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PCA9555AHF,128

Interface - I/O Expanders Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up

Product Category: I/O Expanders
Mfr. Part #
PCA9555AHF,128
Manufacturer: NXP
Package: Cut Tape/Reel
Lead Free Status /RoHS Status:
Data Sheet: PCA9555AHF,128 Datasheet
Inventory: In Stock

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Mfr. Part #: PCA9555AHF,128

Specifications
Product Details

Specifications

Manufacturer NXP

Mounting Style SMD/SMT

Package / Case HWQFN-24

Interface Type I2C, Serial, SMBus

Number of I/Os 16 I/O

Interrupt Output With Interrupt

Supply Voltage - Min 1.65 V

Supply Voltage - Max 5.5 V

Maximum Clock Frequency 100 kHz

Minimum Operating Temperature - 40 C

Maximum Operating Temperature + 85 C

Packaging Cut Tape

Packaging Reel

ESD Protection 2 kV

Input Voltage 1.65 V to 5.5 V

Output Current 25 mA

Output Voltage 6.5 V

Product I/O Expanders

Type I/O Expander

Brand NXP Semiconductors

Logic Type I2C, SMBus

Operating Supply Current 160 mA

Operating Supply Voltage 1.65 V to 5.5 V

Pd - Power Dissipation 200 mW

Product Type I/O Expanders

Standard Pack Qty 6000

Subcategory Interface ICs

Product Details

General description

The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors for I2C-bus/SMBus applications. NXP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs, fan control, etc.
In addition to providing a flexible set of GPIOs, the wide VDD range of 1.65 V to 5.5 V allows the PCA9555A to interface with next-generation microprocessors and microcontrollers where supply levels are dropping down to conserve power.
The PCA9555A contains the PCA9555 register set of four pairs of 8-bit Configuration, Input, Output, and Polarity Inversion registers.

Features and benefits

â– I2C-bus to parallel port expander
â– Operating power supply voltage range of 1.65 V to 5.5 V
â– Low standby current consumption:
â™¦ 1.5 ïA (typical at 5 V VDD)
â™¦ 1.0 ïA (typical at 3.3 V VDD)
â– Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
â™¦ Vhys = 0.10 ï‚´ VDD (typical)
â– 5 V tolerant I/Os
â– Open-drain active LOW interrupt output (INT)
â– 400 kHz Fast-mode I2C-bus
â– Internal power-on reset
â– Power-up with all channels configured as inputs with weak pull-up resistors
â– No glitch on power-up
â– Latched outputs with 25 mA drive maximum capability for directly driving LEDs
â– Latch-up performance exceeds 100 mA per JESD78, Class II
â– ESD protection exceeds JESD22
â– 2000 V Human Body Model (A114-A)
â– 1000 V Charged-Device Model (C101)
â– Packages offered: TSSOP24, HWQFN24

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Mfr. Part #: PCA9555AHF,128