tenx technology TM8957
The TM8957 is an embedded high-performance 4-bit microcontroller with LCD driver on a chip. It contains all the necessary functions, such as 4-bit parallel processing ALU, ROM, RAM, I/O ports, timer, clock generator, dual clock operation, Resistance to Frequency Converter (RFC), EL panel driver, LCD driver, look-up table, watchdog timer and key matrix scanning circuitry, etc...DESCRIPTION
Oct, 2010 New release Mar, 2011 1. Modify KI1~4 explanation to the description section. 2. Modify the figure RESET to RESETB. Dec, 2011 Add Ordering Information table Preliminary 2 tenx technology inc. Rev 1.2, 2011/12/30 Advance Information DS-TM8957_E 4-Bit Microcontroller CONTENTS AMENDMENT HISTORY ..................................................................................................... 2GENERAL DESCRIPTION
.................................................................................................. 4FEATURES
.......................................................................................................................... 4APPLICATIONS
.................................................................................................................. 6 BLOCK DIAGRAM .............................................................................................................. 6 PAD ASSIGNMENT.............................................................................................................