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PCF8575

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16-Bit-I2C/SMBus-E/A-Expander mit Unterbrechung, 2,5 bis 5,5

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Datenblatt

PCF8575

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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) VQFN (RGE) 24 16 mm² (4 mm × 4 mm) SOIC (DW) 24 159.65 mm² (15.5 mm × 10.3 mm) TVSOP (DGV) 24 32 mm² (5 mm × 6.4 mm) SSOP (DBQ) 24 51.9 mm² (8.65 mm × 6 mm) SSOP (DB) 24 63.96 mm² (8.2 mm × 7.8 mm)
  • I2C to parallel-port expander
  • Open-drain interrupt output
  • Low standby-current consumption of 10µA maximum
  • Compatible with most microcontrollers
  • 400kHz 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
  • Current source to VCC for actively driving a high at the output
  • Latch-up performance exceeds 100mA Per JESD 78, class II
  • ESD Protection exceeds JESD 22
    • 2000V Human-body model
    • 200V Machine model
    • 1000V Charged-device model
  • I2C to parallel-port expander
  • Open-drain interrupt output
  • Low standby-current consumption of 10µA maximum
  • Compatible with most microcontrollers
  • 400kHz 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
  • Current source to VCC for actively driving a high at the output
  • Latch-up performance exceeds 100mA Per JESD 78, class II
  • ESD Protection exceeds JESD 22
    • 2000V Human-body model
    • 200V Machine model
    • 1000V Charged-device model

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5V to 5.5V VCC operation.

The PCF8575 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), 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 high. In this mode, only a current source to VCC is active.

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5V to 5.5V VCC operation.

The PCF8575 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), 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 high. In this mode, only a current source to VCC is active.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt PCF8575 Remote16-BIT I2 C AND SMBus I/O Expander with Interrupt Output datasheet (Rev. I) PDF | HTML 22.08.2024
Anwendungshinweis Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03.07.2024
Anwendungshinweis I2C Dynamic Addressing 25.04.2019
Anwendungshinweis Choosing the Correct I2C Device for New Designs PDF | HTML 07.09.2016
Anwendungshinweis Understanding the I2C Bus PDF | HTML 30.06.2015
Anwendungshinweis Maximum Clock Frequency of I2C Bus Using Repeaters 15.05.2015
Anwendungshinweis I2C Bus Pull-Up Resistor Calculation PDF | HTML 13.02.2015

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Simulationsmodell

PCF8575 IBIS Model

SCPM003.ZIP (60 KB) - IBIS-Modell
Unterstützte Produkte und Hardware
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
TSSOP (PW) 24 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian
SOIC (DW) 24 Ultra Librarian
TVSOP (DGV) 24 Ultra Librarian
SSOP (DBQ) 24 Ultra Librarian
SSOP (DB) 24 Ultra Librarian
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