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NXP Semiconductors PCA9517AD,118 — Logic ICs

NXP PCA9517AD,118 I²C Buffer, ReDriver, 400 kHz, 8-SOIC

MPNPCA9517AD,118
End of Life

NXP PCA9517AD,118 I²C Buffer, ReDriver, 2-channel, 400 kHz max data rate, 2.7 V to 5.5 V supply, -40°C to 85°C, 8-SOIC surface mount package.

$1.72Ref. price · indicative, final on quote
NXP Semiconductors PCA9517AD,118 datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

PCA9517AD,118 specifications
ParameterValue
TypeBuffer, ReDriver
MountingSurface Mount
Voltage2.7V ~ 5.5V
Current - supply5mA
Operating temperature-40°C ~ 85°C
Input2-Wire Bus
Output2-Wire Bus
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsI²C
Case8-SOIC (0.154\", 3.90mm Width)
Data rate400kHz
Channels2
Capacitance - input6 pF

Product details

What the PCA9517AD,118 does on the bus

The NXP PCA9517AD,118 is a 2-channel I²C buffer and repeater (ReDriver) that isolates bus capacitance and allows longer traces or more devices on an I²C bus running up to 400 kHz. It sits between two I²C segments, regenerating the bus signals so that the total capacitive load on each segment stays within the 400 pF Fast-mode limit.

Supply voltage and level-shifting capability

Input capacitance is 6 pF per channel, which adds negligible load to the upstream segment.

Frequently asked questions

Can PCA9517AD,118 be used for I²C level shifting?

Yes.