SS80C1EX

Overview

SS80C1EX is a special MCU for electronic cigarettes that integrates MIC detection, heating wire resistance detection, short-circuit protection, and 2A switching charger.

Features

• ​​​​​​Enhanced 8-bit microcontroller compatible with the 8051 instruction set 
  • Maximum frequency 12 MHz
  • Single clock instruction cycle，the performance is 8 times of the native 8051
• Memories：8KB Code Flash，128B EEPROM，192B Data RAM
• Operating voltage: 2.7V~5.5V
• Support one or multiple power supplies from VIN and BAT
  • One or more power supplies:adapters(VIN) and batteries(BAT)
• Integrated VDD low power, system over-temperature protection
• Ultra-low power dissipation
  • Support 4 operating modes: Normal, Low-speed, IDLE, and SLEEP      
  • Power dissipation in SLEEP mode: 2μA   
  • Wake up the system by comparing IO input with specific levels
• 1 adjustable NTC
• 12-bit 10-channel ADC
  • 8 external and 2 internal inputs
  • All external input channels support configurable channel gain for current and microvoltage measurement scenarios
• 2 RC oscillators
  • Low-frequency RC oscillator LORC, 32KHz
  • High-frequency RC oscillator HIRC, 12MHz
• 1 SysTick, providing timing reference for the program
• 1 AlwaysTimer, can wake up the system from SLEEP mode
• 1 watchdog timer, can be used to reset when the system times out
• 3* 16-bit timers  
  • Timer 0 can be used to generate PWM0
  • Timer 1 can be used to generate PWM1 and enable  ACMP
  • Timer 2 can generate 5 PWMs with the same frequency and different duty cycles at the same time
• Integrated linear charger management unit with maximum 2A charge current 
  • Support 3.2V~5.5V wide voltage input, charge voltage and charge current can be finely adjusted 
  • Supports undervoltage and temperature loop functions
  • Support short-circuit protection of sampling resistors
• 2* DCMP
• 2* ACMP
  • Support linkage control with timer 1 to turn on/off
  • Support linkage control with I/O to break
• Built-in E-cigarette MIC detection module
  • The maximum sampling range supports 100pF capacitor
  • Support MIC capacitance increasing or decreasing to wake, can meet the inhalation or exhalation wakeup
  • Support detection of most e-cigarette airflow sensors
  • Negative pressure triggering thresholds can be flexibly configured
  • High-resolution sampling configuration, which meets the application requirements of adjusting the power according to the negative pressure
  • Conversion rates up to 50Hz of negative pressure detection
• Integrated e-cigarette heating coil resistance detection
• 17 bidirectional I/O ports
  • 17 ports can be configured as pull-push mode or open-drain mode
  • 6  I/Os supports large current drive capability
  • Several I/Os can be controlled to output a specific protection level when the comparators are triggered
  • The digital and analog functions of the pins can be present at the same time (for example, when the pin is high level as a GPIO output, ADC can be turned on to measure the actual voltage of the pin)
• 1 UART, supports half-duplex communication on a single pin
  • Support input/output signal reverse function
• Integrated 2-wire debugging / programming interface
• Package: QFN24

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