PCF8575C Series
16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt
Manufacturer: Texas Instruments
Catalog
16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt
| Part | Supplier Device Package | Interface | Output Type | Current - Output Source/Sink | Voltage - Supply [Min] | Voltage - Supply [Max] | Features | Mounting Type | Interrupt Output | Package / Case | Operating Temperature [Max] | Operating Temperature [Min] | Number of I/O | Clock Frequency | Package / Case [custom] | Package / Case [y] | Package / Case [y] | Package / Case | Current - Output Source/Sink [custom] | Current - Output Source/Sink [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 24-SSOP | I2C SMBus | Push-Pull | 1 mA 25 mA | 2.5 V | 5.5 V | POR | Surface Mount | 24-SSOP | 85 °C | -40 °C | 16 | 400 kHz | |||||||
 Texas Instruments | 24-SSOP | I2C SMBus | Push-Pull | 1 mA 25 mA | 2.5 V | 5.5 V | POR | Surface Mount | 24-SSOP | 85 °C | -40 °C | 16 | 400 kHz | 0.154 " 3.9 mm | ||||||
 Texas Instruments | 24-TVSOP | I2C SMBus | Push-Pull | 1 mA 25 mA | 2.5 V | 5.5 V | POR | Surface Mount | 24-TFSOP | 85 °C | -40 °C | 16 | 400 kHz | 4.4 mm | 0.173 in | |||||
 Texas Instruments | 24-TSSOP | I2C SMBus | Open Drain | 4.5 V | 5.5 V | POR | Surface Mount | 24-TSSOP | 85 °C | -40 °C | 16 | 400 kHz | 0.173 in 4.4 mm | 10 mA | 25 mA | |||||
Texas Instruments | 24-SSOP | I2C SMBus | Open Drain | 4.5 V | 5.5 V | POR | Surface Mount | 24-SSOP | 85 °C | -40 °C | 16 | 400 kHz | 10 mA | 25 mA | ||||||
 Texas Instruments | 24-SSOP | I2C SMBus | Open Drain | 4.5 V | 5.5 V | POR | Surface Mount | 24-SSOP | 85 °C | -40 °C | 16 | 400 kHz | 10 mA | 25 mA | ||||||
Texas Instruments | 24-TSSOP | I2C SMBus | Push-Pull | 1 mA 25 mA | 2.5 V | 5.5 V | POR | Surface Mount | 24-TSSOP | 85 °C | -40 °C | 16 | 400 kHz | 0.173 in 4.4 mm | ||||||
 Texas Instruments | 24-TVSOP | I2C SMBus | Push-Pull | 1 mA 25 mA | 2.5 V | 5.5 V | POR | Surface Mount | 24-TFSOP | 85 °C | -40 °C | 16 | 400 kHz | 4.4 mm | 0.173 in | |||||
Texas Instruments | 24-TSSOP | I2C SMBus | Push-Pull | 4.5 V | 5.5 V | POR | Surface Mount | 24-TSSOP | 85 °C | -40 °C | 16 | 400 kHz | 0.173 in 4.4 mm | 10 mA | 25 mA | |||||
 Texas Instruments | 24-TVSOP | I2C SMBus | Open Drain | 4.5 V | 5.5 V | POR | Surface Mount | 24-TFSOP | 85 °C | -40 °C | 16 | 400 kHz | 4.4 mm | 0.173 in | 10 mA | 25 mA |
Key Features
• I2C to parallel-port expanderOpen-drain interrupt outputLow standby-current consumption of 10µA maximumCompatible with most microcontrollers400kHz Fast I2C busAddress by three hardware address pins for use of up to eight devicesLatched outputs with high-current drive capability for directly driving LEDsCurrent source to VCC for actively driving a high at the outputLatch-up performance exceeds 100mA Per JESD 78, class IIESD Protection exceeds JESD 222000V Human-body model200V Machine model1000V Charged-device modelI2C to parallel-port expanderOpen-drain interrupt outputLow standby-current consumption of 10µA maximumCompatible with most microcontrollers400kHz Fast I2C busAddress by three hardware address pins for use of up to eight devicesLatched outputs with high-current drive capability for directly driving LEDsCurrent source to VCC for actively driving a high at the outputLatch-up performance exceeds 100mA Per JESD 78, class IIESD Protection exceeds JESD 222000V Human-body model200V Machine model1000V Charged-device model
Description
AI
This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCCoperation.
The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).
The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are in 3-state mode. The strong pullup to VCCallows fast-rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. After power on, as all the I/Os are set to 3-state, all of them can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) flows to GND.
This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCCoperation.
The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).
The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are in 3-state mode. The strong pullup to VCCallows fast-rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. After power on, as all the I/Os are set to 3-state, all of them can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) flows to GND.