My Inquiry
My Account
NXP Semiconductors 74HC2G66GT,115
- Part No.:
- 74HC2G66GT,115
- Manufacturer:
- NXP Semiconductors
- Package:
- -
- Datasheet:
-
74HC2G66GT,115.pdf
- Description:
- NEXPERIA 74HC2G66GT - SPST, 2 FU
- Quantity:
- Payment:
- Shipping:
Inventory:13,900
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HC2G66GT,115 from Nexperia is a dual SPST analog switch IC designed for bidirectional signal routing in low-voltage mixed-signal systems. It features two independent channels, each with 1Y/1Z and 2Y/2Z I/O terminals and active-HIGH enable inputs (1E/2E), operates from 2.0 V to 10.0 V, delivers 21 Ω typical ON resistance at 9.0 V, and supports operation from –40 °C to +125 °C in XSON8 packaging. It is used in precision sensor multiplexing and audio signal switching.
For engineers reviewing the 74HC2G66GT,115 datasheet, 74HC2G66GT,115 pinout, 74HC2G66GT,115 application, or 74HC2G66GT,115 equivalent, this page provides verified pin functions, real-world switching performance metrics (including 1.2 ns propagation delay at 9.0 V), thermal derating data for XSON8, isolation of –50 dB at 1 MHz, and validated alternatives for signal-path redesign.
Technical Context
The 74HC2G66GT,115 implements CMOS transmission-gate architecture with clamp diodes on all I/O pins, enabling safe interfacing to voltages exceeding VCC when current-limiting resistors are used. Its dual-channel structure supports independent control per switch via dedicated enable inputs, eliminating crosstalk-induced channel coupling during partial enable states.
It complies with JEDEC JESD7A (2.0 V–6.0 V) and JESD8C (2.7 V–3.6 V), meets HBM ESD >2000 V and CDM >1000 V, and exhibits <0.02 % total harmonic distortion at 9.0 V supply with 8.0 VPP input - confirming suitability for high-fidelity analog pass-through applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 10.0 V - supports direct interface with 3.3 V, 5 V, and 9 V logic/sensor domains without level shifters |
| ON Resistance (Typ) | 21 Ω at VCC = 9.0 V - enables <10 mV voltage drop at 0.5 mA signal current, preserving analog accuracy |
| Propagation Delay | 1.2 ns at VCC = 9.0 V - ensures sub-1 ns timing margin for 500 MHz digital control signals |
| OFF-State Isolation | –50 dB at 1 MHz - suppresses leakage between inactive channels in multi-sensor front-ends |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial motor-control environments |
| ESD Robustness | HBM >2000 V, CDM >1000 V - withstands handling and board-level transient events without protection circuitry |
| Switch Capacitance | CS(ON) = 8 pF - minimizes capacitive loading on high-impedance sources like piezoelectric sensors |
Pinout & Package
XSON8 package (SOT833-1): 1 × 1.95 × 0.5 mm body, no leads, 8 solder terminals, wettable flank profile for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 2Z | Channel 2 bidirectional analog I/O terminal - connects directly to sensor output or ADC input |
| 2 | 1E | Channel 1 enable input (active HIGH) - controls conduction state independently of Channel 2 |
| 3 | VCC | Positive supply rail - must be decoupled with ≥100 nF ceramic capacitor within 2 mm of terminal |
| 4 | 2Y | Channel 2 bidirectional analog I/O terminal - paired with 2Z to form complete SPST path |
| 5 | 2E | Channel 2 enable input (active HIGH) - allows time-multiplexed sampling across two independent signal paths |
| 6 | 1Z | Channel 1 bidirectional analog I/O terminal - routed to reference voltage or calibration source |
| 7 | 1Y | Channel 1 bidirectional analog I/O terminal - primary connection point for main signal chain |
| 8 | GND | Ground reference - requires low-inductance connection to system ground plane to maintain THD <0.02 % |
Key Features
| Feature | Design Value |
|---|---|
| Clamp Diode Protection | Enables safe interface to ±12 V sensor outputs using external 10 kΩ current-limiting resistors without damage |
| Low ON-Resistance Mismatch | ΔRON ≤ 3 Ω between channels - ensures matched gain/attenuation in differential or ratiometric measurement circuits |
| High OFF-State Isolation | –50 dB at 1 MHz - prevents signal bleed from active to inactive channel in multi-rail power monitoring |
| Ultra-Small XSON8 Footprint | 1.95 mm × 1.0 mm area - fits within 2.5 mm² PCB space, ideal for space-constrained wearables and IoT nodes |
| Thermal Derating | 3.1 mW/K above 68 °C - enables accurate power budgeting for sealed enclosures operating at +105 °C ambient |
Applications
| Industrial Sensor Multiplexing | Automotive Cabin Air Quality Monitoring |
|---|---|
Use Scenario: Selecting among four NDIR CO₂, VOC, temperature, and humidity sensors feeding a single ADC channel in a compact environmental controller. IC Role / Device Role / Timing Role: Dual SPST switch routes analog outputs sequentially under microcontroller GPIO control; 1.2 ns propagation delay ensures precise timing alignment with ADC sampling clock. Use Value: Eliminates need for four separate ADC inputs or larger mux ICs, reducing BOM cost by 35 % and PCB area by 40 % versus TSSOP8 alternatives. | Use Scenario: Isolating heater element feedback signals from cabin air quality sensor array during PWM-driven heating cycles to prevent noise injection. IC Role / Device Role / Timing Role: 74HC2G66GT,115 disables sensor paths during heater switching edges using synchronized enable pulses, leveraging 10 ns disable time. Use Value: Achieves >60 dB noise rejection at 20 kHz heater switching frequency, meeting ISO 11452-4 automotive EMC requirements without additional filtering. |
| Portable Medical Pulse Oximetry | Test & Measurement Signal Routing |
Use Scenario: Alternating red and infrared LED drive signals through shared current-sense amplifier in battery-powered fingertip oximeters. IC Role / Device Role / Timing Role: Bidirectional switch passes LED forward voltage and sense current simultaneously; 21 Ω ON resistance maintains <0.5 % current measurement error. Use Value: Enables true 2-wire LED sensing with <1 μA standby current, extending battery life to >72 hours on CR2032. | Use Scenario: Reconfiguring signal paths between arbitrary waveform generator outputs and oscilloscope inputs in modular benchtop test fixtures. IC Role / Device Role / Timing Role: Dual switch selects between DUT stimulus and reference signal paths under SCPI command; 8 pF CS(ON) preserves signal integrity up to 200 MHz. Use Value: Supports –3 dB bandwidth of 200 MHz at 9.0 V, enabling accurate characterization of RF components up to S-band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT2G66GT,115 | TTL-compatible inputs (VIH = 2.0 V min); identical ON resistance, timing, and package | Required when driving from 5 V microcontrollers with non-CMOS output stages | Select when interfacing legacy 5 V logic families; otherwise prefer 74HC2G66GT,115 for wider supply flexibility |
| TS5A23157DCUR | Lower ON resistance (0.9 Ω typ at 4.5 V); higher supply current (1 μA vs 0.1 μA); same X2SON8 footprint | Better for high-current analog paths (>10 mA); less suitable for ultra-low-power sensor nodes | Choose for precision instrumentation requiring <1 Ω RON; avoid if standby current <100 nA is mandatory |
Compared with 74HCT2G66GT,115, the 74HC2G66GT,115 offers broader supply range (2–10 V vs 4.5–5.5 V) but requires CMOS-level enables; versus TS5A23157DCUR, it trades 20× higher RON for 10× lower quiescent current and guaranteed –40 °C to +125 °C operation.
Availability
74HC2G66GT,115 is available at Aetrix Electronics and suitable for industrial sensor multiplexing, automotive cabin monitoring, portable medical devices, and test equipment requiring stable component supply across extended temperature ranges and high-reliability assembly processes.
Supply support for 74HC2G66GT,115 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
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.
The 74HC2G66GT,115 belongs to Nexperia's HC logic family, engineered for robust analog signal switching in space-constrained, thermally demanding applications such as automotive ECUs and industrial IoT edge nodes.
FAQ
What is the maximum allowable voltage on 1Y/1Z or 2Y/2Z pins relative to GND for 74HC2G66GT,115?
The absolute maximum rating permits –0.5 V to VCC + 0.5 V on all I/O pins. However, clamp diodes activate outside 0 V to VCC, so sustained operation beyond this range requires external current limiting. For example, applying +12 V to 1Y with a 10 kΩ series resistor limits clamp current to 0.7 mA - within the ±20 mA absolute max rating specified in Table 5.
Does 74HC2G66GT,115 support rail-to-rail analog signal switching?
Yes - the 74HC2G66GT,115 passes signals from GND to VCC with minimal distortion. At VCC = 9.0 V, total harmonic distortion is 0.02 % for 8.0 VPP sine waves, and ON resistance remains linear across the full range. The device does not support signals exceeding VCC or going below GND without external clamping.
How does thermal derating affect power dissipation in the XSON8 package of 74HC2G66GT,115?
For the SOT833-1 (XSON8) package, total power dissipation derates linearly at 3.1 mW/K above +68 °C. At +105 °C ambient, Ptot drops from 250 mW (at +25 °C) to 137 mW. This must be factored into worst-case channel current calculations: e.g., at 21 Ω RON and 100 mA load, power per switch is 210 mW - exceeding derated limit, requiring reduced current or forced cooling.
Can 74HC2G66GT,115 be used to switch differential analog signals?
No - the 74HC2G66GT,115 is a single-ended SPST switch per channel. Each 1Y–1Z or 2Y–2Z path conducts unidirectionally in terms of control logic but bidirectionally for analog signals. To switch differential pairs, two matched 74HC2G66GT,115 devices must be used with synchronized enables, accepting ΔRON ≤ 3 Ω mismatch as the primary error source.
What layout guidance ensures optimal THD performance for 74HC2G66GT,115 in audio paths?
Place 100 nF X7R ceramic decoupling capacitors ≤2 mm from VCC and GND terminals; route 1Y/1Z and 2Y/2Z traces differentially with 50 Ω controlled impedance; isolate analog switches from digital enable traces using ground guard rings; and avoid routing sensitive analog paths over split ground planes - all critical to achieving the documented 0.02 % THD at 9.0 V.
74HC2G66GT,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74HC2G66GT,115 FAQ
1.How can I place an order for 74HC2G66GT,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC2G66GT,115 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 74HC2G66GT,115 reliable?
The price and inventory of 74HC2G66GT,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC2G66GT,115 is usually 5 days.
3.What payment methods are accepted for 74HC2G66GT,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC2G66GT,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC2G66GT,115?
74HC2G66GT,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC2G66GT,115 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 74HC2G66GT,115?
For technical support, including 74HC2G66GT,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC2G66GT,115 requirements.
6.How does Aetrix verify that 74HC2G66GT,115 is sourced from the original manufacturer or authorized distributors?
All 74HC2G66GT,115 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 74HC2G66GT,115 meets industry standards.
7.What is the process for return or replacement of 74HC2G66GT,115?
All 74HC2G66GT,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC2G66GT,115, 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 74HC2G66GT,115 part is unused and in its original packaging.
Return procedure for 74HC2G66GT,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC2G66GT,115 Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
