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NXP Semiconductors PCA9535PW,118 — DC-DC Power Modules
NXP Semiconductors

NXP PCA9535PW,118 I2C I/O Expander, 16-bit, 400 kHz

MPNPCA9535PW,118
End of Life

NXP PCA9535PW,118, 16-bit I²C/SMBus I/O expander, 400 kHz clock, 2.3 V–5.5 V supply, push-pull outputs, interrupt output, 24-TSSOP package, -40°C to 85°C.

$2.46Ref. price · indicative, final on quote
PCA9535PW,118 datasheet
Packaging24-TSSOP (0.173", 4.40mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

PCA9535PW,118 Technical Specifications
ParameterValue
Output typePush-Pull
Mounting typeSurface Mount
Voltage2.3V ~ 5.5V
Current - output source (Sink)10mA, 25mA
Frequency400 kHz
InterfaceI²C, SMBus
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesPOR
Number of i (O)16
Case24-TSSOP (0.173\", 4.40mm Width)
Interrupt outputYes

Product details

The NXP PCA9535PW,118 is a 16-bit I²C-bus and SMBus I/O expander in a 24-TSSOP package. It provides 16 push-pull I/O pins that can be configured as inputs or outputs, with a 400 kHz clock interface. An interrupt output (INT) signals the host when an input changes, reducing bus polling overhead. The POR (power-on reset) feature ensures the I/Os default to inputs on power-up, preventing unintended drive conflicts.

Output drive: 10 mA source, 25 mA sink per pin

Each I/O pin can source 10 mA or sink 25 mA, enough to drive LEDs, small relays, or logic-level loads directly. The push-pull output stage eliminates the need for external pull-up resistors on output pins, simplifying the BOM. The total package current limit should be observed when driving multiple outputs simultaneously — the per-pin figures are not additive across all 16 pins at full load.

It is ROHS3 compliant.

Frequently asked questions

Is PCA9535PW,118 the tape and reel version of PCA9535PW?

Yes. The bare PCA9535PW (without suffix) typically ships in tubes. The die and electrical specifications are identical.

Does PCA9535PW support interrupt output?

Yes. The INT output pin asserts low when any input pin changes state, allowing the host to poll the expander only on demand rather than continuously. This reduces I²C bus traffic and host overhead in event-driven systems.