SN74LVC1G08 Single 2-Input Positive-AND Gate

NYFEA SN74LVC1G08 is a single 2-input positive-AND gate specified for 1.65 V to 5.5 V operation. It accepts input voltages up to 5.5 V, supports Ioff partial-power-down operation and is offered in green SOT23-5 and SC70-5 packages.

Product scope: In positive logic, the device implements Y = A · B. Y is HIGH only when both A and B are HIGH. It is a push-pull AND gate, not a Schmitt-trigger input, open-drain output, tri-state buffer or analog switch.

Use the current controlled PDF for threshold limits, output loading, switching conditions, package tolerances, tape orientation and production-release decisions.

Photorealistic NYFEA SN74LVC1G08 SOT23-5 two-input AND gate product appearance
NYFEA SN74LVC1G08 SOT23-5 product appearance. The full model marking is shown for page identification; use the dimensioned PDF for incoming inspection and PCB-library release.
LOGIC FUNCTION2-input positive-AND, Y = A · B
SUPPLYVCC 1.65 V to 5.5 V
INPUT RANGEVI 0 V to 5.5 V
TEMPERATURE-40 °C to +125 °C ambient

Product Overview and Selection Scope

SN74LVC1G08 integrates one 2-input positive-AND gate. The output is HIGH only when A and B are both HIGH. The specified operating supply is 1.65 V to 5.5 V, while each input may be driven from 0 V to 5.5 V under the recommended operating conditions. This input tolerance can assist mixed-voltage control paths, but the receiving logic threshold, output swing, power sequence and current paths still require system-level validation.

Signal qualification

Y asserts HIGH only after both positive-logic conditions are present. Either LOW input forces Y LOW.

Voltage domain

VCC is 1.65 V to 5.5 V for operation. VIH and VIL limits change with VCC; use the complete threshold table.

Power-down behavior

Ioff is specified with VCC = 0 V and VI or VO = 5.5 V to limit backflow through the powered-down device path.

Package choice

SOT23-5 and SC70-5 share the pin assignment but have different markings, footprints and thermal impedances.

Selection boundary: The PDF does not specify Schmitt-trigger hysteresis, open-drain operation, tri-state control, wired logic, analog switching, fail-safe system behavior or end-product qualification. Select another function when any of those behaviors is required.

Logic Function, Truth Table and Pin Assignment

In positive logic, Y = A · B. Y is LOW when either input is LOW and becomes HIGH only for A = HIGH and B = HIGH.

SN74LVC1G08 two-input AND gate symbol and truth table
Positive-AND logic symbol and four-state truth table based on page 2 of the supplied Rev A.1 specification.
SN74LVC1G08 SOT23-5 and SC70-5 top-view pin configuration
Common top view for SOT23-5 and SC70-5: pin 1 A, pin 2 B, pin 3 GND, pin 4 Y and pin 5 VCC.
PinNameTypeFunctionEngineering note
1AInputFirst positive-logic inputHold at VCC or GND when unused.
2BInputSecond positive-logic inputHold at VCC or GND when unused.
3GNDPowerGroundUse a short return to the local bypass capacitor.
4YOutputPush-pull AND outputDo not connect to another active output.
5VCCPowerSupplyPlace local decoupling near pins 5 and 3.

Ordering Codes and Package Selection

Ordering numberTemperature rangePackageTop markingMSLPacking
SN74LVC1G08DCKR-40 °C to +125 °CSC70-5 / SOT353 equivalentCE5MSL 3Tape and reel, 3,000 units
SN74LVC1G08DBVR-40 °C to +125 °CSOT23-5C08KMSL 3Tape and reel, 3,000 units

Additional lot, date, vendor, logo or environmental markings may appear. Confirm the full ordering code, package drawing, top marking and Q3 tape orientation during receiving inspection.

Recommended Operating Conditions and Absolute Limits

Recommended operating conditions define the functional design range. Absolute maximum ratings are stress limits only and do not establish normal operation or long-term reliability.

ParameterConditionMinimumMaximumUnit
Supply voltage, VCCOperating1.655.5V
Supply voltage, VCCData retention only1.55.5V
Input voltage, VIOperating05.5V
Output voltage, VOOperating0VCCV
Input rise/fall, tr or tfVCC = 1.8 V ±0.15 V or 2.5 V ±0.2 V-20ns/V
Input rise/fall, tr or tfVCC = 3.3 V ±0.3 V-10ns/V
Input rise/fall, tr or tfVCC = 5 V ±0.5 V-5ns/V
Ambient temperature, TAOperating-40125°C

Absolute maximum and handling limits

ParameterConditionMinimumMaximumUnit
Supply voltageVCC-0.56.5V
Input voltageVI-0.56.5V
Output voltageHigh-impedance or power-off state-0.56.5V
Output voltageHIGH or LOW state-0.5VCC + 0.5V
Input clamp currentVI < 0 V-50mA
Output clamp currentVO < 0 V-50mA
Continuous output currentIO±50mA
Continuous VCC or GND current-±100mA
Junction temperatureTJ-65150°C
Storage temperatureTstg-65150°C
Thermal impedanceθJA = 208 °C/W for SOT23-5 and 283 °C/W for SC70-5, calculated in accordance with JESD-51.
HBM / CDM / MM±4000 V / ±1000 V / ±200 V. Handle in an ESD-protected area.
Power dissipationUse PD = (TJ(MAX) - TA) / RθJA and the actual PCB thermal environment.

DC Characteristics and Logic Levels

Unless otherwise noted, full-range limits apply from -40 °C to +125 °C. Typical values are characterized at +25 °C and are not guaranteed production limits.

VCC rangeVIH minimumVIL maximumEngineering interpretation
1.65 V to 1.95 V0.65 × VCC0.30 × VCCThresholds scale with supply.
2.3 V to 2.7 V1.7 V0.7 VUse the fixed guaranteed limits.
3.0 V to 3.6 V2.2 V0.8 VUse the fixed guaranteed limits.
4.5 V to 5.5 V0.70 × VCC0.30 × VCCThresholds scale with supply.

Output levels, leakage and supply current

ParameterTest conditionVCCTemperatureLimit or typical valueUnit
VOHIOH = -100 µA1.65 V to 5.5 VFullMinimum VCC - 0.1 VV
VOHIOH = -4 / -8 / -16 / -24 / -32 mA1.65 / 2.3 / 3.0 / 3.0 / 4.5 VFullMinimum 1.2 / 1.9 / 2.4 / 2.3 / 3.8 VV
VOLIOL = 100 µA1.65 V to 5.5 VFullMaximum 0.1 VV
VOLIOL = 4 / 8 / 16 / 24 / 32 mA1.65 / 2.3 / 3.0 / 3.0 / 4.5 VFullMaximum 0.45 / 0.30 / 0.40 / 0.55 / 0.55 VV
IIA or B at 5.5 V or GND0 V to 5.5 V+25 °C / FullTypical ±0.1 µA / maximum ±5 µAµA
IoffVI or VO = 5.5 V0 V+25 °C / FullTypical ±0.1 µA / maximum ±10 µAµA
ICCVI = 5.5 V or GND, IO = 01.65 V to 5.5 V+25 °C / FullTypical 0.1 µA / maximum 10 µAµA
ΔICCOne input at VCC - 0.6 V; other at VCC or GND3 V to 5.5 VFullMaximum 500 µAµA
Threshold boundary: Input tolerance to 5.5 V does not convert the gate into a general-purpose level translator. Verify the guaranteed output HIGH level against the receiving device's VIH requirement at the actual VCC and load.

AC Switching and Test Conditions

The Rev A.1 PDF lists typical propagation-delay values under the stated supply, resistor and capacitive loads. Because no maximum tpd values are given in the table, these numbers are engineering reference values rather than guaranteed worst-case timing limits.

ParameterVCCLoad conditionValue statusListed valueUnit
Propagation delay, tpd1.8 V ±0.15 VCL = 30 pF, RL = 1 kΩTypical11.6ns
Propagation delay, tpd2.5 V ±0.2 VCL = 30 pF, RL = 500 ΩTypical6.6ns
Propagation delay, tpd3.3 V ±0.3 VCL = 50 pF, RL = 500 ΩTypical5.4ns
Propagation delay, tpd5.0 V ±0.5 VCL = 50 pF, RL = 500 ΩTypical4.3ns
Input capacitance, Ci0 VSource table conditionTypical4pF
Power-dissipation capacitance, Cpd3.3 V / 5.0 Vf = 10 MHzTypical26 / 31pF
SN74LVC1G08 propagation-delay load circuit and PDF-listed typical test values
Propagation-delay measurement summary based on page 8. CL includes probe and jig capacitance; the test source specifies one output transition per measurement.

Timing boundary: Do not convert the listed typical values into a guaranteed maximum frequency. The PDF includes generic enable/disable waveforms, but SN74LVC1G08 has no output-enable pin; validate finished-board timing over voltage, load and temperature.

Power Integrity, Input Handling and PCB Layout

The following layout is application guidance rather than a guaranteed reference circuit. Use the electrical tables for limits and validate the complete board power-distribution network and receiving logic interface.

SN74LVC1G08 bypass capacitor and input handling guidance
Keep the bypass loop short, define both inputs and verify the push-pull output load.
  • Do not leave inputs floating: the PDF requires unused inputs to be held at VCC or GND.
  • Apply the correct edge-rate limit: the maximum tr/tf entry changes from 20 ns/V at low supply to 5 ns/V at 5 V.
  • Check receiving VIH: a 5.5 V-tolerant input does not guarantee that a low-VCC output can drive every higher-voltage receiver.
  • Budget transition current: ΔICC is listed as 500 µA maximum under the stated VCC - 0.6 V input condition.
  • Prevent output contention: Y is push-pull and has no output-enable control.
  • Validate partial power-down: Ioff limits the device path; other PCB components can still create back-power paths.

SOT23-5 and SC70-5 Packages, Land Patterns and Packing

Both green package options share the same logical pin assignment but use different body dimensions, lead pitch, top marking and thermal impedance. Do not substitute one footprint for the other.

SN74LVC1G08 SOT23-5 and SC70-5 package outlines and recommended land patterns
High-resolution package and reference land-pattern summary based on pages 10 and 11 of the supplied specification.
DimensionSOT23-5SC70-5Unit
Overall height A1.050 to 1.2500.900 to 1.100mm
Body length D2.820 to 3.0202.000 to 2.200mm
Body width E1.500 to 1.7001.150 to 1.350mm
Overall lead span E12.650 to 2.9502.150 to 2.450mm
Lead pitch e0.950 BSC0.650 BSCmm
Outer lead pitch e11.800 to 2.0001.300 BSCmm
Lead width b0.300 to 0.5000.150 to 0.350mm
Lead thickness c0.100 to 0.2000.080 to 0.150mm
Lead length L0.300 to 0.6000.260 to 0.460mm
SN74LVC1G08 SOT23-5 and SC70-5 tape-and-reel dimensions
Both packages use a 7-inch reel, 9.5 mm reel width, 8.0 mm carrier tape, 4.0 mm pitch and Q3 pin-1 quadrant; pocket dimensions differ by package.

Application Guidance and Design Limitations

The Rev A.1 specification lists active noise elimination, barcode scanners, blood-pressure monitors, CPAP machines, fingerprint identification and network-attached storage. These are possible use contexts, not end-product approvals.

Active noise elimination logic iconActive Noise EliminationCombine two digital qualification signals. The gate does not process the analog audio path.
Barcode scanner iconBarcode ScannersCondition local interlock or ready states after checking edge rate, thresholds and load.
Blood pressure monitor iconBlood-Pressure MonitorsUse only in non-safety logic paths after complete medical-system risk and qualification review.
CPAP machine iconCPAP MachinesCombine supervisory signals; do not treat this standard gate as a life-support safety element.
Fingerprint identification terminal iconFingerprint IdentificationCombine detect or enable conditions while respecting power-up and partial-power-down sequencing.
Qualification boundary: The supplied specification does not establish automotive, medical, functional-safety, life-support or fault-tolerant qualification. Validate EMC, ESD protection, power sequencing, thermal limits, assembly and environmental performance in the finished product.

SN74LVC1G08 Engineering FAQs

What logic function does SN74LVC1G08 implement?

It is one 2-input positive-AND gate. Y = A · B, so Y is HIGH only when both inputs are HIGH.

What supply range is recommended?

VCC is specified from 1.65 V to 5.5 V for operation. The separate 1.5 V to 5.5 V entry is identified as data retention only.

Can the inputs accept 5.5 V when VCC is lower?

The recommended input range is 0 V to 5.5 V and input leakage is characterized across VCC = 0 V to 5.5 V. Still verify output-level compatibility and all board-level sequencing paths.

Is SN74LVC1G08 a Schmitt-trigger AND gate?

No. The specification does not provide hysteresis thresholds. Use a Schmitt-trigger-qualified device when slow or noisy input transitions require hysteresis.

Does the output support tri-state or open-drain operation?

No. Y is a push-pull output with no enable pin. Do not connect it to another actively driven output or use it for wired logic.

What propagation-delay values are listed?

The PDF lists typical tpd values of 11.6 ns at 1.8 V, 6.6 ns at 2.5 V, 5.4 ns at 3.3 V and 4.3 ns at 5 V under the stated loads. It does not list maximum tpd values in that table.

What does Ioff provide?

Ioff is specified with VCC = 0 V and VI or VO = 5.5 V, with ±10 µA maximum over the full temperature range. It limits the device path but does not eliminate other board-level back-power routes.

Which package should be selected?

SN74LVC1G08DBVR is SOT23-5 with C08K marking. SN74LVC1G08DCKR is SC70-5 with CE5 marking. Both are MSL 3 and packed 3,000 units per reel.

Can unused inputs be left open?

No. The PDF explicitly requires all unused inputs to be held at VCC or GND.

Do the listed applications establish product certification?

No. The application list identifies possible use contexts only. Qualification, safety, EMC, reliability and production validation remain system responsibilities.

Technical source and design authority

This page summarizes the SN74LVC1G08 Rev A.1 product specification for component evaluation and engineering reference. It does not replace the complete controlled specification. Confirm the current revision, ordering code, marking, pin assignment, logic limits, absolute maximum ratings, DC and AC conditions, package tolerances, PCB layout, assembly process and qualification requirements before production release.

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