PCA9555

ACTIVO

Expansor de E/S I2C/SMBus de 16 bits de 2,3 a 5,5 V con interrupción, pull-up débil y registros de c

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Hoja de datos

document-pdfAcrobat PCA9555 Remote 16-bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers datasheet (Rev. J) (Inglés) PDF | HTML

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TCA9555

ACTIVO

Expansor de E/S I2C/SMBus de 1.65 V a 5.5 V de 16 bits con registros de configuración y subida débil Performance enhancements for power-on reset, interrupt, and lower voltage operation.

PCA9555

ACTIVO

Hoja de datos

Haga su pedido ahora

Detalles del producto

Number of I/Os

16

Features

Configuration registers, Interrupt pin

Supply voltage (min) (V)

2.3

Supply voltage (max) (V)

5.5

Addresses

8

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

Number of I/Os

16

Features

Configuration registers, Interrupt pin

Supply voltage (min) (V)

2.3

Supply voltage (max) (V)

5.5

Addresses

8

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

SOIC (DW)

24

159.65 mm² 15.5 x 10.3

SSOP (DB)

24

63.96 mm² 8.2 x 7.8

SSOP (DBQ)

24

51.9 mm² 8.65 x 6

TSSOP (PW)

24

49.92 mm² 7.8 x 6.4

TVSOP (DGV)

24

32 mm² 5 x 6.4

VQFN (RGE)

24

16 mm² 4 x 4

Low Standby-Current Consumption of 1 µA Max
I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
5-V Tolerant I/O Ports
Compatible With Most Microcontrollers
400-kHz Fast I²C Bus
Address by Three Hardware Address Pins for Use of up to Eight Devices
Polarity Inversion Register
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

Low Standby-Current Consumption of 1 µA Max
I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
5-V Tolerant I/O Ports
Compatible With Most Microcontrollers
400-kHz Fast I²C Bus
Address by Three Hardware Address Pins for Use of up to Eight Devices
Polarity Inversion Register
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

This 16-bit I/O expander for the two-line bidirectional bus (I²C) is designed for 2.3-V to 5.5-V V_CC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I²C interface [serial clock (SCL), serial data (SDA)].

The PCA9555 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.

This 16-bit I/O expander for the two-line bidirectional bus (I²C) is designed for 2.3-V to 5.5-V V_CC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I²C interface [serial clock (SCL), serial data (SDA)].

The PCA9555 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	PCA9555 Remote 16-bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers datasheet (Rev. J)	PDF \| HTML	11 mar 2021
	Application note	I2C: What is the Auto Increment Feature?	PDF \| HTML	05 jul 2024
	Application note	Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A)	PDF \| HTML	03 jul 2024
	Application note	I2C Dynamic Addressing		25 abr 2019
	Selection guide	Logic Guide (Rev. AB)		12 jun 2017
	Application note	Choosing the Correct I2C Device for New Designs	PDF \| HTML	07 sep 2016
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)		02 dic 2015
	Application note	Understanding the I2C Bus	PDF \| HTML	30 jun 2015
	Application note	I2C Bus Pull-Up Resistor Calculation	PDF \| HTML	13 feb 2015
	Application note	Programming Fun Lights With TI's TCA6507		30 nov 2007
	Application note	Semiconductor Packing Material Electrostatic Discharge (ESD) Protection		08 jul 2004

Diseño y desarrollo

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Modelo de simulación

PCA9555 IBIS Model

SCPM035.ZIP (98 KB) - IBIS Model

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Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)

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PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)

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Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
SOIC (DW)	24	Ultra Librarian
SSOP (DB)	24	Ultra Librarian
SSOP (DBQ)	24	Ultra Librarian
TSSOP (PW)	24	Ultra Librarian
TVSOP (DGV)	24	Ultra Librarian
VQFN (RGE)	24	Ultra Librarian

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PCA9555

Expansor de E/S I2C/SMBus de 16 bits de 2,3 a 5,5 V con interrupción, pull-up débil y registros de c

Se encuentra disponible una versión más nueva de este producto

Reemplazo con funcionalidad mejorada del dispositivo comparado

PCA9555

Detalles del producto

Documentación técnica

Diseño y desarrollo

PCA9555 IBIS Model

I2C-DESIGNER — Herramienta de diseño I2C

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

TINA-TI — Programa de simulación analógica basado en SPICE

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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