HT95A20P-- I/O Type Phone 8-Bit MCU

General Description

The HT95A20P family MCU are 8-bit high performance RISC-like microcontrollers with built-in DTMF generator 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, HT95A20P data RAM and I/O lines for high end products design. In addition, for power management purpose, HT95A20P has a built-in frequency up conversion circuit (32768Hz to 3.58MHz) which provides dual system clock and four types of operation modes. For example, HT95A20P can operate with low speed system clock rate of 32768Hz in green mode with little power consumption. HT95A20P can also operate with high speed system clock rate of 3.58MHz in normal mode for high performance operation. HT95A20P To ensure smooth dialer function and to avoid MCU shut-down in extreme low voltage situation, HT95A20P dialer I/O circuit is built-in to generate hardware dialer signals such as on-hook, HT95A20P hold-line and hand-free. Built-in real time clock and programmable frequency divider are provided for additional fancy features in product developments. HT95A20P device is best suited for phone products that comply with versatile dialer specification requirements of different areas or countries.

Features

• HT95A20P    Provide MASK type and OTP type version
• HT95A20P    Operating voltage range: 2.4V~5.5V
• HT95A20P    Program ROM
  - HT95A400/40P: 16K×16 bits
  - HT95A300/30P: 8K×16 bits
  - HT95A200/20P: 4K×16 bits
  - HT95A100/10P: 4K×16 bits
• HT95A20P    Data RAM
  - HT95A400/40P: 2880×8 bits
  - HT95A300/30P: 2112×8 bits
  - HT95A200/20P: 1152×8 bits
  - HT95A100/10P: 384×8 bits
• HT95A20P    Bidirectional I/O lines
  - HT95A400/40P: 44 I/O lines
  - HT95A300/30P: 28 I/O lines
  - HT95A200/20P: 28 I/O lines
  - HT95A100/10P: 20 I/O lines
• HT95A20P    16-bit table read instructions
• HT95A20P    Subroutine nesting
  - HT95A400/40P: 12 levels
  - HT95A300/30P: 8 levels
  - HT95A200/20P: 8 levels
  - HT95A100/10P: 4 levels
• HT95A20P    Timer
  - Two 16-bit programmable Timer/Event Counter
  - Real time clock (RTC)
  - Watchdog Timer (WDT)
• HT95A20P    Programmable frequency divider (PFD)
  Supported for HT95A400/40P, HT95A300/30P, HT95A200/20P
•     Dual system clock: 32768Hz, 3.58MHz
•     Four operating modes: Idle mode, Sleep mode, Green mode and Normal mode
•     Up to 1.117µs instruction cycle with 3.58MHz system clock 
•     All instructions in one or two machine cycles
•     Built-in 3.58MHz DTMF Generator
•     Built-in dialer I/O
•     HT95A400/40P: 64-pin QFP package
  HT95A300/40P: 48-pin SSOP package
  HT95A200/20P: 48-pin SSOP package
  HT95A100/10P: 28-pin SOP package
• Data Sheet  
• Revision History
• 封装信息
  28-pin SOP 封装
  48-pin SSOP 封装
  64-pin QFP 封装
• 支持工具
• 问答集
• 应用范例
• 相关产品信息
   
  HT95A40P、HT95C40P 电话通信产品微控制器系列
   
  HT95A、HT95L、HT95C 电话通信产品微控制器系列
   
• Selection Guide
• 产品型号索引

HT95A20P_中文PDF(点击下载)