HT95R45

www.DataSheet4U.com HT95R45 Phone 8-Bit MCU with DTMF Receiver & CPT Features · Operating voltage: · Serial Interfaces Module: SIM for SPI or I2C · Internal DTMF generator · Internal DTMF receiver · 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: 16K´16 · 2112´8 Data Memory · 42 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 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 Call Progress Tone (CPT) detector · 64/80-pin LQFP package General Description The phone MCU is a 8-bit high performance, RISC architecture microcontroller devices specially designed for telephone applications. Devices flexibility are enhanced with their internal special features such as power-down and wake-up functions, DTMF generator, DTMF receiver, CPT detector, PFD dr...