HT95R54

www.DataSheet4U.com HT95R54/HT95R55 CID Phone 8-Bit MCU Technical Document · Application Note - HA0075E MCU Reset and Oscillator Circuits Application Note Features · Operating voltage: · Internal DTMF generator · Internal DTMF receiver · Internal FSK decoder - Support Bell 202 and V.23 - Support ring and line reverse detection · 12-bit Audio DAC output · Power-down and wake-up feature for power-saving fSYS=3.58MHz: 2.2V~5.5V fSYS=7.16MHz: 3.0V~5.5V fSYS=10.74MHz: 3.0V~5.5V fSYS=14.32MHz: 4.5V~5.5V · Program Memory: 8K´16 (HT95R54) 16K´16 (HT95R55) · 2112´8 Data Memory · 38 bidirectional I/Os with pull-high options · 2 NMOS output-only lines · External interrupt input · Three 16-bit timers with interrupts · Timer external input · 8-level stack · 32768Hz system oscillator · 32768Hz up to 14.32MHz frequency-up circuit · Real time clock function · Watchdog timer function · PFD driver output · Serial Interfaces Module: SIM for SPI or I C 2 operation: Idle mode, Sleep mode, Green mode and Normal mode · Up to 0.28ms instruction cycle with 14.32MHz system clock at VDD=4.5V~5.5V · Bit manipulation instructions · Table read function · 63 powerful instructions · All instructions executed in 1 or 2 machine cycles · Low voltage reset function · Supported by comprehensive suite of hardware and software tools · Internal low battery detector · Software Controlled R-Type LCD Driver (SCOM) · 64-pin LQFP package General Description The series of CID phone MCU are 8-bit high performance,...