TCA9535 Series

16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

Catalog

16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

Part	Features	Mounting Type	Number of I/O	Supplier Device Package	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output Source/Sink [custom]	Current - Output Source/Sink [custom]	Interface	Voltage - Supply [Max]	Voltage - Supply [Min]	Output Type	Clock Frequency	Package / Case
Texas Instruments TCA9535MRGER	POR	Surface Mount	16	24-VQFN (4x4)	24-VFQFN Exposed Pad	85 °C	-40 °C	10 mA	25 mA	I2C SMBus	5.5 V	1.65 V	Push-Pull	400 kHz
Texas Instruments TCA9535DBR	POR	Surface Mount	16	24-SSOP	24-SSOP	85 °C	-40 °C	10 mA	25 mA	I2C SMBus	5.5 V	1.65 V	Push-Pull	400 kHz
Texas Instruments TCA9535RTWR	POR	Surface Mount	16	24-WQFN (4x4)	24-WFQFN Exposed Pad	85 °C	-40 °C	10 mA	25 mA	I2C SMBus	5.5 V	1.65 V	Push-Pull	400 kHz
Texas Instruments TCA9535DBT	POR	Surface Mount	16	24-SSOP	24-SSOP	85 °C	-40 °C	10 mA	25 mA	I2C SMBus	5.5 V	1.65 V	Push-Pull	400 kHz
Texas Instruments TCA9535RGER	POR	Surface Mount	16	24-VQFN (4x4)	24-VFQFN Exposed Pad	85 °C	-40 °C	10 mA	25 mA	I2C SMBus	5.5 V	1.65 V	Push-Pull	400 kHz
Texas Instruments TCA9535PWR	POR	Surface Mount	16	24-TSSOP	24-TSSOP	85 °C	-40 °C	10 mA	25 mA	I2C SMBus	5.5 V	1.65 V	Push-Pull	400 kHz	0.173 in 4.4 mm

Catalog

16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

Key Features

• I2C to Parallel port expanderWide power supply voltage range of 1.65 V to 5 VLow standby-current consumptionOpen-drain active-low interrupt output5-V tolerant I/O ports400-kHz Fast I2C busPolarity inversion registerAddress by three hardware address pins for use of up to eight devicesLatched outputs with high-current drive capability for directly driving LEDsLatch-up performance exceeds 100 mA per JESD 78, class IIESD protection exceeds JESD 222000-V Human-Body Model (A114-A)1000-V Charged-Device Model (C101)I2C to Parallel port expanderWide power supply voltage range of 1.65 V to 5 VLow standby-current consumptionOpen-drain active-low interrupt output5-V tolerant I/O ports400-kHz Fast I2C busPolarity inversion registerAddress by three hardware address pins for use of up to eight devicesLatched outputs with high-current drive capability for directly driving LEDsLatch-up performance exceeds 100 mA per JESD 78, class IIESD protection exceeds JESD 222000-V Human-Body Model (A114-A)1000-V Charged-Device Model (C101)

Description

The TCA9535 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus or (SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V. The TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The TCA9535 is identical to theTCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pull-downs on unused I/O pins when configured as an input and undriven. The TCA9535 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus or (SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V. The TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The TCA9535 is identical to theTCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pull-downs on unused I/O pins when configured as an input and undriven.