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PDF HT95R35 Data sheet ( Hoja de datos )
| Número de pieza | HT95R35 | |
| Descripción | Phone 8-Bit MCU | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
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HT95R35
Phone 8-Bit MCU with DTMF Receiver
Technical Document
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
fSYS= 3.58MHz: 2.2V~5.5V
fSYS= 14.32MHz: 4.5V~5.5V
· 16K´16 OTP type Program Memory
· 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 to 14.32MHz frequency-up PLL circuit
· Real time clock function
· Watchdog timer function
· PFD driver output
· Dual Serial Interfaces: SPI and I2C
· DTMF generator
· DTMF receiver
· 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 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
· 64-pin LQFP package
General Description
The HT95R35 MCU is an 8-bit high performance, RISC
architecture microcontroller device specially designed
for telephone applications. Device flexibility is en-
hanced with their internal special features such as
power-down and wake-up functions, DTMF generator,
www.DataSheet4UD.TcoMmF receiver, PFD driver, SPI and I2C interface, audio
DAC output, etc. These features combine to ensure ap-
plications require a minimum of external components
and therefore reduce 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 deluxe feature phone,
cordless phones, fax and answering machines, etc.
The device is best suited for phone products that com-
ply 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 October 7, 2009
1 page  
HT95R35
Symbol
Parameter
RPH Pull-high Resistor
Test Conditions
VDD Conditions
3V
¾
5V
Min. Typ.
66 200
33 100
VIL I/O Port Input Low Voltage ¾
¾
0¾
VIH I/O Port Input High Voltage ¾
¾ 0.7VDD ¾
IOL1 I/O Port Sink Current
3V
VOL= 0.1VDD
5V
34
46
IOL2 PC2, PC3 Sink Current
5V PC2/PC3= 0.5V
2.5 ¾
IOH1 I/O Port Source Current
3V
VOH= 0.9VDD
5V
-1 -2
-2 -3
IOH2 PC2, PC3 Leakage Current 5V PC2/PC3= 5V
¾¾
DTMF Generator (Operating Temperature: -20°C to 85°C
VTDC
DTMF Output DC Level
¾
¾ 0.45VDD ¾
VTOL
DTMF Sink Current
¾ VDTMF= 0.5V
0.1 ¾
DTMF Receiver
RIN Input Impedance (VP, VN) 5V
¾
¾ 10
IOL3 Sink Current (EST)
5V VOUT= 0.5V
1 2.5
IOH3 Source Current (EST)
5V VOUT= 4.5V
-0.4 -0.8
Low-voltage Reset
VLVR1
Low Voltage Reset 1
¾ Configuration option= 4.2V 3.98 4.2
VLVR2
Low Voltage Reset 2
¾ Configuration option= 3.15V 2.98 3.15
VLVR3
Low Voltage Reset 3
¾ Configuration option= 2.1V 1.98 2.1
Max.
330
166
0.3VDD
VDD
¾
¾
¾
¾
¾
2.5
0.7VDD
¾
¾
¾
¾
4.42
3.32
2.22
Unit
kW
V
V
mA
mA
mA
mA
V
mA
MW
mA
mA
V
V
V
www.DataSheet4U.com
Rev. 1.00
5 October 7, 2009
5 Page 
HT95R35
S ta c k
P o in te r
S ta c k L e v e l 1
S ta c k L e v e l 2
S ta c k L e v e l 8
P ro g ra m C o u n te r
P ro g ra m
M e m o ry
Arithmetic and Logic Unit - ALU
The arithmetic-logic unit or ALU is a critical area of the
microcontroller that carries out arithmetic and logic op-
erations of the instruction set. Connected to the main
microcontroller data bus, the ALU receives related in-
struction codes and performs the required arithmetic or
logical operations after which the result will be placed in
the specified register. As these ALU calculation or oper-
ations may result in carry, borrow or other status
changes, the status register will be correspondingly up-
dated to reflect these changes. The ALU supports the
following functions:
· Arithmetic operations ADD, ADDM, ADC, ADCM,
SUB, SUBM, SBC, SBCM, DAA
· Logic operations AND, OR, XOR, ANDM, ORM,
XORM, CPL, CPLA
· Rotation RRA, RR, RRCA, RRC, RLA, RL, RLCA,
RLC
· Increment and Decrement INCA, INC, DECA, DEC
· Branch decision JMP, SZ, SZA, SNZ, SIZ, SDZ, SIZA,
SDZA, CALL, RET, RETI
Program Memory
The Program Memory is the location where the user
code or program is stored. For these devices the Pro-
gram Memory is an OTP type, which means it can be
www.DataSheet4Up.rcoogmrammed once.
Structure
The Program Memory has a capacity of 8K by 16 bits.
The Program Memory is addressed by the Program
Counter and also contains data, table information and
interrupt entries. Table data, which can be setup in any
location within the Program Memory, is addressed by a
separate table pointer register.
Special Vectors
Within the Program Memory, certain locations are re-
served for special usage such as reset and interrupts.
· Location 000H
This vector is reserved for use by the device reset for
program initialisation. After a device reset is initiated, the
program will jump to this location and begin execution.
· Location 004H
This vector is used by the external interrupt. If the ex-
ternal interrupt pin on the device goes low, the pro-
gram will jump to this location and begin execution if
the external interrupt is enabled and the stack is not
full.
· Location 008H
This internal vector is used by the Timer/Event Coun-
ter 0. If a counter overflow occurs, the program will
jump to this location and begin execution if the
timer/event counter 0 interrupt is enabled and the
stack is not full.
· Location 00CH
This internal vector is used by the Timer/Event Coun-
ter 1. If a counter overflow occurs, the program will
jump to this location and begin execution if the
timer/event counter 1 interrupt is enabled and the
stack is not full.
· Location 010H
This internal vector is used by the DTMF receiver.
When the DTMF receiver is enabled, if the DTMF re-
ceiver detects a valid character available, the program
will jump to this location and begin execution if the pe-
ripheral interrupt is enabled and the stack is not full.
· Location 014H
This location is used by the RTC. When the RTC is en-
abled and a time-out occurs, the program will jump to
this location and begin execution if the RTC interrupt
is enabled and the stack is not full.
· Location 018H
This location is used by the Multi-function Interrupt. If
a falling edge transition is detected on PC0 or PC5, or
a rising edge transition detected on PC7 or SPI/I2C in-
terrupt, or external peripheral falling edge transition,
or timer 2 overflow, the program will jump to this loca-
tion and begin execution if the multi-function interrupt
is enabled and the stack is not full.
000H
D e v ic e In itia liz a tio n P r o g r a m
004H
E x te r n a l In te r r u p t S u b r o u tin e
0 0 8 H T im e r /E v e n t C o u n te r 0
In te r r u p t S u b r o u tin e
0 0 C H T im e r /E v e n t C o u n te r 1
In te r r u p t S u b r o u tin e
0 1 0 H P e r ip h e r a l In te r r u p t
S u b r o u tin e
014H
R T C In te r r u p t S u b r o u tin e
0 1 8 H M u lti- F u n c tio n
In te r r u p t S u b r o u tin e
3FFFH
1 6 b its
Program Memory Structure
Rev. 1.00
11 October 7, 2009
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HT95R35.PDF ] | |
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