33993 Datasheet | Freescale Semiconductor

features a 22-to-1 analog multiplexer for reading inputs as analog. The analog input signal is buffered and provided on the AMUX output pin for the MCU to read. MULTIPLE SWITCH DETECTION INTERFACE The 33993 device has two modes of operation, Sleep and Normal. The Sleep mode provides low quiescent current and enables the wake-up features of the device. Normal mode allows programming of the device and supplies switch contacts with pull-up or pull-down current as it monitors switch change of state. The 33993 is packaged in the 32-pin wide-body SOIC, reducing circuit board area. Low quiescent current makes the 33993 ideal for automotive and industrial products requiring low sleep state currents. Features DW SUFFIX EW SUFFIX (PB-FREE) 98ARH99137A 32-PIN SOICW ORDERING INFORMATION - Designed to Operate 5.5 V ≤ VPWR ≤ 26 V - Switch Input Voltage Range -14 V to VPWR, 40 V Max - Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol - Selectable Wake-Up on Change of State Device MC33993DWB/R2 MCZ33993EW/R2 Temperature Range (TA) -40°C to 125°C Package 32 SOICW - Selectable Wetting Current (16 m A or 2.0 m A) - 8 Programmable Inputs (Switches to Battery or Ground) - 14 Switch-to-Ground Inputs - VPWR Standby Current 100 μA Typical, VDD Standby Current 20 μA Typical - Active Interrupt (INT) on Change-of-Switch State - Pb-Free Packaging Designated by Suffix Code EW VBAT VBAT VBAT SP0 SP1 VPWR SP7 SG0 SG1 WAKE SI SCLK CS SO INT AMUX Power Supply LVI Enable Watchdog...