概览
描述
The SLG4KPDSC-DMO is a keypad scanner demonstration board.
Using a microcontroller (MCU) or system-on-chip (SoC) to scan a keypad is a less than ideal solution for human input. It often makes sense to offload keypad scanning to a dedicated IC to reduce the power and I/O burden on larger, less efficient, and more expensive devices. Using a GreenPAK™ programmable mixed-signal matrix IC as a keypad scanner provides a flexible, reliable solution that won't kill your power budget or your BOM cost. While GreenPAK with I2C can perform this function, using GreenPAK's asynchronous state machine (ASM) unlocks the full potential and enables up to 54 key scanning.
特性
- GreenPAK Offers Lots of Flexibility
- Integrated delays for programmable button debounce
- ASM that can quickly and reliably scan up to 54 buttons in a 20-pin device
- VDD that is 1.8V to 5.0V
- Flexible GPIO routing, ensuring the least complexity in printed circuit board (PCB) routing
- GreenPAK Lowers Power Consumption
- Being low power allows it to operate continuously without ruining the power budget while the main MCU or SoC is in standby
- GreenPAK Enhances System Stability
- Zero code while implementing features in hardware ensures stability
- Integration of many components ensures fewer points of failure
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