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PCA9539PW,118

The PCA9539PW,118 is an electronic component. View the full PCA9539PW,118 datasheet below including key specifications.

PCA9539PW,118 shares its datasheet with PCA9539, whose page lists every part number it covers.

Official PCA9539PW,118 datasheet (PDF) — the source this page was extracted from.

PCA9539PW,118 Key Specifications

ParameterValue
Number of I/O pins16
Standby current consumption1 μA (maximum)
SCL and SDA input hysteresis (Vhys)0.10 × VCC (typical)
ESD protection HBMexceeds 2000 V (ANSI/ESDA/JEDEC JS-001 class 2)
ESD protection CDMexceeds 1000 V (ANSI/ESDA/JEDEC JS-002 class C3)
I²C slave addresses4 possible addresses (configurable via A0, A1 pins)

PCA9539PW,118 Overview

Part: PCA9539 — Nexperia

Type: I²C and SMBus Low-Power I/O Expander

Description: A 16-bit I²C and SMBus low-power I/O expander with interrupt output and reset pin, operating from 2.3 V to 5.5 V, featuring 5 V tolerant I/Os and 400 kHz Fast-mode I²C-bus.

Operating Conditions:

  • Supply voltage: 2.3 V to 5.5 V
  • Operating temperature: -40 °C to +85 °C
  • I²C-bus speed: 400 kHz (Fast-mode)

Absolute Maximum Ratings:

  • Max I/O voltage: 5.5 V (5 V tolerant I/Os)
  • Max output drive capability: 25 mA (for directly driving LEDs)
  • Latch-up performance: exceeds 100 mA per JESD78, Class II

Key Specs:

  • Number of I/O pins: 16
  • Standby current consumption: 1 μA (maximum)
  • SCL and SDA input hysteresis (Vhys): 0.10 × VCC (typical)
  • ESD protection HBM: exceeds 2000 V (ANSI/ESDA/JEDEC JS-001 class 2)
  • ESD protection CDM: exceeds 1000 V (ANSI/ESDA/JEDEC JS-002 class C3)
  • I/O default state at power-up: Inputs
  • I²C slave addresses: 4 possible addresses (configurable via A0, A1 pins)

Features:

  • I²C-bus to parallel port expander
  • Ultra low standby current consumption
  • Schmitt-trigger action on SCL and SDA inputs for noise immunity
  • Noise filter on SCL and SDA inputs
  • Open-drain active LOW interrupt output (INT)
  • Reset input (RESET) for resetting to default values
  • Internal power-on reset
  • No glitch on power-up
  • Latched outputs with 25 mA drive maximum capability
  • Configuration registers for Input, Output, Polarity Inversion

Applications:

  • ACPI power switches
  • Sensors
  • Push buttons
  • LEDs
  • Fan control

Package:

  • TSSOP24 (plastic thin shrink small outline package; 24 leads; body width 4.4 mm)

PCA9539PW,118 Features

  • I²C-bus to parallel port expander
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • Ultra low standby current consumption:
  • 1 μA (maximum)
  • Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
  • Vhys = 0.10 × VCC (typical)
  • Noise filter on SCL and SDA inputs
  • 5 V tolerant I/Os
  • 16 I/O pins which power up configured in input state
  • Open-drain active LOW interrupt output (INT)
  • Reset input (RESET) for resetting PCA9539 to default values
  • 400 kHz Fast-mode I²C-bus
  • Internal power-on reset
  • No glitch on power-up
  • Latched outputs with 25 mA drive maximum capability for directly driving LEDs
  • Latch-up performance exceeds 100 mA per JESD78, Class II
  • ESD protection:
  • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
  • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
  • TSSOP24 package: plastic thin shrink small outline package; 24 leads; body width 4.4 mm
  • Specified from -40 °C to +85 °C

Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers

PCA9539PW,118 Pin Configuration

Table 2. Pin description

SymbolPinTypeDescription
INT1OInterrupt output. Connect to V CC through a pull-up resistor
A12IAddress input 1. Connect directly to V CC or GND
RESET3IActive Low reset input. Connect to V CC through a pull-up resistor if no active connection is used.
P0_0 [1]4I/OParallel port I/O. Push-pull driver. At power on, P0_0 is configured as input
P0_1 [1]5I/OParallel port I/O. Push-pull driver. At power on, P0_1 is configured as input
P0_2 [1]6I/OParallel port I/O. Push-pull driver. At power on, P0_2 is configured as input
P0_3 [1]7I/OParallel port I/O. Push-pull driver. At power on, P0_3 is configured as input
P0_4 [1]8I/OParallel port I/O. Push-pull driver. At power on, P0_4 is configured as input
P0_5 [1]9I/OParallel port I/O. Push-pull driver. At power on, P0_5 is configured as input
P0_6 [1]10I/OParallel port I/O. Push-pull driver. At power on, P0_6 is configured as input
P0_7 [1]11I/OParallel port I/O. Push-pull driver. At power on, P0_7 is configured as input
GND12powerGround
P1_0 [2]13I/OParallel port I/O. Push-pull driver. At power on, P1_0 is configured as input
P1_1 [2]14I/OParallel port I/O. Push-pull driver. At power on, P1_1 is configured as input
P1_2 [2]15I/OParallel port I/O. Push-pull driver. At power on, P1_2 is configured as input
P1_3 [2]16I/OParallel port I/O. Push-pull driver. At power on, P1_3 is configured as input
P1_4 [2]17I/OParallel port I/O. Push-pull driver. At power on, P1_4 is configured as input
P1_5 [2]18I/OParallel port I/O. Push-pull driver. At power on, P1_5 is configured as input
P1_6 [2]19I/OParallel port I/O. Push-pull driver. At power on, P1_6 is configured as input
P1_7 [2]20I/OParallel port I/O. Push-pull driver. At power on, P1_7 is configured as input

Table 2. Pin description

PCA9539PW,118 Thermal Information

SymbolParameterConditionsMaxUnit
Z th(j-a)transient thermal impedance from junction to ambientTSSOP24 package[1]100K/W

Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers

PCA9539PW,118 Package Information

UNITA max.A 1A 2A 3b pcD (1)E (2)eH ELL pQvwy(1) Zθ
mm1.10.15 0.050.95 0.800.250.30 0.190.2 0.17.9 7.74.5 4.30.656.6 6.210.75 0.500.4 0.30.20.130.10.5 0.28 0 o o
OUTLINE VERSIONREFERENCESREFERENCESREFERENCESEUROPEANISSUE DATE
IECJEDECJEITAPROJECTION
SOT355-1MO-15399-12-27 03-02-19

Fig. 27. Package outline SOT355-1 (TSSOP24)

Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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