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling hardware-level USB port arbitration without protocol stack intervention. Use Value: Maintains <480 Mbps signal integrity via 5.5 Ω RON and 7 pF CI/O, eliminating timing skew and reflection-induced jitter. |
Use Scenario: Preventing address conflicts when multiple I²C sensors share a common bus segment connected to isolated MCU domains. IC Role / Device Role / Timing Role: Signal-gating element controlled by MCU GPIO to electrically isolate bus segments during firmware updates. Use Value: Enables zero-current leakage (<1 µA) between powered/unpowered domains, avoiding false ACK/NACK generation. |
| Audio Path Muting | ADC Input Channel Selection |
|
Use Scenario: Software-controlled muting of line-in or microphone inputs in portable audio codecs without mechanical relays. IC Role / Device Role / Timing Role: Low-distortion analog switch inserted in AC-coupled audio signal path with DC-blocking capacitors. Use Value: Delivers THD+N < -90 dB due to matched RON and absence of charge injection - critical for 24-bit audio fidelity. |
Use Scenario: Multiplexing multiple sensor outputs (e.g., thermistor, pressure, humidity) into a single SAR ADC input. IC Role / Device Role / Timing Role: Precision analog switch providing channel-to-channel isolation >60 dB at 10 kHz. Use Value: Minimizes crosstalk-induced measurement error (<0.05% FS) via 7 pF CI/O and 5.5 Ω RON matching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TC7SBL384CFU,LF(CT) | OE input is active-high instead of active-low; otherwise identical RON, CI/O, and package. | Requires inverted GPIO control logic; unsuitable where MCU lacks dedicated active-high enable outputs. | Select TC7SBL384CFU,LF(CT) only if system-level OE signaling is naturally high-asserted or inverters are already present. |
| SN74CBT3244PWR | Higher RON (7 Ω min), wider VCC range (4.5–5.5 V), larger TSSOP-20 package; no power-down protection. | Designed for 5 V legacy systems; incompatible with 1.8 V logic without level shifters. | Choose SN74CBT3244PWR only for 5 V-only environments where board area and power-down safety are secondary concerns. |
Compared with TC7SBL384CFU,LF(CT) and SN74CBT3244PWR, TC7SBL66CFU,LF(CT) uniquely balances ultra-low capacitance, active-low OE compatibility, and guaranteed zero-VCC I/O protection - making it optimal for modern mixed-voltage portable electronics requiring fail-safe hot-swap behavior.
Availability
TC7SBL66CFU,LF(CT) is available at Aetrix Electronics and suitable for USB 2.0 interface routing, I²C bus segmentation, audio signal muting, ADC channel multiplexing, and low-voltage analog switching applications requiring stable component supply and long-term industrial lifecycle support.
Supply support for TC7SBL66CFU,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 industrial, automotive, and consumer electronics, with expertise in analog switches, logic ICs, and power management devices.
The TC7SBL66CFU,LF(CT) belongs to Toshiba's TC7SBL series of low-voltage bus switches, engineered specifically for signal integrity preservation in compact, battery-powered digital systems operating below 3.6 V.
FAQ
What is the logic polarity of the OE pin on TC7SBL66CFU,LF(CT)?
The OE (Output Enable) pin on TC7SBL66CFU,LF(CT) is active-low: the A–B switch path is closed only when OE is driven to a logic LOW (≤0.3×VCC). When OE is HIGH (≥0.7×VCC), both A and B terminals enter high-impedance state. This behavior is confirmed in the truth table and functional description of the TC7SBL66CFU,LF(CT) datasheet Rev. 2.0.A.
Does TC7SBL66CFU,LF(CT) support operation at 1.8 V supply?
Yes, TC7SBL66CFU,LF(CT) is fully specified for operation from 1.65 V to 3.6 V, including 1.8 V nominal systems. At VCC = 1.8 V, RON remains ≤13 Ω (max), tPLZ/tPZL ≤11 ns, and VIH/VIL thresholds scale proportionally - ensuring reliable interface with 1.8 V FPGA I/O banks and ARM Cortex-M0+ peripherals.
Is TC7SBL66CFU,LF(CT) pin-compatible with TC7SBL384CFU,LF(CT)?
Yes, TC7SBL66CFU,LF(CT) and TC7SBL384CFU,LF(CT) share identical USV package dimensions, pinout, and terminal assignments. The sole functional difference is OE logic polarity: TC7SBL66CFU,LF(CT) uses active-low OE, while TC7SBL384CFU,LF(CT) uses active-high OE. No PCB layout change is needed when substituting between them, provided OE drive logic is adjusted.
What is the maximum signal voltage that can be passed through TC7SBL66CFU,LF(CT)?
The TC7SBL66CFU,LF(CT) supports switch I/O voltages from -0.5 V to VCC + 0.5 V under normal operation. For example, at VCC = 3.3 V, the A and B terminals tolerate -0.5 V to +3.8 V. Exceeding these limits risks latch-up or permanent damage, as defined in the Absolute Maximum Ratings section of the TC7SBL66CFU,LF(CT) datasheet.
Does TC7SBL66CFU,LF(CT) include ESD protection on all pins?
Yes, all inputs - including OE, A, and B - incorporate integrated protection circuits against electrostatic discharge, rated to ≥2 kV per Human Body Model (HBM). This eliminates the need for external ESD components in most consumer and industrial applications, as verified in the "Features" and "Absolute Maximum Ratings" sections of the TC7SBL66CFU,LF(CT) datasheet.
TC7SBL66CFU,LF(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 18Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.65V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 6ns, 6ns
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 3.5pF
- Current - Leakage (IS(off)) (Max):
- 1µA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SSOP
TC7SBL66CFU,LF(CT FAQ
1.How can I place an order for TC7SBL66CFU,LF(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7SBL66CFU,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 TC7SBL66CFU,LF(CT reliable?
The price and inventory of TC7SBL66CFU,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 TC7SBL66CFU,LF(CT is usually 5 days.
3.What payment methods are accepted for TC7SBL66CFU,LF(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7SBL66CFU,LF(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7SBL66CFU,LF(CT?
TC7SBL66CFU,LF(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7SBL66CFU,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 TC7SBL66CFU,LF(CT?
For technical support, including TC7SBL66CFU,LF(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7SBL66CFU,LF(CT requirements.
6.How does Aetrix verify that TC7SBL66CFU,LF(CT is sourced from the original manufacturer or authorized distributors?
All TC7SBL66CFU,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 TC7SBL66CFU,LF(CT meets industry standards.
7.What is the process for return or replacement of TC7SBL66CFU,LF(CT?
All TC7SBL66CFU,LF(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7SBL66CFU,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 TC7SBL66CFU,LF(CT part is unused and in its original packaging.
Return procedure for TC7SBL66CFU,LF(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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