MOSEL VITELIC MOSEL VITELIC INC. MSU2031 Preliminary October 1996 8 - Bit Microcontroller Features General 8051 family compatible 64 K byte External Memory 8 bit bus I/O ports ROM less for U2031 128 byte RAM Two 16 bit Timers (Event Counters) 128 byte depth stack Full duplex serial channel Bit operation instructions Page free jumps 8 - bit Unsigned Division 8 - bit Unsigned Multiply BCD arithmatic Direct Addressing Indirect Addressing Nested Interrupt Two priority level interrupt A serial I/O port Working at 16/25/40 MHz Clock Description The MVI U2031 is an 8 - bit single chip microcontroller. It provides hardware features and powerful instruction set that are necessary to make it a versatile and cost effective controller for those applications need up to 64K byte external memory either for program or for data and mixed. A serial input / output port is provided for I/O expansion, Inter - processor communications, full duplex UART. Ordering Information MSU2031ajks a:process identifier. {C:=COMS} jk:working clock in MHz. {16, 25, 40} s:package type. {blank:=dice, P:=40-L 600 mil PDIP; j:=44-L PLCC} See 14-page PID 251***** 10/96 for details which belongs to MSU2051. Taiwan #1, Creation Road I, Science - based Industrial Park, Hsinchu, 30077 Taiwan, ROC "audio_reply @ccmail.mosel.com.tw" TEL: 886-3-5770055 FAX: 886-3-5772788 FAX: 886-3-5784732 Taipei 7F, #102 Sec. 3, Ming Chung E. Road, Taipei,105 Taiwan, ROC Hongkong #19 Dai Fu Street, Taipo Industrial Estate, Taipo, N.T. Hongkong TEL: 852-2388-8277(MKO) TEL: 852-2665-4883 FAX: 852-2664-2406 FAX: 852-2770-8011(MKO) TEL: 886-2-5451213 FAX: 886-2-5451214 U.S.A. #3910 North First Street, San Jose, CA. 65134-1501 U.S.A. TEL: 1-408-433-6000 FAX: 1-408-433-0952 Specifications subject to change without notice, contact your sales representatives for the most recent information. 1/1 (PID251***** 10/96)