HT95CXXX
CID Type Phone 8-Bit MCU
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
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HT95C200/20P: 1152´8 bits
·
Bidirectional I/O lines
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HT95C400/40P: 40~28 I/O lines
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HT95C300/30P: 28~16 I/O lines
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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.
Rev. 1.50
1
May 26, 2005
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
