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PCF8575C Datasheet(PDF) 1 Page - Texas Instruments |
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PCF8575C Datasheet(HTML) 1 Page - Texas Instruments |
1 / 38 page PCF8575C I2C or SMBus Master (e.g. Processor) Peripheral Devices RESET, ENABLE, or control inputs INT or status outputs LEDs SDA SCL INT A0 A1 A2 GND VCC P00 P01 P02 P03 P04 P05 P06 P07 Peripheral Devices RESET, ENABLE, or control inputs INT or status outputs LEDs P10 P11 P12 P13 P14 P15 P16 P17 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCF8575C SCPS123F – MARCH 2005 – REVISED JANUARY 2015 PCF8575C Remote 16-Bit I2C AND SMBus Low-Power I/O Expander with Interrupt Output 1 Features 3 Description This 16-bit I/O expander for the two-line bidirectional 1 • I2C to Parallel-Port Expander bus (I2C) is designed for 4.5-V to 5.5-V VCC • Open-Drain Interrupt Output operation. • Low Standby-Current Consumption of The PCF8575C provides general-purpose remote I/O 10 μA Maximum expansion for most microcontroller families via the I2C • Compatible With Most Microcontrollers interface serial clock (SCL) and serial data (SDA). • 400-kHz Fast I2C Bus The device features a 16-bit quasi-bidirectional • Address by Three Hardware Address Pins for Use input/output (I/O) port (P07–P00, P17–P10), including of up to Eight Devices latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can • Latched Outputs With High-Current Drive be used as an input or output without the use of a Capability for Directly Driving LEDs data-direction control signal. At power on, the I/Os • Latch-Up Performance Exceeds 100 mA Per are in 3-state mode. The strong pullup to VCC allows JESD 78, Class II fast-rising edges into heavily loaded outputs. This • ESD Protection Exceeds JESD 22 device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os – 2000-V Human-Body Model should be high before being used as inputs. After – 200-V Machine Model power on, as all the I/Os are set to 3-state, all of them – 1000-V Charged-Device Model can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the 2 Applications write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current • Telecom Shelters: Filter Units (IOL) flows to GND. • Servers Device Information(1) • Routers (Telecom Switching Equipment) PART NUMBER PACKAGE (PIN) BODY SIZE • Personal Computers SSOP (24) 8.20 mm × 5.30 mm • Personal Electronics QSOP (24) 8.65 mm × 3.90 • Industrial Automation TVSOP (24) 5.00 mm × 4.50 mm • Products with GPIO-Limited Processors PCF8575C SOIC (24) 15.40 mm × 7.50 mm TSSOP (24) 7.80 mm × 4.40 mm QFN (24) 4.0 mm × 4.0 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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