Sinowealth SH79F1619

SH79F1619 is a high-speed and high-efficiency 8051 compatible microcontroller. At the same oscillation frequency, it has the superior characteristic of faster operation compared to traditional 8051 chips. SH79F1619 retains most of the features of the standard 8051 chip. These features include built-in 256 bytes of RAM, 1 UART, and external interrupts INT2 and INT3. In addition, SH79F1619 also integrates an external 256 bytes of RAM and 4 16-bit timers/counters (Timer2 - Timer5). The microcontroller also includes a 16K byte Flash block suitable for programs and data.

SH79F1619 not only integrates standard communication modules such as EUART, but also integrates modules such as an LCD driver, an ADC with a built-in comparison function, and a PWM timer.

To achieve high reliability and low power consumption, SH79F1619 has a built-in watchdog timer, low-voltage reset function, and system clock monitoring function. In addition, SH79F1619 also provides two low-power power-saving modes.

• 8-bit MCU based on 8051 instruction pipeline architecture
• Flash ROM: 16K bytes
• EEPROM-like: 1K bytes
• RAM: Internal 256 bytes, External 256 bytes, LCD RAM 19 bytes
• Operating voltage: fOSC = 32.768kHz - 12.3MHz, VDD = 2.0V - 5.5V
• Oscillator (code option):
  • Crystal resonator: 32.768kHz
  • Crystal resonator: 2MHz - 12.3MHz
  • Ceramic resonator: 2MHz - 12.3MHz
  • Internal RC oscillator: 12.3MHz (±2%)/128K
• 26 CMOS bidirectional I/O pins
• Built-in I/O pull-up resistors
• 8 high-current drive ports
• 4 × 16-bit timers: T2, T3, T4, and T5
• One 12-bit PWM timer
• Interrupt sources:
  • Timer 2, 3, 4, 5
  • External interrupt 2, 3
  • External interrupt 4: 4 inputs
  • ADC, EUART, SCM, LPD
  • PWM
• EUART0
• 6-channel 10-bit ADC with built-in compare function
• LED driver:
  • 4 × 8 segments (1/4 duty cycle)
• LCD driver:
  • 4 × 12 segments (1/4 duty cycle, 1/3 bias)
• Built-in low voltage reset (LVR) (code option):
  • LVR voltage 1: 4.3V
  • LVR voltage 2: 2.1V
• CPU machine cycle: 1 oscillator cycle
• Watchdog timer (WDT)
• Warm-up counter
• Power-saving operating modes:
  • Idle mode
  • Power-down mode
• Flash type
• Package: SOP28
• CPU core registers: ACC, B, PSW, SP, DPL, DPH
• Extended 'MUL' and 'DIV' instructions: 16-bit × 8-bit, 16-bit / 8-bit
• Dual data pointers
• CPU enhanced core registers: AUXC, DPL1, DPH1, INSCON
• Lower 128-byte RAM (addresses 00H to 7FH): direct or indirect addressing
• Upper 128-byte RAM (addresses 80H to FFH): indirect addressing only
• Special function registers (SFR, addresses 80H to FFH): direct addressing only
• External RAM accessible indirectly via MOVX instruction
• SH79F1619 provides an additional 256-byte RAM in external data space for high-level language support
• SH79F1619 also includes 19-byte LCD RAM (1E0H - 1F2H)
• Flash memory: 16 × 1KB blocks, 16KB total
• Program and erase operations supported across the full operating voltage range
• In-circuit programming (ICP) supports write, read, and erase operations
• Chip/sector erase and programming supported; sector erase time < 3ms, byte program time < 30us
• Program/erase endurance: Program area: minimum 1,000 cycles; EEPROM-like area: minimum 100,000 cycles
• Data retention: minimum 10 years, low power

• High-speed, high-efficiency 8051-compatible MCU applications
• Applications requiring built-in 256-byte RAM and external 256-byte RAM
• Applications requiring 4 × 16-bit timers/counters (Timer2–Timer5)
• Applications requiring 16K-byte Flash for program and data storage
• Applications requiring modules such as EUART, LCD driver, ADC with built-in comparator, and PWM timer
• Low-power, high-reliability applications requiring watchdog timer, low-voltage reset, and system clock monitoring
• Applications requiring power-saving modes (Idle Mode and Power-Down Mode)