PCA9554DB - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

PCA9554DB
Manufacturer

TI
ChipWorker Part#

CW8597246
Category

Interface IC, Interface Controller
Package

SSOP-16
Description

TEXAS INSTRUMENTS PCA9554DB I/O Expander, 8Bit, 400kHz, I2C, SMBus, 2.3V, 5.5V, SSOP
Documentation

Datasheet

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PCA9554DB Specifications

Attribute	Attribute Value

Part Number	PCA9554DB
Manufacturer	TI
ChipWorker Part#	CW8597246
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SSOP-16
Supply Voltage (DC)	2.30V ~ 5.50V
Operating Voltage	5.50V (max)
Number of Outputs	8 Output
Supply Current	104 µA
Number of Positions	16 Position
Clock Speed	400 kHz
Voltage Nodes	2.70 V, 3.30 V, 3.60 V, 5.00 V
Number of Inputs and Outputs	8 Input IO
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	2.3V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	2.3 V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The PCA9554DB is an 8-bit I/O Expander for the two-line bidirectional bus (I²C) is designed for 2.3 to 5.5V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I²C interface [serial clock (SCL), serial data (SDA)]. The PCA9554 consists of one 8-bit configuration (input or output selection), input, output and polarity inversion (active high or active low) registers. At power on, the I/Os are configured as inputs with a weak pull-up to VCC. However, 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 PCA9554 in the event of a timeout or other improper operation by utilizing the power-on reset feature.
Open-drain active-low interrupt (INT)\ output
400kHz Fast I²C bus
Three hardware address pins allow up to eight devices on the I²C/SMBus
Input/output configuration register
Polarity inversion register
Power-up with all channels configured as inputs
Internal power-ON reset
No glitch on power-up
Latched outputs with high-current drive maximum capability for directly driving LEDs
Latch-up performance exceeds 100mA per JESD 78, class II
Green product and no Sb/Br
Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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