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Texas Instruments SN74LVC2G66YZPR
- Part No.:
- SN74LVC2G66YZPR
- Manufacturer:
- Texas Instruments
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
SN74LVC2G66YZPR.pdf
- Description:
- IC SWITCH SPST-NOX2 10OHM 8DSBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC2G66YZPR from Texas Instruments is a dual SPST bilateral analog switch in an 8-pin DSBGA package, operating from 1.65 V to 5.5 V, supporting rail-to-rail analog signal switching up to ±5.5 V peak, with typical on-resistance of 6 Ω at 4.5 V and propagation delay of 0.8 ns at 3.3 V - used for audio/video routing and signal multiplexing in portable wearables and wireless devices.
For engineers reviewing the SN74LVC2G66YZPR datasheet, SN74LVC2G66YZPR pinout, SN74LVC2G66YZPR application, or SN74LVC2G66YZPR equivalent, key selection criteria include its dual independent control (1C/2C), overvoltage-tolerant I/O (to 5.5 V without VCC), low crosstalk (–58 dB), high-frequency response (>300 MHz at 5 pF load), and NanoFree™ DSBGA footprint for space-constrained PCBs.
Technical Context
This device implements two independent, bidirectional analog switches using LVC-family CMOS technology, each controlled by a dedicated digital input (1C and 2C) with positive logic (H = ON, L = OFF). It supports true bilateral signal flow - signals propagate equally well from A to B or B to A - and maintains linearity across its full 0–VCC input range.
Its architecture enables operation without VCC powered (I/O tolerant to 5.5 V), leverages low-capacitance design (Cio(on) = 14 pF, Cic = 3.5 pF), and achieves high-speed switching via sub-1 ns tpd and fast enable/disable times (ten/tdis ≤ 4.4 ns at 3.3 V), making it suitable for dynamic signal gating in mixed-signal data acquisition paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports single-supply operation across 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains. |
| ron (Typ) | 6 Ω at VCC = 4.5 V - ensures minimal signal attenuation and distortion in analog path conditioning. |
| tpd (Max) | 0.8 ns at VCC = 3.3 V - enables high-speed digital signal routing without timing skew in clock/data paths. |
| Crosstalk | –58 dB at 1 MHz (600 Ω/50 pF) - prevents interference between the two independent switch channels. |
| Signal Range | –0.5 V to VCC + 0.5 V - allows rail-to-rail analog signal handling, including overvoltage tolerance up to 5.5 V. |
| ESD Rating | ±2000 V HBM - meets industrial-level ESD robustness for handheld and portable end equipment. |
| Operating Temp | –40 °C to +85 °C - qualified for extended temperature operation in consumer and industrial environments. |
Pinout & Package
SN74LVC2G66YZPR uses an 8-pin DSBGA (Die Size Ball Grid Array) package measuring 1.91 mm × 0.91 mm with bottom-side ball layout. This NanoFree™ package eliminates traditional leadframe and mold compound, using the silicon die itself as the mechanical structure - ideal for ultra-thin, high-density portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Bidirectional analog/digital signal terminal (Switch 1) | Connects to first signal path; transmits bidirectionally when 1C = HIGH. |
| 1B | Bidirectional analog/digital signal terminal (Switch 1) | Paired with 1A; completes first SPST switch path. |
| 1C | Digital control input (Switch 1 enable) | Positive logic: HIGH enables 1A↔1B conduction; LOW isolates. |
| 2A | Bidirectional analog/digital signal terminal (Switch 2) | Connects to second independent signal path. |
| 2B | Bidirectional analog/digital signal terminal (Switch 2) | Paired with 2A; completes second SPST switch path. |
| 2C | Digital control input (Switch 2 enable) | Independent of 1C; enables 2A↔2B conduction when HIGH. |
| GND | Ground reference | Common return for power and signal integrity; must be low-impedance. |
| VCC | Power supply | Supplies internal logic and switch bias; also defines analog signal swing ceiling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Supports analog signals from GND to VCC (and up to 5.5 V regardless of VCC), enabling direct interface with legacy or mixed-voltage systems. |
| Overvoltage-tolerant inputs | I/O pins accept up to 5.5 V even with VCC unpowered - simplifies power sequencing and hot-swap compatibility. |
| Low on-resistance matching | Δron ≤ 2 Ω at 4.5 V - ensures consistent gain and phase response across both switches in differential or dual-path applications. |
| High linearity & low distortion | 0.01% THD at 4.5 V, 10 kHz - preserves fidelity in audio and precision sensor signal chains. |
| NanoFree™ DSBGA packaging | 1.91 mm × 0.91 mm footprint with 0.4 mm pitch - reduces board area by >70% vs. SSOP/VSSOP, critical for wearables and hearing aids. |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
|
Use Scenario: Switching microphone inputs between multiple codecs or ADCs in a multi-sensor wearable. IC Role / Device Role / Timing Role: Dual SPST analog switch providing isolated, low-distortion signal paths under microcontroller GPIO control. Use Value: Enables flexible input configuration without mechanical relays or larger analog mux ICs - saves PCB area and power. |
Use Scenario: Multiplexing sensor outputs (e.g., temperature, accelerometer, ambient light) into a shared ADC channel. IC Role / Device Role / Timing Role: Bidirectional analog switch with independent enables, allowing time-division sampling of multiple analog sources. Use Value: Eliminates need for higher-channel-count muxes; maintains signal integrity with <6 Ω Ron and –58 dB crosstalk. |
| Wireless Modem Signal Gating | USB-C Audio Adapter Switching |
|
Use Scenario: Enabling/disabling RF front-end signal paths during modem sleep/wake transitions to reduce leakage and noise. IC Role / Device Role / Timing Role: Fast-switching analog gate (tdis ≤ 4.4 ns) controlled by baseband processor to isolate sensitive RF sections. Use Value: Prevents signal bleed and intermodulation during idle states while maintaining sub-ns timing alignment. |
Use Scenario: Routing analog audio (3.5 mm TRRS) and USB 2.0 data lines through a compact USB-C dongle with shared connector pins. IC Role / Device Role / Timing Role: Dual independent switch managing separate analog and digital signal lanes under system firmware control. Use Value: Supports concurrent analog audio playback and USB data transfer using single-port USB-C, leveraging rail-to-rail voltage handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS5A23157DCUR | Higher Ron (10 Ω typ at 4.5 V), smaller VCC range (1.65–5.5 V same), but lower Cio(on) (9 pF vs. 14 pF). | Better for high-frequency RF switching where capacitance dominates; less optimal for low-distortion audio due to higher Ron. | Prefer TS5A23157DCUR when minimizing capacitive loading is critical and Ron tolerance >10 Ω is acceptable. |
| ADG721BRMZ-REEL | Wider VCC range (1.8–5.5 V), higher Ron (4.5 Ω min at 5 V), but specified for –40°C to +125°C industrial temp range. | Suitable for automotive or industrial environments requiring extended temperature operation; not NanoFree™ packaged. | Choose ADG721BRMZ-REEL for extended temperature reliability where DSBGA size is secondary to thermal margin. |
Compared with SN74LVC2G66YZPR, TS5A23157DCUR trades lower capacitance for higher resistance and reduced linearity, while ADG721BRMZ-REEL offers broader temperature qualification at the cost of larger MSOP-8 packaging and no overvoltage-tolerant I/O.
Availability
SN74LVC2G66YZPR is available at Aetrix Electronics and suitable for portable computing, wearable devices, and wireless communication modules requiring stable component supply, ultra-small footprint, and robust analog switching performance.
Supply support for SN74LVC2G66YZPR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision analog switching and low-power logic solutions.
The SN74LVC2G66YZPR belongs to TI's LVC-series analog switches - designed specifically for space-constrained, battery-powered applications demanding low Ron, rail-to-rail operation, and ultra-miniature packaging like NanoFree™ DSBGA.
FAQ
What is the maximum signal voltage the SN74LVC2G66YZPR can handle?
The SN74LVC2G66YZPR supports analog signal voltages from –0.5 V to VCC + 0.5 V, with absolute maximum tolerance up to 5.5 V peak regardless of VCC level. This overvoltage capability allows safe interfacing with legacy 5 V systems even when operating from 1.8 V or 3.3 V supplies - a key advantage confirmed in TI's SCES325N datasheet Section 6.1.
Does the SN74LVC2G66YZPR require VCC to be powered for I/O pins to tolerate 5.5 V?
No - the SN74LVC2G66YZPR features overvoltage-tolerant I/O architecture that permits inputs and outputs to safely accept voltages up to 5.5 V even when VCC is unpowered or at 0 V. This behavior is explicitly documented in Section 8.3 and Table 6.3 of the official datasheet, enabling flexible power sequencing in complex systems.
What is the thermal resistance (RθJA) of the SN74LVC2G66YZPR in its DSBGA package?
The SN74LVC2G66YZPR has a junction-to-ambient thermal resistance (RθJA) of 102 °C/W in its YZP (DSBGA) package, per Section 6.4 of the datasheet. This value reflects superior thermal performance compared to SSOP (186.1 °C/W) and VSSOP (204.4 °C/W) variants - critical for sustained analog switching in thermally constrained wearables.
Can the SN74LVC2G66YZPR be used for audio signal switching without audible distortion?
Yes - the SN74LVC2G66YZPR delivers 0.01% THD at 4.5 V and 10 kHz (Section 6.7), with high linearity and low Ron matching (Δron ≤ 2 Ω). These characteristics ensure transparent audio path switching in headphones, earbuds, and voice interfaces, preserving signal fidelity without added noise or harmonic artifacts.
How does the NanoFree™ DSBGA package of the SN74LVC2G66YZPR impact PCB layout?
The SN74LVC2G66YZPR's 1.91 mm × 0.91 mm DSBGA package uses bottom-side solder balls instead of perimeter leads, eliminating solder wicking concerns and reducing required keep-out area. Layout requires microvia-in-pad or direct ball routing, with strict adherence to TI's recommended 0.4 mm pitch and thermal pad guidelines in Section 11 of the datasheet.
SN74LVC2G66YZPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm (Max)
- Voltage - Supply, Single (V+):
- 1.65V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 3.9ns, 6.3ns
- -3db Bandwidth:
- 300MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- 100nA
- Crosstalk:
- -58dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DSBGA
SN74LVC2G66YZPR FAQ
1.How can I place an order for SN74LVC2G66YZPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G66YZPR 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 SN74LVC2G66YZPR reliable?
The price and inventory of SN74LVC2G66YZPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G66YZPR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G66YZPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G66YZPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G66YZPR?
SN74LVC2G66YZPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G66YZPR 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 SN74LVC2G66YZPR?
For technical support, including SN74LVC2G66YZPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G66YZPR requirements.
6.How does Aetrix verify that SN74LVC2G66YZPR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G66YZPR 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 SN74LVC2G66YZPR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G66YZPR?
All SN74LVC2G66YZPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G66YZPR, 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 SN74LVC2G66YZPR part is unused and in its original packaging.
Return procedure for SN74LVC2G66YZPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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