The MAXQ7666 smart systems-on-a-chip (SoC) is a data-acquisition system based on a microcontroller (µC). As a member of the MAXQ® family of 16-bit reduced instruction set computing (RISC) µCs, the MAXQ7666 is ideal for low-cost, low-power, embedded applications such as automotive, industrial controls, and building automation. The flexible, modular architecture design used in this µC allows targeted product development for specific applications with minimal effort.
The MAXQ7666 incorporates a high-performance 16-bit RISC core, a 12-bit 500ksps SAR ADC with a programmable-gain amplifier (PGA), a 12-bit DAC with a buffered voltage output, and a full CAN 2.0B controller, supporting transfer rates up to 1Mbps. The device includes an internal crystal oscillator that drives an external crystal of 8MHz for the system clock. An internal 7.6MHz RC oscillator provides an alternate system clock. The MAXQ7666 includes an internal temperature sensor to measure die temperature and an external temperature-sensor driver. The analog functions and digital I/O operate from a +5V supply, while the internal digital core operates from a +3.3V supply. An internal linear regulator can provide +3.3V to the digital supply if an external +3.3V supply is not available. The MAXQ7666 also includes two power-supply supervisors and a JTAG interface for in-system programming and debugging. The device includes 16KB (8K x 16) of program flash memory, up to 512 bytes (256 x 16) of data flash, and 512 bytes (256 x 16) of RAM.
The MAXQ7666 is available in a 48-pin TQFN (7mm x 7mm) package and is specified to operate from -40°C to +125°C.
Key Features
Applications/Uses
High-Performance, Low-Power, 16-Bit RISC Core
8MHz Operation, Approaching 1MIPS per MHz
Low Power (< 3mA/MIPS, DVDD = +3.3V)
16-Bit Instruction Word, 16-Bit Data Bus
33 Instructions (Most Require Only One Clock Cycle)
16-Level Hardware Stack
Three Independent Data Pointers with Automatic Increment/Decrement
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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