TCA6408RGTR ,Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, Reset, and Config Register 16-QFN -40 to 85Features • Noise Filter on SCL/SDA Inputs• Latched Outputs With High-Current Drive1• Operating Powe ..
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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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TCA6408RGTR
Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, Reset, and Config Register 16-TSSOP -40 to 85
ZXY PACKAGE
(TOPVIEW)2345SCL
RGT PACKAGE
(TOPVIEW)ADDRV
CCI
CCP 1215 1356
RESET
PW PACKAGE
(TOPVIEW)VCCI
VCCP
INT
Pad
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Community Latched With High-Current Drive Operating Power-Supply Voltage Rangeof 1.65V
Maximumfor Directly Driving LEDsto 5.5V Latch-Up Exceeds 100 mA Per• Allows Bidirectional Voltage-Level Translation and
JESD 78,IIGPIO Expansion Between ESD Protection Exceeds JESD22– 1.8-V SCL/SDA and 1.8-V, 2.5-V,
3.3-V,or 5-VP Port – 2000-V Model (A114-A) 2.5-V SCL/SDA and 1.8-V, 2.5-V, – 200-V Model (A115-A)
3.3-V,or 5-VP Port – 1000-V 3.3-V SCL/SDA and 1.8-V, 2.5-V,
3.3-V,or 5-VP Port
2 DescriptionThis 8-bit I/O expander for the two-line bidirectional– 5-V SCL/SDA and 1.8-V, 2.5-V,
bus(I2C)is designed to provide general-purpose3.3-V,or 5-VP Port remote I/O expansion for most microcontroller•I2Cto Parallel Port Expander families via theI2C interface [serial clock (SCL) and• Low Standby Current Consumptionof1 μA serial data (SDA)]. Schmitt-Trigger Action Allows Slow Input The major benefitof this deviceisits wide VCC range.Transition and Better Switching Noise Immunityat It can operate from 1.65-Vto 5.5-Von the P-port sidethe SCL and SDA Inputs and on the SDA/SCL side. This allows the TCA6408 interface with next-generation microprocessors and– Vhys= 0.18V Typat 1.8V
microcontrollers on the SDA/SCL side, where supply– Vhys= 0.25V Typat 2.5V levels are dropping down to conserve power. In– Vhys= 0.33V Typat 3.3V contrast to the dropping power supplies of Vhys= 0.5V Typat5V microprocessors and microcontrollers, some PCB
components such as LEDs remainata 5-V power• 5-V Tolerant I/O Ports supply.• Active-Low Reset (RESET) Input Open-Drain Active-Low Interrupt (INT) Output
Device Information(1) 400-kHz FastI2C Bus• Input/Output Configuration Register• Polarity Inversion Register• Internal Power-On Reset
(1) Forall available packages, see the orderable addendumat• Power Up WithAll Channels Configuredas Inputs
the endofthe datasheet.• No Glitch On Power Up
