Integrated Circuits (ICs)

PCF8575DBR

Active

16-BIT 2.5- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsUnderstanding and Interpreting Standard-Logic Data Sheets (Rev. C)PCF8575 Remote16-BIT I2 C AND SMBus I/O Expander with Interrupt Output datasheet (Rev. I)+11

Integrated Circuits (ICs)

PCF8575DBR

Active

Texas Instruments

16-BIT 2.5- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT

Deep-Dive with AI

DocumentsUnderstanding and Interpreting Standard-Logic Data Sheets (Rev. C)PCF8575 Remote16-BIT I2 C AND SMBus I/O Expander with Interrupt Output datasheet (Rev. I)+11

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	PCF8575DBR

Clock Frequency	400 kHz
Current - Output Source/Sink	1 mA, 25 mA
Features	POR
Interface	I2C, SMBus
Interrupt Output	True
Mounting Type	Surface Mount
Number of I/O	16
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Push-Pull
Package / Case	24-SSOP
Supplier Device Package	24-SSOP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.5 V

PCF8575C Series

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	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 PCF8575DBR	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 PCF8575DBQR	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 PCF8575DGVR	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 PCF8575CPWR	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 PCF8575CDB	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 PCF8575CDBR	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 PCF8575PWRE4	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 PCF8575DGVRG4	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 PCF8575PW	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 PCF8575CDGVR	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

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.28
		10	$ 2.94
		25	$ 2.78
		100	$ 2.41
		250	$ 2.29
		500	$ 2.05
		1000	$ 1.73
	Digi-Reel®	1	$ 3.28
		10	$ 2.94
		25	$ 2.78
		100	$ 2.41
		250	$ 2.29
		500	$ 2.05
		1000	$ 1.73
	Tape & Reel (TR)	2000	$ 1.65
		6000	$ 1.58
Texas Instruments	LARGE T&R	1	$ 2.48
		100	$ 2.17
		250	$ 1.52
		1000	$ 1.23

Description

General part information

PCF8575C Series

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.