SN8P2949 is a high-performance 8-bit microcontroller with the 8K-word of the OTP ROM.
The SN8P2949 provides the following features: 256 bytes of RAM, one 8-bit basic timer
(T0) function, two 8-bit counters / timers (TC0,TC1) , a watchdog timer, 6-sources
interrupts (INT0, INT1, T0, TC0, TC1, ADC), a in system programming ROM (ISP ROM)
function with VPP voltage generation internally for calibration data programming in
ROM, a 20-bit ADC, a PGIA, three voltage regulators including AVDDR, AVE+ and VLED
module for LED driving, a integrated R and C-Type LCD driver for 4-common x 32 -segments
LCD panel and a 8-level stack register. In addition, the SN8P2949 is a dual clock
system, i.e. high-speed system clock and low-speed system clock. The high-speed system
clock sources is generated from internal 4MHz high-speed RC oscillator (IHRC 4MHz).
The low-speed system clock can be generated from on-chip low speed RC oscillator circuit
(ILRC 32KHz@3.3V) or external 32768Hz crystal@ IHRC_RTC.