PCF8575C

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Expansor de E/S I2C/SMBus de 16 bits de 4.5 a 5.5 V con interrupción

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document-pdfAcrobat PCF8575C Remote 16-Bit I2C AND SMBus Low-Power I/O Expander with Interrupt Output datasheet (Rev. F) (Inglés) PDF | HTML

PCF8575C

ACTIVO

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Detalles del producto

Number of I/Os

16

Features

Interrupt pin

Addresses

8

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

Number of I/Os

16

Features

Interrupt pin

Addresses

8

Rating

Catalog

Frequency (max) (MHz)

0.4

Operating temperature range (°C)

-40 to 85

TSSOP (PW)

24

49.92 mm² (7.8 mm × 6.4 mm)

SSOP (DB)

24

63.96 mm² (8.2 mm × 7.8 mm)

SOIC (DW)

24

159.65 mm² (15.5 mm × 10.3 mm)

SSOP (DBQ)

24

51.9 mm² (8.65 mm × 6 mm)

TVSOP (DGV)

24

32 mm² (5 mm × 6.4 mm)

VQFN (RGE)

24

16 mm² (4 mm × 4 mm)

I²C to Parallel-Port Expander
Open-Drain Interrupt Output
Low Standby-Current Consumption of
10 µA Maximum
Compatible With Most Microcontrollers
400-kHz Fast I²C Bus
Address by Three Hardware Address Pins
for Use of up to Eight Devices
Latched Outputs With High-Current Drive
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
- 200-V Machine Model
- 1000-V Charged-Device Model

I²C to Parallel-Port Expander
Open-Drain Interrupt Output
Low Standby-Current Consumption of
10 µA Maximum
Compatible With Most Microcontrollers
400-kHz Fast I²C Bus
Address by Three Hardware Address Pins
for Use of up to Eight Devices
Latched Outputs With High-Current Drive
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
- 200-V Machine Model
- 1000-V Charged-Device Model

This 16-bit I/O expander for the two-line bidirectional bus (I²C) is designed for 4.5-V to 5.5-V V_CC operation.

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 V_CC allows 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 (I_OL) 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 V_CC operation.

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 V_CC allows 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 (I_OL) flows to GND.

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Documentación principal	Tipo	Título	Opciones de formato	Descargar la versión más reciente en inglés	Fecha
*	Hoja de datos	PCF8575C Remote 16-Bit I2C AND SMBus Low-Power I/O Expander with Interrupt Output datasheet (Rev. F)	PDF \| HTML		25/01/2015

PCF8575C

Expansor de E/S I2C/SMBus de 16 bits de 4.5 a 5.5 V con interrupción

PCF8575C

Detalles del producto

Documentación técnica

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI