PCA9557PWR - TI

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

Part No

PCA9557PWR
Manufacturer

TI
ChipWorker Part#

CW2677840
Category

Interface IC, Interface Controller
Package

TSSOP-16
Description

TEXAS INSTRUMENTS PCA9557PWR I/O Expander, 8Bit, 400kHz, I2C, SMBus, 2.3V, 5.5V, TSSOP
Documentation

Datasheet

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PCA9557PWR Specifications

Attribute	Attribute Value

Part Number	PCA9557PWR
Manufacturer	TI
ChipWorker Part#	CW2677840
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	TSSOP-16
Frequency	400 KHz
Supply Voltage (DC)	2.30V ~ 5.50V
Number of Outputs	8 Output
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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Weight	0.0009901922092 kg
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
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 PCA9557PWR is a remote 8-bit I²C and SMBus low-power I/O Expander with reset and configuration registers designed for VCC operation. The device provides general-purpose remote I/O expansion for most microcontroller families via the I²C interface (serial clock (SCL) and serial data (SDA)). The PCA9557 consists of one 8-bit configuration (input or output selection), input port, output port and polarity inversion (active-high) registers. At power on, the I/Os are configured as inputs. 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.
1µA Maximum low standby-current consumption
I²C to parallel port expander
Three hardware address pins allow up to eight devices
Lower-voltage higher-performance migration path
Input/output configuration register
Polarity inversion register
Active-low reset input
Internal power-on reset
High-impedance open drain on P0
Power up with all channels configured as inputs
Green product and no Sb/Br
This device has limited built-in ESD protection, 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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