HT95R54 Datasheet, PDF (1/80 Pages) Holtek Semiconductor Inc – CID Phone 8-Bit MCU

HT95R54/HT95R55
CID Phone 8-Bit MCU
Technical Document
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
f_SYS=3.58MHz: 2.2V~5.5V
f_SYS=7.16MHz: 3.0V~5.5V
f_SYS=10.74MHz: 3.0V~5.5V
f_SYS=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}²_C
· 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
operation: Idle mode, Sleep mode, Green mode
and Normal mode
· Up to 0.28ms instruction cycle with 14.32MHz
system clock at V_DD=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 perfor-
mance, RISC architecture microcontroller devices spe-
cially designed for telephone applications. Devices
flexibility are enhanced with their internal special fea-
tures such as power-down and wake-up functions,
DTMF generator, DTMF receiver, FSK decoder, PFD
driver, SPI and I²C interface, audio DAC output, etc.
These features combine to ensure applications require
a minimum of external components and therefore re-
duce overall product costs.
Having the advantages of low-power consumption,
high-performance, I/O flexibility as well as low-cost,
these devices have the versatility to suit a wide range of
application possibilities such as FSK & DTMF mode
Caller ID phone, Home Security products, deluxe fea-
ture phones, cordless phones, fax and answering ma-
chines, etc.
The device will be ideally suited for phone products that
comply with versatile dialer specification requirements
for different areas or countries. The device is fully sup-
ported by the Holtek range of fully functional develop-
ment and programming tools, providing a means for fast
and efficient product development cycles.
Rev. 1.00
1
March 3, 2010