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Toshiba Semiconductor and Storage TC7S66F,LF
- Part No.:
- TC7S66F,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TC7S66F,LF.pdf
- Description:
- IC BILATERAL SWITCH 1 X 1:1 SMV
- Quantity:
- Payment:
- Shipping:
Inventory:48,105
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Product details
Overview
TC7S66F,LF from Toshiba is a high-speed CMOS bilateral analog/digital switch in SSOP-5 package, featuring 7 ns typical propagation delay at 5 V, 100 Ω typical ON resistance at 9 V, and ±12.5 mA I/O current capability. It operates from 2 V to 12 V supply, supports bidirectional signal routing, and is used in audio routing, sensor multiplexing, and data acquisition front-ends.
For engineers reviewing the TC7S66F,LF datasheet, TC7S66F,LF pinout, TC7S66F,LF application, or TC7S66F,LF equivalent, key selection criteria include its low THD (0.05% typ. at 4.5 V), high noise immunity (28% VCC min), feedthrough capacitance (0.5 pF), and compatibility with 5-V and 3.3-V logic control interfaces.
Technical Context
The TC7S66F,LF implements a single-pole single-throw (SPST) bilateral switch using silicon-gate C2MOS technology, enabling symmetrical conduction between I/O terminals regardless of signal polarity. Its control input directly gates the transmission path without internal level shifting or buffering.
It delivers rail-to-rail analog switching capability across its full 2–12 V operating range, with guaranteed performance down to −40°C and up to +85°C. The device integrates ESD protection diodes on all pins and maintains sub-1 μA quiescent current at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 12 V - supports direct interface with 3.3 V, 5 V, and 9 V systems without level translation |
| Propagation Delay | 7 ns (typ.) at VCC = 5 V - enables reliable switching of digital signals up to ~30 MHz |
| ON Resistance | 100 Ω (typ.) at VCC = 9 V - ensures minimal insertion loss for audio and sensor signals below 100 kHz |
| Total Harmonic Distortion | 0.05% (typ.) at VCC = 4.5 V - preserves fidelity in analog audio routing applications |
| Feedthrough Capacitance | 0.5 pF - limits crosstalk and unintended coupling in high-frequency multiplexed signal paths |
| Control Input Capacitance | 5 pF (typ.) - reduces loading on driving logic and simplifies high-speed control timing |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded instrumentation and test equipment |
Pinout & Package
TC7S66F,LF is housed in a 5-pin SSOP (Shrink Small Outline Package) with 0.95 mm lead pitch, measuring 2.9 × 2.8 × 1.25 mm (L × W × H). The package is RoHS-compliant and rated for reflow soldering up to 260°C (10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN/OUT | Bidirectional analog/digital signal terminal - connects to source or load depending on system topology |
| 2 | OUT/IN | Bidirectional analog/digital signal terminal - electrically identical to Pin 1; forms switch channel with Pin 1 |
| 3 | GND | Ground reference for internal circuitry and ESD protection network - must be connected to system ground plane |
| 4 | CONT | Active-high digital control input - drives switch ON when ≥ VIHC (e.g., ≥3.15 V at VCC = 4.5 V) |
| 5 | VCC | Positive supply rail - powers internal logic and switch driver; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports VI/O from 0 V to VCC - eliminates clipping when routing unbuffered sensor or audio signals |
| Low THD and feedthrough | 0.05% THD and 0.5 pF feedthrough - critical for high-fidelity audio and precision measurement paths |
| High noise immunity | VIH/VIL thresholds defined as 28% VCC - rejects transient noise on control line in noisy industrial environments |
| Ultra-low quiescent current | 1 μA max ICC at 25°C - enables use in battery-powered data loggers and portable instrumentation |
| ESD-protected I/O and control pins | ±20 mA diode-rated current handling - withstands human-body-model (HBM) ESD events per JEDEC JS-001 |
Applications
| Audio Signal Routing | Sensor Multiplexing |
|---|---|
Use Scenario: Selecting between multiple microphone inputs in a voice-controlled IoT hub before ADC sampling. IC Role / Device Role / Timing Role: Bidirectional analog switch controlling signal path integrity and isolation between sources. Use Value: 0.05% THD and 100 Ω RON preserve SNR and minimize gain error across 20 Hz–20 kHz bandwidth. |
Use Scenario: Scanning four temperature sensors into a single ADC channel in an industrial PLC module. IC Role / Device Role / Timing Role: Low-leakage SPST switch enabling sequential analog front-end connection without cross-talk. Use Value: IOFF ≤ ±100 nA (typ.) prevents sensor bias current corruption and measurement drift during off-state. |
| Data Acquisition Channel Selection | Logic-Level Translation Interface |
Use Scenario: Isolating legacy 5 V DAC output from a 3.3 V microcontroller I/O port during firmware update sequences. IC Role / Device Role / Timing Role: Digital signal gate preventing back-drive and voltage conflict during power sequencing. Use Value: 7 ns tpd and 1 kΩ RL-compatible timing ensure clean handshaking without metastability in synchronous control. |
Use Scenario: Enabling/disabling communication between two UART peripherals operating at different supply voltages (3.3 V and 5 V). IC Role / Device Role / Timing Role: Level-agnostic bidirectional pass gate supporting open-drain or push-pull signaling. Use Value: Symmetrical RON and VI/O = 0 to VCC allow safe bidirectional logic-level translation without external resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bilateral switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TS5A23157DBVR | Lower RON (0.9 Ω typ. at 4.5 V), higher ICC (10 μA max), 1.65–5.5 V operation only | Optimized for low-voltage portable audio; not rated for 9–12 V analog rails | Prefer TS5A23157DBVR for battery-powered 3.3 V systems requiring ultra-low RON |
| ON Semiconductor NLAS3158USDT1G | Higher THD (0.1% typ.), wider temp range (−55°C to +125°C), same SSOP-5 footprint | Qualified for extended-temperature automotive sensing; less suitable for high-fidelity audio | Prefer NLAS3158USDT1G where extended temperature operation outweighs THD requirements |
Compared with TC7S66F,LF, TS5A23157DBVR offers superior ON resistance but sacrifices high-voltage analog capability, while NLAS3158USDT1G extends thermal robustness at the cost of analog linearity-making TC7S66F,LF the balanced choice for industrial 5–9 V mixed-signal routing.
Availability
TC7S66F,LF is available at Aetrix Electronics and suitable for audio routing, sensor multiplexing, and data acquisition applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TC7S66F,LF 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 discrete semiconductors, logic ICs, and analog switches for industrial, consumer, and automotive applications.
The TC7S66F,LF belongs to Toshiba's TC7S series of high-speed bilateral switches, engineered for low-power, low-distortion analog and digital signal routing in space-constrained embedded systems.
FAQ
What is the maximum operating voltage for TC7S66F,LF?
The TC7S66F,LF supports a DC supply voltage range of −0.5 V to +13 V, with recommended continuous operation from 2 V to 12 V. Absolute maximum ratings specify VCC up to 13 V, but sustained operation above 12 V may compromise reliability and is not characterized in the datasheet. For stable long-term use, keep VCC within 2–12 V as specified in the Operating Ranges table.
Does TC7S66F,LF support bidirectional analog signal switching?
Yes, TC7S66F,LF is a true bilateral switch: Pins 1 (IN/OUT) and 2 (OUT/IN) are functionally identical and support symmetrical analog conduction in either direction. Its C2MOS architecture ensures matched RON and low THD regardless of signal flow direction, making it suitable for AC-coupled audio, differential sensor outputs, and bidirectional data lines.
What is the typical ON resistance of TC7S66F,LF and how does it vary with supply voltage?
The typical ON resistance of TC7S66F,LF is 100 Ω at VCC = 9 V and 170 Ω at VCC = 4.5 V. RON decreases as VCC increases due to enhanced channel conductivity in the MOSFET structure. At VCC = 2.0 V, RON rises to approximately 320 Ω. This voltage-dependent behavior must be accounted for in precision gain or attenuation calculations.
Can TC7S66F,LF be used with 3.3 V logic control signals?
Yes, TC7S66F,LF accepts 3.3 V control inputs when VCC ≥ 4.5 V: VIHC is guaranteed ≥3.15 V (min) at VCC = 4.5 V, ensuring reliable turn-on. However, if VCC = 3.3 V, VIHC drops to ~2.3 V (28% of 3.3 V), so a 3.3 V logic high will still meet threshold. Always verify actual VIHC/VILC values from the Electrical Characteristics table for your specific VCC.
Is TC7S66F,LF pin-compatible with TC4S66F?
Yes, TC7S66F,LF is pin and function compatible with TC4S66F per Toshiba's official documentation. Both share identical 5-pin SSOP-5 pinout, electrical behavior, and truth table. However, TC4S66F is a dual-channel variant (two independent switches), whereas TC7S66F,LF contains only one switch - meaning board layout reuse is possible only when adapting single-channel designs or using half of a TC4S66F footprint.
TC7S66F,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7S
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bilateral, FET Switches
- Circuit:
- 1 x 1:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2V ~ 12V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMV
TC7S66F,LF FAQ
1.How can I place an order for TC7S66F,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7S66F,LF 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 TC7S66F,LF reliable?
The price and inventory of TC7S66F,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7S66F,LF is usually 5 days.
3.What payment methods are accepted for TC7S66F,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7S66F,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7S66F,LF?
TC7S66F,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7S66F,LF 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 TC7S66F,LF?
For technical support, including TC7S66F,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7S66F,LF requirements.
6.How does Aetrix verify that TC7S66F,LF is sourced from the original manufacturer or authorized distributors?
All TC7S66F,LF 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 TC7S66F,LF meets industry standards.
7.What is the process for return or replacement of TC7S66F,LF?
All TC7S66F,LF units undergo pre-shipment inspection (PSI). If there is an issue with TC7S66F,LF, 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 TC7S66F,LF part is unused and in its original packaging.
Return procedure for TC7S66F,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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