The CY8C4A45 PSoC analog co-processor is a programmable system-on-chip that can simplify the design of next-generation industrial, home appliance, automotive, and consumer systems that require multiple sensor inputs. This chip has one universal analog block (UAB) configurable as a programmable analog filter or a 14-bit delta-sigma A/D or a 12-bit D/A converter, a 1 Ms/s SAR A/D, a 10-bit single-slope A/D, and a 48-MHZ Cortex-M0+ CPU for signal processing.
The free PSoC Creator IDE eases system design by enabling concurrent hardware and firmware development using programmable hardware components. Engineers can configure the programmable analog blocks in the PSoC by dragging and dropping components on the Creator schematic and customizing them with component configuration tools. The components offer fully engineered embedded initialization, calibration, and temperature correction algorithms.
The chip's processor has 32 Kbytes of flash and 4 Kbytes of RAM. The device includes an analog filter, CapSense touch-sensing user interface, four op-amps, two low-power comparators, and a flexible 38-channel analog mux to create custom analog front ends.
It also offers two 7-bit current DACs for general-purpose or capacitive sensing applications on any pin. The IC has LCD segment drive and has eight 16-bit timer/counter/PWM blocks with a programmable counter, a count capture register, a compare register that is used to either stop or auto-reload the counter when its count is matched, and compare registers that are used as PWM duty cycle outputs, along with three independent communication blocks.
The IC will run on 1.7 to 5.5 V and take 2 to 10 mA, depending on speed settings. Deep sleep mode uses only 2.5 µa. The analog coprocessor is available in a 3.7- by 2.0-mm chip-scale package option, along with TSSOP28, QFN48, and TQFP48 packages. Samples available now. A development kit is available for $49.
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