Maxim Integrated Products introduces the MAXQ613, a high-performance, 16-bit RISC microcontroller with an integrated infrared (IR) transceiver. Based on the highly successful MAXQ610 microcontroller, the MAXQ613 contains a reduced memory footprint (48KB flash, 1.5KB SRAM), which provides more flexibility to system designers. For applications that do not require the larger memory resources provided by the MAXQ610 (64KB flash, 2KB SRAM), the MAXQ613 allows selection of a smaller memory size to reduce system cost. It is ideal for low-power applications such as sensors, infrared remote controls, meters, and data loggers.
The MAXQ613 operates from a 1.7V to 3.6V external supply, which allows it to be powered directly from two standard AA cells. Since the end-of-life voltage for a AA cell pair is approximately 1.6V, this supply range allows 95% of the battery capacity to be utilized. It effectively increases battery life by up to 15% over conventional solutions (which only operate down to 2.0V), thus extending operation by several months in many applications. To further increase battery life, the MAXQ613 consumes an ultra-low 200nA (typ) in stop-mode operation.
Block Diagram
Key Features
- High-Performance, Low-Power, 16-Bit RISC Core
- DC to 12MHz Operation Across Entire Operating Range
- 1.70V to 3.6V Operating Voltage
- 33 Total Instructions for Simplified Programming
- Three Independent Data Pointers Accelerate Data Movement with Automatic Increment/Decrement
- Dedicated Pointer for Direct Read from Code Space
- 16-Bit Instruction Word, 16-Bit Data Bus
- 16 × 16-Bit General-Purpose Working Registers
- Secure MMU for Application Partitioning and IP Protection
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Memory Features
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48KB Program Flash Memory
- 512-Byte Sectors
- 20,000 Erase/Write Cycles per Sector
- Masked ROM Available
- 1.5KB Data SRAM
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48KB Program Flash Memory
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Additional Peripherals
- Power-Fail Warning
- Power-On Reset (POR)/Brownout Reset
- Automatic IR Carrier Frequency Generation and Modulation
- Two 16-Bit Programmable Timers/Counters with Prescaler and Capture/Compare
- One SPI and One USART Port
- Programmable Watchdog Timer
- 8kHz Nanopower Ring Oscillator Wake-Up Timer
- Up to 24 General-Purpose I/Os
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Low Power Consumption
- 0.2µA (typ), 2.0µA (max) in Stop Mode, TA = +25°C, Power-Fail Monitor Disabled
- 2.0mA (typ) at 12MHz in Active Mode
This highly integrated microcontroller includes a USART, an SPI master/slave communication port, an IR module with carrier-frequency generation, and up to 24 general-purpose I/O pins. Additionally, the MAXQ613 provides a secure memory-management unit (MMU) to prevent device cloning and unauthorized access to sensitive application code. It is ideally suited for remote controls, security systems, thermostats, blood pressure monitors, and a wide variety of other consumer and medical applications.
The MAXQ613 is available in a 32-pin TQFN/LQFP or 44-pin TQFN/TQFP; it is also available as bare die. Prices start at $1.32 (1000-up). To speed designs, Maxim's website offers many application notes and software examples to use with the MAXQ family of products .
