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SC91215 데이터시트 PDF




Silan Microelectronics에서 제조한 전자 부품 SC91215은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 SC91215 자료 제공

부품번호 SC91215 기능
기능 TONE/PULSE DIALER
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SC91215 데이터시트, 핀배열, 회로
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




SC91215 pdf, 반도체, 판매, 대치품
SC91214/91215 SERIES
(Continued)
Characteristics
Break Time
Symbol
TB
Inter-digit Pause Time
Pause Time
Auto-redial Break Time
Delay Time Key Valid to Signal
Out
Key-in Debounce
Key Release Debounce Time
Key-in Tone Duration
Key-in Tone Frequency
Minimum Tone Duration Time
Min. Tone Inter-digit Pause
Redial Tone Duration
Redial Tone Inter-digit Duration
TIDP
TPAU
TAOBK
TD
TKD
TKLD
TKTD
FKT
TMFD
TTIDP
TMFDR
TTIDPR
Conditions
10pps
M/B=1/2
M/B=2/3
20pps
M/B=1/2
M/B=2/3
10pps
20pps
Min.
Typ.
66.6
60.0
33.3
30.0
824
458
2.2
2.2
0
21
5.2
23
437
90
100
90
100
Max.
Unit
ms
ms
sec
sec
ms
ms
ms
ms
Hz
ms
ms
ms
ms
COMPARISONS OF SPECIFIED VS ACTUAL TONE FREQUENCIES (fosc=3.579MHz)
R/C
Spec.
Actual
Error (%)
Unit
R1
697
699.1
+0.31
Hz
R2
770
771.5
+0.19
Hz
R3
852
852.3
+0.03
Hz
R4
941
942.0
+0.10
Hz
C1
1,29
1,215.7
+0.57
Hz
C2
1,336
1,331.7
-0.32
Hz
C3
1,477
1,471.9
-0.35
Hz
KEYBOARD ASSIGNMENT
1) */T: In PULSE mode this key works as PulseDTMF key (T key). In DTMF mode the key works as * key.
*/T key will occupy one memory digit in either use.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 4 of 16

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SC91215 전자부품, 판매, 대치품
SC91214/91215 SERIES
(Continued)
SC9121
4A
9
Pin No.
SC9121 SC9121
4B 4C
11 10
SC9121
4D
12
(N.A.)
(N.A.)
1
1
Pin
Name
DP
HFO
Description
Dialing pulse output
This is an N-channel open drain output. The
normal output will be “ON”during break an “OFF”
during make in the PULSE DIALING mode.
Hands-Free Control I/O pins
These pins enable and disable the Hands-Free
control function. When input pin HFI goes low, the
Hands-Free Control state is toggled on. The status
of the Hands-Free control state is listed in the
following table:
18 20 HFI
7 7 8 8 TONE Tone dialing output
When a valid key-press is detected in the DTMF
mode, appropriate low group and high group,
frequencies the dual tone output. TONE output is
in the “OFF”state in PULSE mode.
8 8 9 9 XMITMUTE Dialing transmission mute output
This is an N-channel open drain output. The
XMITMUTE is normally “OFF”. During pulse or DTMF
dialing this output is “ON”.
(N.A.)
9
(N.A.)
10 MODE Mode output pin
OUT This is an N-channel, open drain output. It is “ON”
during tone output and “OFF”during pulse output.
13 15 14 16 R1 Keyboard pins
14 16 15 17 R2 This input serves as the interface to an XY matrix
15 17 16 18 R3 keyboard. On a 4 X 4 matrix keyboard, the input
16
18
17
19
from the fourth column, C4 , should be connected
R4
10
12
11
13
to VSS.
C1
11 13 12 14 C2
12 14 13 15 C3
6 6 7 7 VDD Power supply pins
5 5 6 6 VSS These devices are designed to operate from 2.0V
to 5.5V.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 7 of 16

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