LOW VOLTAGE 16-BIT I 2 C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 1.65-V to 5.5-V V CC operation. It provides general-purpose remote I/O expansion for most Microcontroller families via the I 2 C Interface [serial Clock (SCL), serial data (SDA)]. The TCA9555 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. The system master CAN reset the TCA9555 in the event of a timeout or other improper operation by utilizing the power-on reset feature, which puts the Registers in their default state and initializes the I 2 C SMBus state machine. The TCA9555 open-drain interrupt ( INT ) output is activated when any input state differs from its corresponding Input Port Register state and is used to indicate to the system master that an input state has changed. By Texas Instruments
Part Manufacturer Description Datasheet Samples
TCA9555DBT Texas Instruments 1.65 to 5.5V 16-Bit I2C and SMBus I/O Expander With Interrupt Output and Configuration Registers 24-SSOP -40 to 85
TCA9555PWR Texas Instruments 1.65 to 5.5V 16-Bit I2C and SMBus I/O Expander With Interrupt Output and Configuration Registers 24-TSSOP -40 to 85
TCA9555RTWR Texas Instruments 1.65 to 5.5V 16-Bit I2C and SMBus I/O Expander With Interrupt Output and Configuration Registers 24-WQFN -40 to 85
TCA9555RGER Texas Instruments 1.65 to 5.5V 16-Bit I2C and SMBus I/O Expander With Interrupt Output and Configuration Registers 24-VQFN -40 to 85
TCA9555DBR Texas Instruments 1.65 to 5.5V 16-Bit I2C and SMBus I/O Expander With Interrupt Output and Configuration Registers 24-SSOP -40 to 85
TCA9555 's PackagesTCA9555 's pdf datasheet
TCA9555PWR TSSOP
TCA9555RTWR QFN




TCA9555 Pinout, Pinouts
TCA9555 pinout,Pin out
This is one package pinout of TCA9555,If you need more pinouts please download TCA9555's pdf datasheet.

TCA9555 Application circuits
TCA9555 circuits
This is one application circuit of TCA9555,If you need more circuits,please download TCA9555's pdf datasheet.


Related Electronics Part Number

Related Keywords:

TCA9555 Pb-Free TCA9555 Cross Reference TCA9555 Schematic TCA9555 Distributor
TCA9555 Application Notes TCA9555 RoHS TCA9555 Circuits TCA9555 footprint
Hot categories