PCA9536

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9536 SCPS125G – APRIL 2006 – REVISED JUNE 2014 PCA9536 Remote 4-Bit I2C and SMBus I/O Expander With Configuration Registers 1 Features 1 Available in the Texas Instruments NanoFree™ Package Low Standby Current Consumption of 1 μA Max I2C to Parallel Port Expander Operating Power-Supply Voltage Range of 2.3 V to 5.5 V 5-V Tolerant I/O Ports 400-kHz Fast I2C Bus Input/Output Configuration Register Polarity Inversion Register Internal Power-On Reset No Glitch on Power Up Power-Up With All Channels Configured as Inputs Noise Filter on SCL/SDA Inputs Latched Outputs With High-Current Drive Maximum 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 (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) 2 Description This 4-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-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 PCA9536 features 4-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low) registers. At power on, the I/Os are configured as inputs with a weak pullup to VCC. However, the system master can enable the I/O...