Renesas Electronics has added to its range of RL78 microcontrollers with devices that integrate enhanced analogue circuits for industrial automation sensors and medical applications.
The RL78/G1A microcontrollers incorporate a 12-bit A/D converter.
There is an independent power supply for internal analogue parts that reduces noise influence from digital peripheral lines. The new devices support a maximum of 28 channel analogue inputs, making them suitable for sensor applications.
Power consumption is specified as 66µA/MHz in active mode, and 0.57µA with RTC + LVD active. There is a snooze mode that supports analogue-to-digital (A/D) conversion and serial communication while the CPU is in standby mode, which significantly extends the life of battery-operated devices.
The RL78/G1A MCUs are available in 3 x 3 mm land grid array (LGA) package and 4 x 4 mm ball grid array (BGA) package.
The RL78 MCUs comply with standard safety regulations, such as IEC60730, which are required for electrical appliances. Such features include a flash memory cyclic redundancy check (CRC) function, RAM parity error checking, clock fail and frequency detection circuit, A/D test function and illegal memory access detection.
Renesas has its E1 on-chip debugging emulator and the IECUBE full-spec emulator. For flash programming Renesas offers the PG-FP5 programmer or factory programming.
Support for design of applications software is provided by the IAR Embedded Workbench integrated development environment (IDE) and optimized C++ compiler.
Samples of Renesas’ new RL78/G1A Group of MCUs will be available in Q1 2012. Mass production is scheduled to begin in Q2 2012.
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