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Specification

Overview

  • General Description

    The ePS7100 is an 8-bit RISC MCU embedded with a 5 x 40 LCD driver along with two 8-bit timers, one 16-bit general timer and a watchdog timer. It has also has on-chip 0.5K bytes RAM and 10K words program ROM. It is highly ideal for advance scientific calculator application, particularly those requiring high performance and low cost solution. The MCU core is one of ELAN’s second generation RISC based IC’s, known as RISC II (RII) series. The core is specifically designed for low power and portable device applications. The ePS7100 also supports Fast, Slow, and Idle modes, as well as Sleep mode to enhance its low power consumption features.

  • Features & Benefits

    • CPU

      • 8 bit RISC MCU
      • Operating voltage: 1V~2.2V
      • Single system clock source: 8KHz/16KHz/32KHz for ldle and Slow mode and 60KHz/75KHz/100KHz/200KHz/300KHz for Fast mode
      • One Instruction cycle time = 2 x System clock time
      • Program ROM addressing: Maximum 10K words
      • 128 bytes un-banked RAM including special registers and common registers
      • 4 x 128 bytes banked RAM
      • Max. of 32-level RAM stack
      • Table Lookup function is fast and highly efficient when combined with Repeat instruction
      • Register-to-Register move instruction
      • Compare and Branch in one instruction (2 cycles)
      • Single Repeat function (256 repeat times max.)
      • Decimal ADD and SUB instruction
      • Full range Call and Jump ability (2 cycles)

    • Peripheral

      • 21 general I/O pins (Port A.0~7, Port B.0~7 share with segment pins, Port C.0~1 share with common pins, Port D.0~2)
      • 5/4/3 COM x 40 SEG LCD driver (embedded), 1/2 bias or 1/3 bias
      • One 16-bit timer (Timer 0) with event counter function
      • One 8-bit timer (Timer 1) with wake-up function
      • One 8-bit timer (Timer 2)
      • One 8-bit Watchdog Timer
      • Key I/O function with a maximum of 30 keys (Key matrix: Port A.0~5 and Port A.6~7 and Port D.0~2) when LCD driver is 5 x 40

    • Internal specification

      • Watchdog Timer with its own on-chip RC oscillator
      • MCU operating modes: Sleep Mode, Idle Mode, Slow Mode, and Fast Mode
      • Supports RC oscillation for system clock
      • MCU wake-up function consists of input wake up and Timer 1 wake up
      • MCU interrupt function consist of input port interrupt and Timer interrupt (Timers 0~2)
      • MCU reset function includes power-on reset, RSTB pin reset, and Watchdog timer reset

    • Die Form

      • Available, Please contact Elan Sales

  • Data Sheet

  • Technical Information

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