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TCA6408PW

  

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Texas-Instruments
Texas Instruments
TCA6408PW Low-Voltage 8-BIT I2C and SMBus I/O Expander With Interrupt Output, Reset, and Configuration Registers

Description
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].
The major benefit of this device is its wide VCC range. It can operate from 1.65-V to 5.5-V on the P-port side and on the SDA/SCL side. This allows the TCA6408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components such as LEDs remain at a 5-V power supply.

Features
• Operating Power-Supply Voltage Range of 1.65 V
   to 5.5 V
• Allows Bidirectional Voltage-Level Translation and
   GPIO Expansion Between
   – 1.8-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 2.5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 3.3-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
• I2C to Parallel Port Expander
• Low Standby Current Consumption of 1 μA
• Schmitt-Trigger Action Allows Slow Input
   Transition and Better Switching Noise Immunity at
   the SCL and SDA Inputs
   – Vhys = 0.18 V Typ at 1.8 V
   – Vhys = 0.25 V Typ at 2.5 V
   – Vhys = 0.33 V Typ at 3.3 V
   – Vhys = 0.5 V Typ at 5 V
• 5-V Tolerant I/O Ports
• Active-Low Reset (RESET) Input
• Open-Drain Active-Low Interrupt (INT) Output
• 400-kHz Fast I2C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• Power Up With All Channels Configured as Inputs
• No Glitch On Power Up
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
   Maximum Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
• ESD Protection Exceeds JESD 22
   – 2000-V Human-Body Model (A114-A)
   – 200-V Machine Model (A115-A)
   – 1000-V Charged-Device Model (C101)


other parts : TCA6408  TCA6408RGT  TCA6408ZXY  
TCA6408PW PDF
TI
Texas Instruments
TCA6408PW LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

DESCRIPTION/ORDERING INFORMATION
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].
The major benefit of this device is its wide VCC range. It can operate from 1.65-V to 5.5-V on the P port side and on the SDA/SCL side. This allows the TCA6408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components such as LEDs remain at a 5-V power supply.
The bidirectional voltage level translation in the TCA6408 is provided through VCCI. VCCI should be connected to the VCC of the external SCL/SDA lines. This indicates the VCC level of the I2C bus to the TCA6408. The voltage level on the P port of the TCA6408 is determined by VCCP.
The TCA6408 consists of one 8-bit configuration (input or output selection), input, output, and polarity inversion (active high) register. 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.

FEATURES
• Operating Power-Supply Voltage Range of
   1.65 V to 5.5 V
• Allows Bidirectional Voltage-Level Translation
   and GPIO Expansion Between
   – 1.8-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 2.5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 3.3-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
• I2C to Parallel Port Expander
• Low Standby Current Consumption of 1 µA
• Schmitt-Trigger Action Allows Slow Input
   Transition and Better Switching Noise
   Immunity at the SCL and SDA Inputs
   – Vhys = 0.18 V Typ at 1.8 V
   – Vhys = 0.25 V Typ at 2.5 V
   – Vhys = 0.33 V Typ at 3.3 V
   – Vhys = 0.5 V Typ at 5 V
• 5-V Tolerant I/O Ports
• Active-Low Reset Input (RESET)
• Open-Drain Active-Low Interrupt Output (INT)
• 400-kHz Fast I2C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• Power-Up With All Channels Configured as
   Inputs
• No Glitch On Power-Up
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
   Maximum Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
• ESD Protection Exceeds JESD 22
   – 2000-V Human-Body Model (A114-A)
   – 200-V Machine Model (A115-A)
   – 1000-V Charged-Device Model (C101)


other parts : PH408  TCA6408  TCA6408PWG4  TCA6408PWR  TCA6408PWRG4  TCA6408RGTR  TCA6408RGT  TCA6408RGTRG4  TCA6408ZXYR  TCA6408ZXY  
TCA6408PW PDF
TI
Texas Instruments
TCA6408PWR LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

DESCRIPTION/ORDERING INFORMATION
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].
The major benefit of this device is its wide VCC range. It can operate from 1.65-V to 5.5-V on the P port side and on the SDA/SCL side. This allows the TCA6408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components such as LEDs remain at a 5-V power supply.
The bidirectional voltage level translation in the TCA6408 is provided through VCCI. VCCI should be connected to the VCC of the external SCL/SDA lines. This indicates the VCC level of the I2C bus to the TCA6408. The voltage level on the P port of the TCA6408 is determined by VCCP.
The TCA6408 consists of one 8-bit configuration (input or output selection), input, output, and polarity inversion (active high) register. 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.

FEATURES
• Operating Power-Supply Voltage Range of
   1.65 V to 5.5 V
• Allows Bidirectional Voltage-Level Translation
   and GPIO Expansion Between
   – 1.8-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 2.5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 3.3-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
• I2C to Parallel Port Expander
• Low Standby Current Consumption of 1 µA
• Schmitt-Trigger Action Allows Slow Input
   Transition and Better Switching Noise
   Immunity at the SCL and SDA Inputs
   – Vhys = 0.18 V Typ at 1.8 V
   – Vhys = 0.25 V Typ at 2.5 V
   – Vhys = 0.33 V Typ at 3.3 V
   – Vhys = 0.5 V Typ at 5 V
• 5-V Tolerant I/O Ports
• Active-Low Reset Input (RESET)
• Open-Drain Active-Low Interrupt Output (INT)
• 400-kHz Fast I2C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• Power-Up With All Channels Configured as
   Inputs
• No Glitch On Power-Up
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
   Maximum Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
• ESD Protection Exceeds JESD 22
   – 2000-V Human-Body Model (A114-A)
   – 200-V Machine Model (A115-A)
   – 1000-V Charged-Device Model (C101)


other parts : PH408  TCA6408  TCA6408PW  TCA6408PWG4  TCA6408PWRG4  TCA6408RGTR  TCA6408RGT  TCA6408RGTRG4  TCA6408ZXYR  TCA6408ZXY  
TCA6408PWR PDF
TI
Texas Instruments
TCA6408PWG4 LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

DESCRIPTION/ORDERING INFORMATION
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].
The major benefit of this device is its wide VCC range. It can operate from 1.65-V to 5.5-V on the P port side and on the SDA/SCL side. This allows the TCA6408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components such as LEDs remain at a 5-V power supply.
The bidirectional voltage level translation in the TCA6408 is provided through VCCI. VCCI should be connected to the VCC of the external SCL/SDA lines. This indicates the VCC level of the I2C bus to the TCA6408. The voltage level on the P port of the TCA6408 is determined by VCCP.
The TCA6408 consists of one 8-bit configuration (input or output selection), input, output, and polarity inversion (active high) register. 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.

FEATURES
• Operating Power-Supply Voltage Range of
   1.65 V to 5.5 V
• Allows Bidirectional Voltage-Level Translation
   and GPIO Expansion Between
   – 1.8-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 2.5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 3.3-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
• I2C to Parallel Port Expander
• Low Standby Current Consumption of 1 µA
• Schmitt-Trigger Action Allows Slow Input
   Transition and Better Switching Noise
   Immunity at the SCL and SDA Inputs
   – Vhys = 0.18 V Typ at 1.8 V
   – Vhys = 0.25 V Typ at 2.5 V
   – Vhys = 0.33 V Typ at 3.3 V
   – Vhys = 0.5 V Typ at 5 V
• 5-V Tolerant I/O Ports
• Active-Low Reset Input (RESET)
• Open-Drain Active-Low Interrupt Output (INT)
• 400-kHz Fast I2C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• Power-Up With All Channels Configured as
   Inputs
• No Glitch On Power-Up
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
   Maximum Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
• ESD Protection Exceeds JESD 22
   – 2000-V Human-Body Model (A114-A)
   – 200-V Machine Model (A115-A)
   – 1000-V Charged-Device Model (C101)


other parts : PH408  TCA6408  TCA6408PW  TCA6408PWR  TCA6408PWRG4  TCA6408RGTR  TCA6408RGT  TCA6408RGTRG4  TCA6408ZXYR  TCA6408ZXY  
TCA6408PWG4 PDF
TI
Texas Instruments
TCA6408PWRG4 LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

DESCRIPTION/ORDERING INFORMATION
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].
The major benefit of this device is its wide VCC range. It can operate from 1.65-V to 5.5-V on the P port side and on the SDA/SCL side. This allows the TCA6408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components such as LEDs remain at a 5-V power supply.
The bidirectional voltage level translation in the TCA6408 is provided through VCCI. VCCI should be connected to the VCC of the external SCL/SDA lines. This indicates the VCC level of the I2C bus to the TCA6408. The voltage level on the P port of the TCA6408 is determined by VCCP.
The TCA6408 consists of one 8-bit configuration (input or output selection), input, output, and polarity inversion (active high) register. 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.

FEATURES
• Operating Power-Supply Voltage Range of
   1.65 V to 5.5 V
• Allows Bidirectional Voltage-Level Translation
   and GPIO Expansion Between
   – 1.8-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 2.5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 3.3-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
   – 5-V SCL/SDA and 1.8-V, 2.5-V,
      3.3-V, or 5-V P Port
• I2C to Parallel Port Expander
• Low Standby Current Consumption of 1 µA
• Schmitt-Trigger Action Allows Slow Input
   Transition and Better Switching Noise
   Immunity at the SCL and SDA Inputs
   – Vhys = 0.18 V Typ at 1.8 V
   – Vhys = 0.25 V Typ at 2.5 V
   – Vhys = 0.33 V Typ at 3.3 V
   – Vhys = 0.5 V Typ at 5 V
• 5-V Tolerant I/O Ports
• Active-Low Reset Input (RESET)
• Open-Drain Active-Low Interrupt Output (INT)
• 400-kHz Fast I2C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• Power-Up With All Channels Configured as
   Inputs
• No Glitch On Power-Up
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
   Maximum Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
• ESD Protection Exceeds JESD 22
   – 2000-V Human-Body Model (A114-A)
   – 200-V Machine Model (A115-A)
   – 1000-V Charged-Device Model (C101)


other parts : PH408  TCA6408  TCA6408PW  TCA6408PWG4  TCA6408PWR  TCA6408RGTR  TCA6408RGT  TCA6408RGTRG4  TCA6408ZXYR  TCA6408ZXY  
TCA6408PWRG4 PDF

1

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