TCA6424ARGJR ,Low-Voltage 24-Bit I2C and SMBus I/O Expander 32-UQFN -40 to 85Features 2 DescriptionThis 24-bit I/O expander for the two-line bidirectional1• Operating Power-Sup ..
TCA6424RGJR ,Low-Voltage 24 Bit I2C and SMBus I/O Expander With Interrupt Output Reset and Config Registers 32-UQFN -40 to 85Features 2 DescriptionThis 24-bit I/O expander for the two-line bidirectional1• Operating Power-Sup ..
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TCA6424ARGJR
Low-Voltage 24-Bit I2C and SMBus I/O Expander
ADDR
P22P23P24P25P26P27
RESET
P00P01P02P03P04P05P06P07CCI
GND CCP
SDA
P16
P15
P14
P13
P10
P11
P12
SCL234567824232219
Exposed
Center Pad
TCA6424A Low-Voltage 24-BitI2C and SMBus I/O Expander
With Interrupt Output, Reset, and Configuration Registers Features 2 DescriptionThis expander for the two-line bidirectional Operating Power-Supply Voltage Rangeof 1.65V bus to provide general-purposeto 5.5V remote for most microcontroller• Allows Bidirectional Voltage-Level Translation and familiesI2C interface [serial clock (SCL) andGPIO Expansion Between: serial 1.8-V SCL/SDA and Theof this deviceisits wide VCC range.1.8-V, 2.5-V, 3.3-V,or 5-VP Port It can operate from 1.65Vto 5.5Von the P-port side 2.5-V SCL/SDA and andon the SDA/SCL side. This allows the TCA6424A interface with next-generation microprocessors and1.8-V, 2.5-V, 3.3-V,or 5-VP Port
microcontrollers on the SDA/SCL side, where supply– 3.3-V SCL/SDA and1.8-V, 2.5-V, 3.3-V,or 5-VP Port– 5-V SCL/SDA and1.8-V, 2.5-V, 3.3-V,or 5-VP Port•I2Cto Parallel Port Expander Low Standby Current Consumptionof1 μA Schmitt-Trigger Action Allows Slow InputTransition and Better Switching Noise Immunityatthe SCL and SDA Inputs
(1) Forall available packages, see the orderable addendumat– Vhys= 0.18V Typat 1.8V the endofthe datasheet.– Vhys= 0.25V Typat 2.5V Vhys= 0.33V Typat 3.3V
RGJ/RSM PACKAGE
(BOTTOM VIEW)– Vhys= 0.5V Typat5V 5-V Tolerant I/O Ports Active-Low Reset Input (RESET) Open-Drain Active-Low Interrupt Output (INT) 400-kHz FastI2C Bus Input/Output Configuration Register Polarity Inversion Register Internal Power-On Reset Power Up WithAll Channels Configuredas Inputs No Glitch On Power Up Noise Filteron SCL/SDA Inputs With High-Current Drivefor Directly Driving LEDs used,the exposed center pad must Exceeds 100 mA Per connectedasa secondary groundorleft electrically open.
