MC34972 Datasheet - NXP

MC34972 Multiple Switch Detection Interface

of each pin can be found in the Functional Pin Description section beginning on page 9. Table 1. 34972 Pin Definitions Pin Number Pin Name Pin Function Formal Name Definition 1 GND Ground 2 SI Input 3 SCLK Input 4 CS Input Ground SPI Slave In Serial Clock Chip Select Ground for log.

MC34972 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. The 34972 device has two modes of operation, Normal and Sleep. Normal mode allows programming of the device and supplies switch contacts with pull-u

MC34972 Datasheet (1.75 MB)