PCA9557DR ,Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-SOIC -40 to 85Block Diagram... 122 Description....... 18.2 Device Functional Modes.... 143 Revision History...... ..
PCA9557PW ,8-bit I2C-bus and SMBus I/O port with resetSample & Support &Product Tools &TechnicalCommunityBuyFolder Documents SoftwarePCA9557SCPS133J–DECE ..
PCA9557PWR ,Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TSSOP -40 to 85Electrical Characteristics....... 5211 Device and Documentation Support........ 236.5 I C Interface ..
PCA9557PWRG4 ,Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TSSOP -40 to 85 SCPS133J–DECEMBER 2005–REVISED JUNE 20144 Description (Continued)The system master can reset the P ..
PCA9557PWT ,Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TSSOP -40 to 85Features... 1 8 Detailed Description........ 128.1 Functional
PCA9557PWTG4 , REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH RESET AND CONFIGURATION REGISTERS
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PF0560.104NLT , SMT POWER INDUCTORS
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PCA9557DB-PCA9557DBR-PCA9557DGVR-PCA9557DR-PCA9557PW-PCA9557PWR-PCA9557PWRG4-PCA9557PWT-PCA9557RGVR-PCA9557RGYR
8-bit I2C-bus and SMBus I/O port with reset
RGV PACKAGE
(TOP VIEW)67141516
SCLSD
RESET
GND
D, DB, DGV, OR PW PACKAGE
(TOP VIEW)1
SCL
SDA
VCC
RESET
RGY PACKAGE
(TOP VIEW) 101612
SDA
SCL V 8 9
RESET
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PCA9557 bus (IC) is designed for 2.3-V to 5.5-V VCC•I2Cto Parallel Port Expander operation. The device provides general-purpose• Operating Power-Supply Voltage Rangeof 2.3V remote I/O expansion for most microcontroller 5.5V families via theI2C interface [serial clock (SCL) and (SDA)].• 5-V Tolerant I/O Ports 400-kHz FastI2C Bus consists of one 8-bit configuration output selection), input port, output port, and• Three Hardware Address Pins Allow for Useofup inversion (active-high) registers.At power on,to Eight DevicesonI2 C/SMBus are configured as inputs. However, the• Lower-Voltage Higher-Performance Migration can enable the I/Osas either inputsorPath for PCA9556 by writingto the I/O configuration bits. The
data for each input or output is kept in the• Input/Output Configuration Register
corresponding inputor output register. The polarityof• Polarity Inversion Register the input port register canbe inverted with the polarity• Active-Low Reset Input register. All registers can be read by the Internal Power-On Reset High-Impedance Open Drainon P0 outputs (latched) have high-current drive Power Up WithAll Channels Configuredas Inputs for directly driving LEDs. The device has consumption.• No Glitchon Power Up Noise Filteron SCL/SDA Inputs
Device Information(1) Latched Outputs With High Current DriveMaximum Capabilityfor Directly Driving LEDs• Latch-Up Performance Exceeds 100 mA PerJESD 78, ClassII available packages, see the orderable addendumat• ESD Protection Exceeds JESD22ofthe datasheet. 2000-V Human-Body Model (A114-A) 200-V Machine Model (A115-A) 1000-V Charged-Device Model (C101)
