Lumissil IS3xCS8977-Multi purpose MCU

IS3xCS8977 is a general-purpose MCU with 64KB Flash and 2KB SRAM. CPU accesses the e-Flash through program address read and through Flash Controller which can perform software read/write operations of e-Flash. CPU is an 8051 with enhanced multiplication and division accelerator. There are three clock sources for system, one is a 16MHz/32MHz IOSC, one is XCLK, and the other one is SOSC32KHz (typical 32KHz) which is divided from slow oscillator. The clock selections are combined with flexible power management schemes, including NORMAL, STOP, and SLEEP modes to balance speed and power consumption.

Key features

• 8051 CPU core up to 32MHz
• 16-bit Timers T0/T1/T2/T3/T4 and 24-bit T5
• Power saving modes – Normal, STOP, and SLEEP modes
• Capacitance sense touch-key controllers

Additional features

• CPU and Memory
  • 1-Cycle 8051 CPU core up to 32MHz
  • 16-bit Timers T0/T1/T2/T3/T4 and 24-bit T5
  • Checksum and CRC accelerator
  • WDT1 by SYSCLK, WDT2/WDT3 by SIOSC
  • Clock fault monitoring
  • Up to 6 external interrupts shared with GPIO pins
  • Power saving modes – Normal, STOP, and SLEEP modes
  • 256B IRAM and 1792B XRAM with ECC check
  • 64KB Code e-Flash with ECC and two 128x16 Information Block
    • Code security and data loss protection
    • 100K endurance and 10 years retention
       
• Clock sources
  • Internal oscillator at +/- 2% 16MHz/32MHz with Spread Spectrum option
  • Internal low power oscillator 128KHz/256KHz
  • External clock option and clock out
     
• Digital peripherals
  • 6 CH 8/10/12-bit center-aligned PWM controller
    • Tigger interrupt and ADC conversion
  • 16 CH 8-bit PWM left/right aligned
  • One 16-bit Timer/Capture and One 16-bit quadrature decoder
  • Buzzer/Melody generator
  • One I2C Master
  • One I2C Slave – also for ISP and debug
  • One SPI Master/Slave Controllers
  • One EUART1 and one EUART2/LIN
     
• Analog peripherals
  • Capacitance sense touch-key controller scan up to 27 key inputs
  • 12-Bit SAR ADC with GPIO analog input
  • 8-Bit DAC and four analog comparators
  • Power on reset and Low voltage detect (2.2V-4.5V)
     
• Miscellaneous
  • Up to 28 GPIO pins with multi-function options
  • 2.3V to 5.5V single supply
  • Active current < 150uA/MHz in Normal mode
  • Low power standby (1uA) in SLEEP mode
  • Operating temperature -40°C t0 85°C
  • TSSOP-20/24/28, LQFP-32 and QFN-32 package (RoHS compliant)

Applications

• Touch key applications
• Automotive applications
• Appliances such as whitegoods
• Consumer gaming applications