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Silan Microelectronics

SC91215C Datasheet Preview

SC91215C Datasheet

TONE/PULSE DIALER

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SC91214/91215 SERIES
T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION
DESCRIPTION
The SC91214/15 Series is a single-chip, silicon gate, CMOS
integrated circuit with an on-chip oscillator for a 3.58MHZ crystal or
ceramic resonator. It provides a dialing pulse (DP) or dual tone multi-
frequency (DTMF) dialing. A standard 4 X4 matrix keyboard can be used
to support either DP or DTMF modes.
FEATURES
* One touch redial operation
* Tone/Pulse switchable
* 32 digit capacity for redialing
* Automatic mixed redialing (last number redial) of pulse to DTMF with
multiple automatic access pauses
* PABX auto-pause is 2.2 seconds
ORDERING INFORMATION
* DTMF Timing:
Manual dialing: minimum duration for bursts and pauses
Redialing: calibrated timing
* Hands-Free control function
* Wide operating voltage range: 2V to 5.5V
* Key-in beep tone output
Part
SC91214/15A
SC91214/15B
SC91214/15C
SC91214/15D
Package
DIP-16 Package
DIP-18 Package
DIP-18 Package
DIP-20 Package
* Digits dialed manually after redialing are cascadable and stored as
additional digits for the next redialing
* Uses inexpensive ceramic resonator (3.58 MHZ)
* Two versions for different telephone systems
* Built-in power up reset circuit
* Four extra function keys: flash, pause, redial and DP or DTMF mixed
dialing
* 4 X 4 (or 2 X 8) keyboard can be used
* Low standby current
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 1 of 16




Silan Microelectronics

SC91215C Datasheet Preview

SC91215C Datasheet

TONE/PULSE DIALER

No Preview Available !

BLOCK DIAGRAM
SC91214/91215 SERIES
ABSOLUTE MAXIMUM RATING (Tamb=25°C, All voltage referenced to VSS, unless otherwise specified)
Characteristics
Power Supply Voltage
Input Voltage
Output Voltage
Output Voltage (DP, XMIT MUTE)
Tone Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
VOUT
VOUT
ITONE
PD
Topr
Tstg
Value
6.0
-0.3~VDD+0.3
-0.3~VDD+0.3
1.2
50
500
-25~+70
-55~+150
Unit
V
V
V
V
mA
mW
°C
°C
Note: Stresses above those listed under “Absolute Maximum Ratings”may cause permanent damage to this
device. These are stress ratings only. Functional operation of this device at these or any other conditions
above those indicated in the operational sections of this specification is not implied or intended. Exposure
to the absolute maximum rating conditions for extended periods may affect device reliability.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 2 of 16



Part Number SC91215C
Description TONE/PULSE DIALER
Maker Silan Microelectronics
Total Page 16 Pages
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SC91215C Datasheet PDF





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