 
74LVC2G66
Bilateral switch
The 74LVC2G66 is a dual single pole, single-throw analog switch. Each switch has two input/output terminals (nY and nZ) and a digital enable input (nE). When nE is LOW, the analog switch is turned off. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.
Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.
Features and benefits
- Wide supply voltage range from 1.65 V to 5.5 V 
- Very low ON resistance: - 7.5 Ω (typical) at VCC = 2.7 V 
- 6.5 Ω (typical) at VCC = 3.3 V 
- 6 Ω (typical) at VCC = 5 V 
 
- Switch current capability of 32 mA 
- Overvoltage tolerant inputs to 5.5 V 
- High noise immunity 
- CMOS low power consumption 
- TTL interface compatibility at 3.3 V 
- Latch-up performance meets requirements of JESD78 Class I 
- Complies with JEDEC standards: - JESD8-7 (1.65 V to 1.95 V) 
- JESD8-5 (2.3 V to 2.7 V) 
- JESD8C (2.7 V to 3.6 V) 
- JESD36 (4.5 V to 5.5 V) 
 
- ESD protection: - HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V 
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V 
 
- Multiple package options 
- Specified from -40 °C to +85 °C and -40 °C to +125 °C 
Parametrics
| Type number | Configuration | VCC (V) | Logic switching levels | RON (Ω) | RON(FLAT) (Ω) | f(-3dB) (MHz) | THD (%) | Xtalk (dB) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC2G66DC | SPST-NO | 1.65 - 5.5 | CMOS/LVTTL | 15 | 1.5 | 440 | 0.005 | - | very low | -40~125 | 192 | 26.5 | 101 | VSSOP8 | |
| 74LVC2G66DP | SPST-NO | 2.3 - 5.5 | 1.65 - 5.5 | CMOS/LVTTL | 15 | 1.5 | 440 | 0.005 | - | very low | -40~125 | 196 | 15.1 | 99 | TSSOP8 | 
| 74LVC2G66GN | SPST-NO | 2.3 - 5.5 | 1.65 - 5.5 | CMOS/LVTTL | 15 | 1.5 | 440 | 0.005 | - | very low | -40~125 | 209 | 5.7 | 125 | XSON8 | 
| 74LVC2G66GT | SPST-NO | 2.3 - 5.5 | 1.65 - 5.5 | CMOS/LVTTL | 15 | 1.5 | 440 | 0.005 | - | very low | -40~125 | 285 | 3.8 | 128 | XSON8 | 
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing | 
|---|---|---|---|---|---|---|---|
| 74LVC2G66DC | 74LVC2G66DC,125 (935274429125) | Active | V66 |   VSSOP8 (SOT765-1) | SOT765-1 | SOT765-1_125 | |
| 74LVC2G66DP | 74LVC2G66DP,125 (935274428125) | Active | V66 |   TSSOP8 (SOT505-2) | SOT505-2 | SOT505-2_125 | |
| 74LVC2G66GN | 74LVC2G66GN,115 (935292247115) | Active | VL |   XSON8 (SOT1116) | SOT1116 | REFLOW_BG-BD-1 | SOT1116_115 | 
| 74LVC2G66GT | 74LVC2G66GT,115 (935280087115) | Active | V66 |   XSON8 (SOT833-1) | SOT833-1 | SOT833-1_115 | 
All type numbers in the table below are discontinued.
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing | 
|---|---|---|---|---|---|---|---|
| 74LVC2G66GM | 74LVC2G66GM,125 (935280572125) | Obsolete |   XQFN8 (SOT902-2) | SOT902-2 | SOT902-2_125 | 
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | 
|---|---|---|---|---|
| 74LVC2G66DC | 74LVC2G66DC,125 | 74LVC2G66DC |  |   | 
| 74LVC2G66DP | 74LVC2G66DP,125 | 74LVC2G66DP |  |   | 
| 74LVC2G66GN | 74LVC2G66GN,115 | 74LVC2G66GN |  |   | 
| 74LVC2G66GT | 74LVC2G66GT,115 | 74LVC2G66GT |  |   | 
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | 
|---|---|---|---|---|
| 74LVC2G66GM | 74LVC2G66GM,125 | 74LVC2G66GM |  |   | 
Documentation (24)
| File name | Title | Type | Date | 
|---|---|---|---|
| 74LVC2G66 | Bilateral switch | Data sheet | 2023-08-23 | 
| AN10161 | PicoGate Logic footprints | Application note | 2002-10-29 | 
| AN11009 | Pin FMEA for LVC family | Application note | 2019-01-09 | 
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 | 
| 001aaa532 | Block diagram: 74LVC2G66DC, 74LVC2G66DP, 74LVC2G66GM, 74LVC2G66GT, 74LVCV2G66DC, 74LVCV2G66DP | Block diagram | 2009-11-04 | 
| Nexperia_document_guide_MiniLogic_PicoGate_201901 | PicoGate leaded logic portfolio guide | Brochure | 2019-01-07 | 
| Nexperia_document_guide_MiniLogic_MicroPak_201808 | MicroPak leadless logic portfolio guide | Brochure | 2018-09-03 | 
| SOT765-1 | 3D model for products with SOT765-1 package | Design support | 2020-01-22 | 
| SOT505-2 | 3D model for products with SOT505-2 package | Design support | 2019-01-18 | 
| SOT1116 | 3D model for products with SOT1116 package | Design support | 2023-02-02 | 
| SOT833-1 | 3D model for products with SOT833-1 package | Design support | 2021-01-28 | 
| lvc2g66 | 74LVC2G66 IBIS model | IBIS model | 2015-02-19 | 
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 | 
| VSSOP8_SOT765-1_mk | plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm body | Marcom graphics | 2017-01-28 | 
| XQFN8_SOT902-2_mk | plastic, extremely thin quad flat package; 8 terminals; 0.55 mm pitch; 1.6 mm x 1.6 mm x 0.5 mm body | Marcom graphics | 2017-01-28 | 
| SOT765-1 | plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm body | Package information | 2022-06-03 | 
| SOT505-2 | plastic, thin shrink small outline package; 8 leads; 0.65 mm pitch; 3 mm x 3 mm x 1.1 mm body | Package information | 2022-06-03 | 
| SOT996-2 | plastic, leadless extremely thin small outline package; 8 terminals; 0.5 mm pitch; 3 mm x 2 mm x 0.5 mm body | Package information | 2020-04-21 | 
| SOT902-2 | plastic, leadless extremely thin quad flat package; 8 terminals; 0.5 mm pitch; 1.6 mm x 1.6 mm x 0.5 mm body | Package information | 2020-04-21 | 
| SOT1116 | plastic, leadless extremely thin small outline package; 8 terminals; 0.3 mm pitch; 1.2 mm x 1 mm x 0.35 mm body | Package information | 2022-06-02 | 
| SOT833-1 | plastic, leadless extremely thin small outline package; 8 terminals; 0.5 mm pitch; 1 mm x 1.95 mm x 0.5 mm body | Package information | 2022-06-03 | 
| REFLOW_BG-BD-1 | Reflow soldering profile | Reflow soldering | 2021-04-06 | 
| MAR_SOT1116 | MAR_SOT1116 Topmark | Top marking | 2013-06-03 | 
| MAR_SOT833 | MAR_SOT833 Topmark | Top marking | 2013-06-03 | 
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
Models
| File name | Title | Type | Date | 
|---|---|---|---|
| SOT765-1 | 3D model for products with SOT765-1 package | Design support | 2020-01-22 | 
| SOT505-2 | 3D model for products with SOT505-2 package | Design support | 2019-01-18 | 
| SOT1116 | 3D model for products with SOT1116 package | Design support | 2023-02-02 | 
| SOT833-1 | 3D model for products with SOT833-1 package | Design support | 2021-01-28 | 
| lvc2g66 | 74LVC2G66 IBIS model | IBIS model | 2015-02-19 | 
Ordering, pricing & availability
Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.