The microcontroller series includes 80-pin 78K0R/LF3, 100-pin 78K0R/LG3 and 128-pin 78K0R/LH3 and features an extremely low standby current consumption of just 1.2 ?A when the LCD function is activated and the CPU is stopped. This 90 percent reduction of current consumption compared to previous products was made possible thanks to an adjustable internal LCD reference voltage and a capacitive voltage splitting that - unlike conventional systems with LCD resistive network - does not produce any unnecessary cross current.
In addition to the proven 78K0R CPU core from NEC Electronics and the LCD controller/driver circuit, the devices are also equipped with 12-bit A/D and 12-bit D/A converters, various operational amplifiers and up to 128 Kbytes Flash memory as well as 7 Kbytes of RAM. A supply voltage between 1.8 and 5.5V is required for normal operation and also for Flash memory programming.
Due to the high level of integration, not only is the power consumption reduced but also the number of components previously required is also drastically reduced. This reduction of PCB layout area at the same time also reduces the costs for the peripheral logic.
Data sheets with main specifications are available immediately from Gleichmann Electronics. Samples will be available e/o April 2009 and, according to NEC Electronics, mass production is scheduled to start in October 2009.