22 I/O MSDI Programmable Current Analog Mux
Design Files
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33-Channel Multiple Switch Detection Interface with Programmable Current
The CD1030 is a multiple switch detection interface (MSDI) designed to detect the closing and opening of up to 33 switch contacts. The switch status, either open or closed, is transferred to the microprocessor through a SPI in automotive environments.
- This SMARTMOS® device features a 35-to-1 analog multiplexer for reading analog inputs.
- The analog input signal is buffered and provided on the analog multiplexer (AMUX) output pin for the MCU to read
- Individually selectable input currents are available in Normal and Low-Power Mode
- Battery and temperature monitor are included in the IC and available via the AMUX pin
- Interfaces with any MCU that supports SPI communications
Product Details
Features
Key Features
- Fully functional operation 4.5V ≤ VBATP ≤ 36V
- Full parametric operation 6.0V ≤ VBATP ≤ 28V
- Operating switch input voltage range from -1.0V to 36V
- 12 programmable inputs (switches to battery or ground)
- 21 switch-to-ground inputs
- Selectable wetting current (2.0, 6.0, 8.0, 10, 12, 14, 16, or 20mA)
- Interfaces directly to an MCU using 3.3V/5.0V SPI protocol
- Selectable wake-up on change of state
- Typical standby current IBATP = 50uA and IDDQ = 10uA
- Active interrupt (INT_B) on switch state change
- Integrated battery and temperature sensing
- Switch monitoring device function
- Package termination count: 48
- Package type HLQFP48
- Ambient operating temperature -40 to 125 °C
Product Longevity Program
- This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The The CD1030 is included in the 15-year program
Part numbers include: MC33CD1030AE.
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Documentation
Quick reference to our documentation types.
1-5 of 6 documents
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Application Note
AN4388: Quad Flat Package (QFP) – Application Note
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Fact Sheet
Multiple Switch Detection Interface (MSDI)
Design Resources
Hardware
Quick reference to our
board types.
5 hardware offerings
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Complete SolutionMPC5775B BMS and VCU Reference Design
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Embedded Board SolutionsEmbedded SW: Multiple Switch Detection Interface Software Driver
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Evaluation and Development BoardsFRDM-CD1030EVM Switch Detection Interface Evaluation Kit
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Evaluation and Development BoardsS32K344-WB Evaluation Board for Automotive General Purpose
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
2 engineering services
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Independent Design House (IDH)
Hardware Design Services
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Independent Design House (IDH)
Embedded Software Design
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