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TCA9535PWR Fiches technique(PDF) 1 Page - Texas Instruments |
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TCA9535PWR Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 32 page 1 FEATURES A0 P17 P16 P15 P14 P13 24 22 21 20 19 23 7 9 10 11 12 8 P00 P01 P02 P03 P04 P05 1 2 3 4 5 6 18 17 16 15 14 13 Exposed Center Pad INT A1 A2 P00 P01 P02 P03 P04 P05 P06 P07 GND V CC SDA SCL A0 P17 P16 P15 P14 P13 P12 P11 P10 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 DESCRIPTION/ORDERING INFORMATION TCA9535 www.ti.com........................................................................................................................................... SCPS201A – AUGUST 2009 – REVISED SEPTEMBER 2009 LOW VOLTAGE 16-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS • Address by Three Hardware Address Pins for Use of up to Eight Devices • Low Standby-Current Consumption of 3 µA Max • Latched Outputs With High-Current Drive Capability for Directly Driving LEDs • I2C to Parallel Port Expander • Latch-Up Performance Exceeds 100 mA Per • Open-Drain Active-Low Interrupt Output JESD 78, Class II • 5-V Tolerant I/O Ports • ESD Protection Exceeds JESD 22 • Compatible With Most Microcontrollers – 2000-V Human-Body Model (A114-A) • 400-kHz Fast I2C Bus – 1000-V Charged-Device Model (C101) • Polarity Inversion Register PW PACKAGE RTW PACKAGE (TOP VIEW) (TOP VIEW) The exposed center pad, if used, must be connected as a secondary ground or left electrically open. This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 1.65-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. The TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output Port register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master. The system master can reset the TCA9535 in the event of a timeout or other improper operation by utilizing the power-on reset feature, which puts the registers in their default state and initializes the I2C/SMBus state machine. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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