EM78F648/644/642/641N 548/544/542/541N Flash Serie.
EM78F641N - Flash Series 8-Bit Microcontroller
EM78F648/644/642/641N 548/544/542/541N Flash Series 8-Bit Microcontroller Product Specification DOC. VERSION 1.2 ELAN MICROELECTRONICS CORP. March 201.