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HT95A400 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT95A400 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 51 page  HT95CXXX CID Type Phone 8-Bit MCU Rev. 1.50 1 May 26, 2005 Features · Provide MASK type and OTP type version · Operating voltage range: - FSK: 3.0V~5.5V - Others: 2.4V~5.5V · Program ROM - HT95C400/40P: 16K´16 bits - HT95C300/30P: 8K´16 bits - HT95C200/20P: 8K´16 bits · Data RAM - HT95C400/40P: 2880´8 bits - HT95C300/30P: 2112´8 bits - HT95C200/20P: 1152´8 bits · Bidirectional I/O lines - HT95C400/40P: 40~28 I/O lines - HT95C300/30P: 28~16 I/O lines - HT95C200/20P: 28~20 I/O lines · 16-bit table read instructions · Subroutine nesting - HT95C400/40P: 12 levels - HT95C300/30P: 8 levels - HT95C200/20P: 8 levels · Timer - Two 16-bit programmable Timer/Event Counter - Real time clock (RTC) - Watchdog Timer (WDT) · Programmable frequency divider (PFD) · Dual system clock: 32768Hz, 3.58MHz · Four operating modes: Idle mode, Sleep mode, Green mode and Normal mode · Up to 1.117ms instruction cycle with 3.58MHz system clock · All instructions in one or two machine cycles · Built-in 3.58MHz DTMF Generator · Built-in FSK decoder: - Supports Bell 202 and V.23 - Supports ring and line reversal detection · Built-in dialer I/O · Built-in low battery detector · LCD driver - LCD contrast can be adjusted by software or exter- nal resistor - Support two LCD frame frequency 64Hz, 128Hz - Support 16 or 8 common driver pins - Some segments or commons can option to bidirectional I/O lines - HT95C400/40P: 48 seg.´16 com. - HT95C300/30P: 48 seg.´16 com. - HT95C200/20P: 24 seg.´16 com. · 128-pin QFP package Applications · Deluxe Feature Phone · Caller ID Phone · Cordless Phone · Fax and answering machines · Other communication system General Description The HT95CXXX family MCU are 8-bit high performance RISC-like microcontrollers with built-in DTMF generator, FSK decoder and dialer I/O which provide MCU dialer implementation or system control features for telecom product applications. The phone controller has a built-in program ROM, data RAM, LCD driver and I/O lines for high end products design. In addition, for power man- agement purpose, it has a built-in frequency up conver- sion circuit (32768Hz to 3.58MHz) which provides dual system clock and four types of operation modes. For ex- ample, it can operate with low speed system clock rate of 32768Hz in green mode with little power consump- tion. It can also operate with high speed system clock rate of 3.58MHz in normal mode for high performance operation. To ensure smooth dialer function and to avoid MCU shut-down in extreme low voltage situation, the dialer I/O circuit is built-in to generate hardware di- aler signals such as on-hook, hold-line and hand-free. Built-in real time clock and programmable frequency di- vider are provided for additional fancy features in prod- uct developments. The device is best suited for feature phone products that comply with versatile dialer specifi- cation requirements of different areas or countries. |
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Similar Description - HT95A400 |
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