HT95C200 Datasheet, PDF (6/50 Pages) Holtek Semiconductor Inc – 8-Bit CID Type Phone Controller MCU

Preliminary _{HT95C200/20P/300/30P}
Pin Name
Peripherals
DTMF
MUSIC
TIP
RING
RDETI
RTIME
LBIN
I/O
Description
This pin outputs dual tone signals to dial out the phone number. The load resistor should
O _{not be less than 5kW.}
O This pin outputs the single tone that generated by the PFD generator.
I
Input pin connected to the tip side of the twisted pair wires. It is internally biased to 1/2
VDD when the device is in power-up mode. This pin must be DC isolated from the line.
I
Input pin connected to the ring side of the twisted pair wires. It is internally biased to 1/2
VDD when the device is in power-up mode. This pin must be DC isolated from the line.
I This pin detects ring energy on the line through an attenuating network.
I/O
Schmitt trigger input and NMOS output pin which functions with RDETI pin to make an
RC network that performs ring detection function.
I This pin detects battery low through external R1/R2 to determine threshold voltage.
Absolute Maximum Ratings
Supply Voltage ........................................-0.3V to 5.5V
Input Voltage .............................. V_SS-0.3 to V_DD+0.3V
Storage Temperature ...........................-50°C to 125°C
Operating Temperature ..........................-25°C to 70°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
Electrical Characteristics
Symbol
CPU
Parameter
I_IDL
Idle Mode Current
I_SLP
Sleep Mode Current
I_GRN
Green Mode Current
I_NOR
Normal Mode Current
V_IL
V_IH
I_OL
I_OH
R_PH
V_LBIN
I/O Port Input Low Voltage
I/O Port Input High Voltage
I/O Port Sink Current
I/O Port Source Current
Pull-high Resistor
Low Battery Detection
Reference Voltage
Test Conditions
V_DD
Conditions
32768Hz off, 3.58MHz off,
5V CPU off, LCD off, WDT off,
no load
32768Hz on, 3.58MHz off,
5V CPU off, LCD off, WDT off,
no load
32768Hz on, 3.58MHz off,
5V CPU on, LCD off, WDT off,
no load
32768Hz on, 3.58MHz on,
5V
CPU on, LCD on, WDT on,
DTMF generator off,
FSK decoder off, no load
5V
¾
5V
¾
5V
¾
5V
¾
5V
¾
5V
¾
Ta=25°C
Min. Typ. Max. Unit
¾
¾
2
mA
¾
¾
30
mA
¾
¾
50
mA
¾
¾
3
mA
0
¾
1
V
4
¾
5
V
4
6
¾
mA
-2
-3
¾
mA
10
30
¾
kW
1.10 1.15 1.20
V
Rev. 0.10
6
October 1, 2002