| Part Number | 33972A Datasheet |
|---|---|
| Manufacturer | Freescale Semiconductor |
| Overview | of each pin can be found in the Functional Pin Description section beginning on page 10. Pin Number 1 2 3 4 5–8 25 – 28 9 – 15, 18 – 24 16 17 29 30 31 32 Pin Name GND SI SCLK CS SP0 – 3 SP4 – 7 SG0 – . 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 33972 device has two modes of operation, Normal and Sleep. Normal mode allows programming of the device and supplies switch contacts with pullup. |
33972A Datasheet and Specifications PDF
The 33972A is a Multiple Switch Detection Interface.
Key Specifications
| Package | SSOP |
|---|---|
| Mount Type | Surface Mount |
| Pins | 32 |
| Operating Voltage | 3.3 V |
| Max Voltage (typical range) | 5.25 V |
| Min Voltage (typical range) | 3.1 V |
| Length | 11 mm |
| Width | 7.5 mm |
| Part Number | 33972A Datasheet |
|---|---|
| Description | Multiple Switch Detection Interface |
| Manufacturer | NXP Semiconductors |
| Overview | of each pin can be found in the Functional Pin Description section beginning on page 10. Pin Number Pin Name Pin Function Formal Name Definition 1 GND Ground 2 SI Input 3 SCLK Input 4 CS. 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 33972 device has two modes of operation, Normal and Sleep. Normal mode allows programming of the device and supplies switch contacts with pull-u. |