CD1020 Overview
The CD1020 is a cost-optimized switch detection interface device (MSDI) designed to detect the closing and opening of up to 22 switch contacts. The switch status, either open or closed, is transferred to the microprocessor unit (MCU) through a Serial Peripheral Interface (SPI). This SMARTMOS device also.
CD1020 Key Features
- Fully functional operation from 6.0 V to 36 V
- Full parametric operation from 6.0 V to 28 V
- Low-power mode current IBATP = 30 μA and IDDQ = 10 μA
- 22 Switch detection channels
- 14 Switch-to-Ground (SG) inputs
- Eight Programmable switch (SP) inputs
- Switch-to-Ground (SG) or Switch-to-Battery (SB)
- Operating switch input voltage range from -1.0 V to 36 V
- Selectable wetting current (2, 8, 12, 16 mA)
- Programmable wetting operation (pulse or continuous)