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Nexperia PCA9555PWJ product image
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Nexperia PCA9555PWJRoHS

Manufacturer
Nexperia
MPN
PCA9555PWJ
LCSC Part #
C20235737
Packaging
TSSOP-24
Customer #
Key Attributes
16 TSSOP-24 I/O Expanders RoHS
Datasheetpdf iconNexperia PCA9555PWJ
In-Stock: 100
100 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.4226$ 2.42
10+$ 2.0624$ 20.62
30+$ 1.8385$ 55.16
100+$ 1.6065$ 160.65
500+$ 1.5026$ 751.30
1,000+$ 1.4572$ 1457.20
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/I/O Expanders
ManufacturerNexperia
PackagingTSSOP-24
Interrupt OutputInterrupt Output
Operating Temperature-40℃~+85℃
Output TypePush-pull
Number of I/O16
FeaturesReset function;Built-in LED driver;Cascade and address expansion
Voltage - Supply2.3V~5.5V
Quiescent Supply Current1uA
Current - Output High(IOH)-
Number of Supporting Devices8
InterfaceI2C;SMBus
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The PCA9555 provides 16-bit general-purpose I/O (GPIO) expansion for I²C bus/SMBus applications. It is designed for a wide voltage range of 2.3V to 5.5V, with interrupt and default pull-up resistors on the GPIOs. When additional I/O is needed while minimizing interconnects, Nexperia's GPIO expanders offer an elegant solution — for example, in ACPI power switches, sensors, buttons, LEDs, and fan control. The PCA9555 contains a set of 8-bit input, output, configuration, and polarity inversion registers. At power-up, all I/Os default to inputs. Each I/O can be configured as an input or output by changing the corresponding bit in the configuration register. Data for each input or output is stored in the corresponding input or output register. The polarity inversion register can be programmed to invert the polarity of the input registers. The PCA9555 features an open-drain interrupt output that is asserted whenever any GPIO changes state from its corresponding input port register value. A power-on reset sets all registers to their default values and initializes the device state machine. The PCA9555 has three address pins — A0, A1, and A2 — which can be used to configure the I²C bus slave address of the device, allowing up to eight devices to share the same I²C bus/SMBus.

Features

AI Translation
  • I²C bus to parallel port expander
  • Operating supply voltage range: 2.3V to 5.5V
  • Ultra-low standby current consumption: 1μA maximum
  • Schmitt-trigger inputs allow slow input transitions with improved switching noise immunity on SCL and SDA inputs
  • Vhys = 0.10×VCC (typical)
  • Noise filter on SCL and SDA inputs
  • 5V tolerant I/O
  • 16 I/O pins configured as inputs with weak pull-up resistors at power-on
  • Open-drain active-low interrupt output (INT)
  • 400kHz fast-mode I²C bus
  • Internal power-on reset
  • Glitch-free power-on
  • Latched outputs with 25mA maximum drive capability for direct LED drive
  • Latch-up performance exceeds 100mA per JESD78 Class II
  • ESD protection: HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2000V; CDM ANSI/ESDA/JEDEC JS-002 Class C3 exceeds 1000V
  • TSSOP24 package: plastic thin shrink small outline package; 24-pin; body width 4.4mm
  • Operating temperature range: -40°C to +85°C