SC9302D [SILAN]
1-MEMORY/2-MEMORY TONE/PULSE DIALER; 1内存/ 2内存音频/脉冲拨号器
| 型号： | SC9302D |
| 厂家： | 
SILAN MICROELECTRONICS JOINT-STOCK |
| 描述： | 1-MEMORY/2-MEMORY TONE/PULSE DIALER |
| 文件： | 总39页 (文件大小：1534K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
1-MEMORY/2-MEMORY TONE/PULSE
DIALER
DESCRIPTION
The SC9302 series tone/pulse dialers are CMOS LSIs for the
telecommunication system. They are designed to meet various
dialing specifications through resistor options matrix.
The SC9302 series tone/pulse dialers are offered in four different
versions. They are SC9302X normal version, SC9302/F/G/H simple
version, SC9302XT key-tone version and SC9302XLT key-tone/lock
functions version. The SC9302X normal version provides the pin-
selected lock function; the SC9302XT version provides the key-tone
function; the SC9302XLT version provides both the key-tone function
and key board-operated IDD lock function. All of the above three
versions also supply the following functions: Hold-line, Hand-free and
LCD dialing number display interface, all of which are suitable for
feature phone applications. However, the SC9302F/G/H version is
simpler than the other three versions. It provides only a redialing
memory for a simple low-cost system application.
SDIP-24
ꢀ
SC9302D Package
FEATURES
*Universal specification
*Hand-free control
*Hold-line control
*Operating voltage: 2.0V~5.5V
*Low stand-by current
*Pause, P→T can be saved for redialing
*Lock function
*Low memory retention current:0.1µA(Typ.)
*Tone/pulse switchable
*Key tone function
*Interface with LCD driver
*32 digits for redialing
*Resistor options:
-M/B ratio
*32 digits for the SA memory dialing
*One-key redialing
-Flash function and flash time
-Pause and P→T duration
-Pulse number
*Pause and P→T key for PBX
*4x4 keyboard matrix
-Keyboard operated IDD lock function
ꢀ
ꢀ
*3.58MHz crystal or ceramic resonator
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
1
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
PIN CONFIGURATIONS
SC9302X NORMAL VERSION
HDO
HDI
C1
1
2
24
HDO
HDI
C1
1
2
22
23 R4
22 R3
21 R2
20 R1
21 R4
20 R3
19 R2
18 R1
C1
C2
1
2
20 R4
19 R3
18 R2
17 R1
C2
C3
3
C1
C2
1
2
3
4
5
6
7
8
9
18 R4
17 R3
16 R2
15 R1
C2
3
4
C3
4
C3
3
C4
5
LOCK
MODE
C3
C4
5
C4
4
6
19
18
17
16
15
14
13
LOCK
X1
MODE
LOCK
X1
MODE
X1
X2
DTMF
C4
6
17
16
15
14
13
12
5
16
15
7
LOCK
X1
MODE
DTMF
DTMF
14
13
7
6
8
PO
DTMF
X2
8
X2
7
14 PO
13 HKS
XMUTE
9
PO
HKS
VSS
12 PO
11 HKS
XMUTE
8
VDD
X2
XMUTE
9
11
10
12
HKS
VSS
VSS
V
DD
HFI
HFO
VDD
XMUTE
11
10
9
12
11
VSS
VDD
HFI
HFO
DOUT
CLOCK
DOUT
CLOCK
10
10
SC9302A
DIP-18
SC9302B
SDIP-22
SC9302C
DIP-20
SC9302D
SDIP-24
SC9302XT/XLT VERSION
HDO
24
HDI
C1
C2
C3
C4
KT
1
2
HDO
HDI
C1
C2
C3
C4
KT
X1
1
2
22
23 R4
22 R3
21 R2
20 R1
21 R4
20 R3
19 R2
18 R1
C1
C2
C3
C4
KT
X1
1
2
20 R4
3
C1
C2
C3
1
2
3
4
5
6
7
8
9
18 R4
17 R3
16 R2
15 R1
3
19 R3
18 R2
17 R1
4
4
3
5
MODE
5
4
6
19
18
17
16
15
14
13
MODE
MODE
X1
X2
DTMF
PO
C4
KT
6
17
5
16
15
7
MODE
DTMF
DTMF
14
13
7
16
15
14
13
12
6
8
X1
X2
DTMF
X2
8
X2
7
14 PO
13 HKS
XMUTE
9
PO
HKS
V
SS
12 PO
11 HKS
XMUTE
9
XMUTE
8
11
10
12
VDD
HKS
V
SS
V
SS
V
DD
HFI
HFO
VDD
XMUTE
11
10
9
12
11
V
SS
VDD
HFI
HFO
DOUT
CLOCK
DOUT
CLOCK
10
10
SC9302AT/ALT
DIP-18
SC9302BT/BLT
SDIP-22
SC9302CT/CLT
DIP-20
SC9302DT/DLT
SDIP-24
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
2
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
SC9302F/G/H SIMPLE VERSION
C1
C2
C3
C4
NC
X1
1
2
3
4
5
6
7
8
9
18 R4
17 R3
16 R2
15 R1
C1
C2
C3
X1
1
2
3
4
5
6
7
8
16 R4
15 R3
14 R2
13 R1
MODE
14
13
DTMF
MODE
X2
12
DTMF
X2
12 PO
11 HKS
XMUTE
11
V
SS
XMUTE
10 PO
V
SS
VDD
VDD
10
9
HKS
SC9302F/H
DIP-18
SC9302G
DIP-16
BLOCK DIAGRAM
DOUT
CLOCK
DTMF
PO
C1
FSM
Control
Check
Tone Out
Pulse Out
C2
Key
Column
WRM
Counter
Tone
Encoder
SRAM
Key
Function
Encoder
C3
C4
R1
XMUTE
ADDRL
HKS
HFI
Converter
Mode In
HD/HF
Encoder
HDI
R2
Key
Row
HDO
R3
HFO
R4
Clock
Control
Flash
Debounce
MODE
X1
M/B
Timer
Clock
Generator
Key-tone
Generater
Divider
KT
X2
LOCK
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
3
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
KEYBOARD INFORMATION
SC9302X and SC9302XT
SC9302XLT
C4 C3
C1
C2
C3
C4
C2
C1 HKS
R1
R2
R3
R4
R1
R2
R3
R4
1
4
2
5
8
0
3
6
9
#
SA
F
1
4
2
5
8
0
3
6
9
#
SA ST
F
P
R
7
P
7
*/T
R
*/T
SC9302F
SC9302H
C1
C2
C3
C4
C1
C2
C3
C4
R1
R2
R3
R4
1
4
2
5
8
0
3
6
9
#
R1
1
4
2
5
8
0
3
6
9
#
R2
R3
R4
F
P
R
F
7
7
*/T
*/T
R/P
SC9302G
C1
C2
C3
HKS
1
4
2
5
8
0
3
6
9
#
R1
R2
R3
R4
F
P
R
7
*/T
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
4
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
SELECTION TABLE
Function
Lock Function
Pin Keyboard
Selection Operated
SC9302X (Normal version)
LCD
Memory
No.
Keytone
Hold-line Hand-free
Package
Interface
Item
SC9302A
SC9302B
SC9302C
SC9302D
--
--
--
--
√
√
√
√
--
--
--
--
--
√
--
√
--
--
√
2
2
2
2
DIP-18
SDIP-22
DIP-20
--
√
--
√
√
SDIP-24
SC9302XT(Key-tone version)
SC9302AT
SC9302BT
SC9302CT
SC9302DT
√
√
√
√
--
--
--
--
--
--
--
--
--
√
--
√
--
--
√
2
2
2
2
DIP-18
SDIP-22
DIP-20
--
√
--
√
√
SDIP-24
SC9302XLT (Key-tone/Lock function version)
SC9302ALT
SC9302BLT
SC9302CLT
SC9302DLT
√
√
√
√
--
--
--
--
√
√
√
√
--
√
--
√
--
--
√
2
2
2
2
DIP-18
SDIP-22
DIP-20
--
√
--
√
√
SDIP-24
SC9302F/G/H (Simple version)
SC9302F
SC9302G
SC9302H
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
1
1
1
DIP-18
DIP-16
DIP-18
ABSOLUTE MAXIMUM RATINGS
(Tamb=25°C, fosc=3.5795MHz,unless otherwise specified)
Characteristic
Supply Voltage
Symbol
VDD
Value
-0.3 ~ 5.5
Unit
V
Input Voltage
VIN
Vss-0.3V ~ VCC+0.3V
-20 ~ +75
V
Operating Temperature
Storage Temperature
Topr
Tstg
°C
°C
-50 ~ +125
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
5
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
ELECTRICAL CHARACTERISTICS
(Tamb=25°C, fosc=3.5795MHz,unless otherwise specified)
Test Conditions
Parameter
Operating Voltage
Symbol
Min
Typ
Max
Unit
V
Condition
--
DD
VDD
--
2
--
5.5
1
V
Off-hook
Pulse
--
0.2
mA
Operating Current
IDD
2.5V
Keypad entry
No load
Tone
--
--
0.6
--
2
1
mA
On-hook, no load,
Stand-by Current
ISTB
1V
µA
No entry
Memory Retention Voltage
Memory Retention Current
Input Low Voltage
VR
IR
--
1V
--
--
On-hook
--
1
--
--
0.1
--
5.5
0.2
V
µA
V
VIL
VIH
Vss
0.2 VDD
VDD
Input High Voltage
--
--
0.8 VDD
--
V
V XMUTE =12V,
Leakage current
Sink Current
XMUTE
IXMO
--
--
--
1
µA
No entry
V XMUTE =0.5V
XMUTE
IOLXM
I HKS
2.5V
2.5V
1
--
--
--
--
0.1
--
mA
µA
V HKS =2.5V
HKS
Pin Input Current
HFI Pull-Low Resistance
RHFI
2.5V VHFI =2.5V
--
200
200
--
kΩ
kΩ
µA
Pull-High Resistance
R HDI
VHDI =0V
2.5V
HDI
--
--
Keypad Pin Source Current
Keypad Pin Sink Current
HFO Pin Source Current
HFO Pin Sink Current
IOH1
IOL1
IOH2
IOL2
IOH3
IOL3
2.5V VOH =0V
2.5V VOL =2.5V
2.5V VOH =2V
2.5V VOL =0.5V
2.5V VOH =2V
2.5V VOL =0.5V
-4
200
-1
1
-40
--
400
--
µA
--
mA
mA
mA
mA
--
--
HDO Pin Source Current
HDO Pin Sink Current
-1
1
--
--
--
--
Control key
--
0.2
1
--
Pause Time After Flash
TFP
--
s
Digit key
--
--
One-key Redialing Pause Time
Key-in Debounce Time
Break Time for One-key Redialing
Key-tone Duration
TRP
TDB
--
--
--
--
--
--
One-key redialing
--
1
--
s
ms
s
--
--
20
1.2
--
--
TBRK
TKT
One-key redialing
--
--
--
34
1.2
--
ms
KHz
Key-tone Frequency
FKTC
Fosc
--
--
--
System Frequency
Crystal =3.5795MHz
3.5759 3.5795 3.5831 MHz
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
6
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
PULSE MODE ELECTRICAL CHARACTERISTICS
(Tamb=25°C, fosc=3.5795MHz,unless otherwise specified)
Test Conditions
Parameter
Symbol
Min
Typ
Max Unit
V
Condition
DD
Output Source Current
Output Sink Current
PO
IPOH
IPOL
2.5V VOH =2V
2.5V VOL =0.5V
MODE pin is
-0.2
0.2
--
--
--
mA
mA
PO
0.6
--
--
--
10
20
--
--
--
Pulse Rate
PR
--
connected to VDD
pps
MODE pin is opened.
A resistor is linked
33:66
between
and
.
.
R2
C1
Make/Break Ratio
M/B
--
%
No resistor is linked
between and
--
--
--
40:60
--
--
--
R2
C1
40(10pps)
20(20pps)
33(10pps)
17(20pps)
800
M/B ratio =40:60
M/B ratio =33:66
Pre-digit-pause Time
Inter-digit-pause Time
Pulse Make Duration
TPDP
TIDP
TM
--
--
--
ms
ms
ms
Pulse rate =10pps
Pulse rate =20pps
A resistor is linked
--
--
--
--
500
33(10pps)
17(20pps)
40(10pps)
20(20pps)
66(10pps)
33(20pps)
60(10ps)
30(20pps)
--
--
--
--
--
--
--
--
between
and
.
.
.
.
R2
C1
No resistor is linked
between
and
R2
C1
C1
A resistor is linked
between and
R2
Pulse Break Duration
TB
--
ms
No resistor is linked
between and
R2
C1
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
7
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
TONE MODE ELECTRICAL CHARACTERISTICS
(Tamb=25°C, fosc=3.5795MHz,unless otherwise specified)
Test Conditions
Parameter
Symbol
Min
Typ
Max Unit
V
Condition
DD
DTMF Output DC Level
DTMF Sink Current
VTDC
ITOL
VTAC
RL
--
--
0.45VDD
--
--
0.7VDD
--
V
2.5V VDTMF =0.5V
0.1
0.12
5
mA
DTMF Output AC Level
DTMF Output Load
--
Row group, RL =5kΩ
0.155
--
0.18 Vrms
2.5V THD ≤ -23dB
2.5V Row group = 0dB
2.5V RL =5kΩ
--
3
kΩ
dB
dB
Column Pre-emphasis
Tone Signal Distortion
ACR
THD
1
2
--
-30
82.5
100
85.5
106
-23
--
Others
9302G
Others
9302G
--
Minimum Tone Duration
Minimum Inter-tone Pause
THD (Distortion)(dB)=20log
TTMIN
--
--
Auto-redial
ms
ms
--
--
--
--
TITPM
Auto-redial
--
--
2
1
2
2
2
n
2
i
2
h
(
V
+ V +...+ V
/
V
+ V
)
Vi, Vh: Row group and column group signals
V1,V2, …Vn: Harmonic signals (BW=300Hz~3500Hz)
APPROXIMATE INTERNAL CONNECTION CIRCUITS
CMOS IN
Pull-High
CMOS IN/OUT
DD
NMOS OUT
CMOS IN
CMOS OUT
DD
V
V
VDD
CMOS IN
Pull-Low
OSCILLATOR
X1
X2
10MΩ
20pF
10pF
EN
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
8
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
PIN DESCRIPTION
Internal
Pin Name
I/O
Description
Connection
These pins construct a 4x4 keyboard matrix to perform the keyboard
input detecting and dialing specification setting functions, when on-hook
(
=high) all the pins are set to high. While off-hook the column
HKS
group (
~
C1 C4
) stays low and the row group (
~
R1 R4
) is set to high
for key input detecting.
~
C1 C4
CMOS
An inexpensive single contact 4x4 keyboard can be an input device.
Pressing a key connects a single column to a single row, and actuates
the system oscillator to result in a dialing signal output. If more than two
keys are pressed at the same time, no response can be brought about.
The key-in debounce time is 20ms. Refer to the keyboard table for
keyboard arrangement and to the functional description for dialing
specification selection.
I/O
~
R1 R4
IN/OUT
The system oscillator consists of an inverter, a bias resistor and the
necessary load capacitor on chip. Connecting a standard 3.579545MHz
X1
X2
I
OSCILLATOR crystal or ceramic resonator to X1 and X2 terminals can implement the
oscillator function. The oscillator is turned off in the stand-by mode, and
is actuated whenever a keyboard entry is detected.
O
The
is an NMOS open drain structure pulled to VSS during
XMUTE
dialing signal transmitting. Otherwise, it is an open circuit. The
XMUTE
O
NMOS OUT
is used to mute the speech circuit when transmitting the dial
XMUTE
signal.
This pin is used to monitor the status of the hook-switch and its
combination with HFI/
break the line.
can control the
pin output to make or
PO
HDI
=VDD: On-hook state (
=low). Except HFI/
(hand-free
HDI
HKS
HKS
PO
I
CMOS IN
/ hold-line control input), other functions are all disabled.
=VSS: Off-hook state ( =high). The chip is in the stand-by
HKS
PO
mode and ready to receive the key input.
(to be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
9
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
(continued)
This pin is a CMOS output structure, it receives
and HFO/HDO
HKS
signals to control the dialer so as to connect or disconnect the
telephone line.
outputs low to break line when
is high (on-hook) and
PO
HKS
PO
O
CMOS OUT
HFO/HDO is low.
outputs high to make line when
is low (off-
HKS
PO
hook) or HFO is high or HDO is high.
During the off-hook state, the pin also outputs the dialing pulse train in
pulse mode dialing. While in the tone mode, this pin is always high.
This is a three-state input/output pin, provided to the user for selecting a
dialing mode among Tone/20pps/10pps.
MODE=VDD: Pulse mode, 10pps.
MODE=OPEN: Pulse mode, 20pps.
CMOS
MODE
I/O
MODE=VSS: Tone mode.
IN/OUT
During the pulse mode dialing, switching this pin to the tone mode
changes the following entrance of digits to the tone mode. When the
chips are working in the tone mode, the switching from tone to the pulse
mode will be recognized.
This pin is active only when the chip transmits tone dialing signals.
Otherwise, it always outputs low. The pin outputs tone signals to drive
the external transmitter amplifier circuit. The load resistor should not be
less than 5kΩ.
DTMF
O
CMOS OUT
This pin is a schmitt trigger input structure. Active low. Applying a
negative going pulse to this pin can toggle the HDO output once.
An external RC network is recommended to use for the input
debouncing. The pull-high resistance is 200kΩ typically.
CMOS IN
Pull-High
HDI
I
The HDO is a CMOS output structure. Its output is toggle controlled by
a negative transition on
. When HDO is toggled to high,
keeps
PO
HDI
high to hold the line. The hold function can be released by setting HFO
high or by an on-off hook operation or by another input. The HDO
HDO
O
CMOS OUT
HDI
pin can directly drive the melody generator to produce hold-line
background melody. Refer to the functional description for the hold-line
function.
Key-tone output pin. It outputs 1.2kHz tone carrier when any key is
KT
O
CMOS OUT
pressed in the pulse mode or when the function keys are pressed in the
tone mode.
(to be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
10
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
(continued)
This pin is a schmitt trigger input structure. Active high. Applying a
positive going pulse to HFI can toggle the HFO once and hence control
the hand-free function. The pull-low resistance of HFI is 200KΩ
typically.
CMOS IN
HFI
I
Pull-Low
An external RC network is recommended to use for the input
debouncing.
The HFO is a CMOS output structure. Its output is toggle controlled by
a positive transition on HFI pin. When HFO is high, the hand-free
function is enabled and
outputs high to connect the line.
PO
HFO
O
CMOS OUT
The hand-free function can be released by setting HDO high or by an
on-off-hook operation or by another HFI input. Refer to the functional
description for the hand-free functional operation.
This is a three-state input/output pin, provided to the user for controlling
the long distance call function with a lock-switch.
LOCK
I/O
CMOS IN/OUT LOCK=OPEN: Normal dialing (no lock).
LOCK=VDD: “0,9” is inhibited for use as the first key input.
LOCK=VSS: “0” is inhibited for use as the first key input.
This is an NMOS open drain output pin. It outputs the BCD code of the
dialing digits to the LCD driver chip (SC16XX series) or µC for dialing
number display. Refer to the functional description for the detailed
timing.
DOUT
O
O
NMOS OUT
NMOS OUT
NMOS open drain output. When dialing, it outputs a series of pulse train
for the DOUT data synchronization. The DOUT data is valid at the falling
edge of clock.
CLOCK
VDD
VSS
I
I
--
--
Positive power supply, 2.0V~5.5V for normal operation.
Negative power supply.
FUNCTION DESCRIPTIONS
1. KEYBOARD MATRIX
The
~
C1 C4
and
~
R1 R4
make up of a keyboard matrix. Together with a standard 4x4 keyboard, the
keyboard matrix is used for dialing entrance. In addition, the keyboard matrix provides resistor option for different
dialing specification selections. The keyboard arrangement for each of the SC9302 series are listed in KEYBOARD
INFORMATION.
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2.TONE FREQUENCY
Tone
Output Frequency (Hz)
Specified Actual
%Error
Name
R1
697
770
699
766
+0.29%
-0.52%
-0.59%
+0.74%
+0.50%
-0. 30%
-0. 34%
R2
R3
852
847
R4
C1
C2
C3
941
948
1209
1336
1477
1215
1332
1472
% Error does not contain the crystal frequency drift.
3. DIALING SPECIFICATION SELECTION
C1
C2
C3
C4
R1
RK21
RK31
RK41
By means of adding resistors across keyboard matrix
pins, various dialing specifications can be selected. The
allowable option resistor connections are shown right.
R2
R3
R4
R
R
R
K12
K13
K14
All the resistors are 330kΩ. The resistor option functions and the default specifications (without option resistors)
are listed below.
Option
Resistor
RK12
Option Function
Default (No Resistor)
Make/Break Ratio Selection
40:60
RK13
Flash Function And Flash Time Flash = control function
Selection
Flash time = 600ms
RK14
RK21
Pause & PꢀT Duration Selection
Pulse Number Selection Or IDD
Lock Selection
TP = 3.6s , TPꢀT = 3.6s
RK31
N
or Keyboard operated
lock
RK41
4. M/B RATIO SELECTION TABLE
RK13
No
M/B Ratio(%)
40:60
Yes
33.3:66.6
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5. FLASH FUNCTION/TIME(DURATION) SELECTION TABLE
RK13
RK14
Flash Function
Flash
Time
(TF)
No
No
Control
Digit
600ms
600ms
98ms
No
Yes
No
Yes
Yes
Digit
Yes
Digit
300ms
6. PAUSE AND PꢀT DURATION SELECTION TABLE
RK21
No
TP (sec)
TPꢀT (sec)
3.6
2
3.6
1
Yes
7. PULSE NUMBER SELECTION TABLE
• This table shows pulse number selections for SC9302X AND SC9302XT. The table for SC9302XLT is used to
select IDD lock function.
RK31
No
RK41
No
Pulse Number
N
N + 1
10-N
--
No
Yes
No
Yes
Yes
Yes
• SC9302G has different selection method listed in the table below.
RK31
No
Pulse Number
N
Yes
10-N
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8. PULSE NUMBER TABLE
Keypad
Output Pulse Number
Digit Key
Normal N
New Zealand (10-N)
Sweden/Denmark(N+1)
1
2
1
9
2
2
8
3
3
3
7
4
4
4
6
5
5
5
5
6
6
6
4
7
7
7
8
3
2
8
9
8
9
9
1
10
0
10
10
1
*/T
#
PꢀT
Ignored
PꢀT
Ignored
PꢀT
Ignored
9. HAND-FREE FUNCTION OPERATION
• Hand-free function table
Current State
Input
Next State
HKS
HKS
HDI
HFO
L
HDO
X
HFI
HFO
L
HDO
An
L
H
H
H
H
L
H
H
H
H
H
H
H
H
L
An
An
An
L
L
X
H
H
X
X
L
An
L
L
L
L
L
L
X
An
An
An
H
L
An
L
L
L
X
H
L
H
X
L
L
An
An
H
L
X
L
L
An
L
X
X
L
An
H: Logic HIGH
X: Don’t care
: Falling edge
L: Logic LOW
An: Unchanged
: Rising edge
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• Hand-free function execution
When HFO is low, a rising edge triggers the HFI, asserting the Hand-free function (HFO becomes high).
• Reset Hand-free function
When HFO is high, the Hand-free function is enabled and can be reset by:
* Off-hook
* Applying a rising edge to HFI
* Changing the HDO pin from low to high
10. HOLD-LINE FUNCTION OPERATION
• Hold-line function execution
When HDO is low, a falling edge triggers the
, asserting the Hold-line function (HDO becomes high). The
HDI
remains low when HDO is high.
XMUTE
• Reset Hold-line function
When HDO is high, the Hold-line function is enabled and can be reset by:
* Off-hook.
* Applying a falling edge to
.
HDI
* Changing the HFO pin from low to high.
• Hold-line function table
Current State
Input
Next State
HKS
HKS
An
An
An
L
HDI
HDO
HFO
HFI
HDO
HFO
H
H
H
H
L
L
X
L
H
L
H
L
An
L
H
X
L
X
L
L
L
L
L
L
L
L
L
An
L
X
X
X
L
H
H
L
An
An
An
H
L
An
L
L
L
H
L
L
H
X
X
An
An
H
L
X
L
H
H
An
L
X
An
H: Logic HIGH
X: Don’t care
: Falling edge
L: Logic LOW
An: Unchanged
: Rising edge
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11. DOUT BCD CODE
When dialing, the corresponding 4-bit BCD codes are serially presented on DOUT from MSB to LSB. The data of
the DOUT is valid at the falling edge of the CLOCK pin. The following table lists the BCD codes corresponding to the
keyboard input.
Key-In
BCD Code
0001
Key-In
BCD Code
1000
1
2
3
4
5
6
7
8
9
0010
1001
0011
0
1010
0100
*/T
#
1101
0101
1100
0110
F
1011
0111
P
1110
12. LOCK FUNCTION
The function aims to detect locked dialing number to prevent a long distance call. The dialing output of the chip is
disabled if the first input key after on-off-hook is the locked number when the lock function is enabled. The lock
function selection is listed below.
The SC9302X version is the pin-selected type; on the other hand, the SC9302XLT is the key-board operated type.
However, the SC9302XT version does not support any lock function.
• SC9302X VERSION
LOCK Pin
OPEN
VDD
Function
Normal dialing (no lock)
“0, 9” is inhibited
“0” is inhibited
Vss
• SC9302XLT VERSION
RK31
No
RK41
Function
Keyboard operated IDD lock
Lock 0
No
Yes
No
No
Yes
Yes
Lock 0,9
Yes
All keys are locked
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13. KEY DEFINITION
Key Name
0,1,2,3,4,5,6,7,8,9
numerical keys
Function
These are dialing number input keys for both the pulse mode and the tone mode
operations.
This key executes the PꢀT function and waits a TPꢀT duration in the pulse mode. On
the other hand, the */T key executes the * function in the tone mode.
This is a dialing signal key for the tone mode only, no response in the pulse mode.
Pressing this key can save the preceding dialing telephone numbers. The saved
number is redialed if it is pressed again. SA will also redial the saved number if it is the
first key depressed at the off-hook state. During the dialing signal transmission, the SA
key is inhibited.
*/T
#
SA
The flash key can be selected as a digit or a control key by the option resistors
RK13&RK14. Pressing the flash key will force the
pin to be “low” for the TF duration
PO
F
and is then followed by TFP(sec). TF can also be selected by RK13, RK14
Pause key. The execution of the pause key pauses the output for the TP duration. TP
can be selected by RK21
.
P
.
R
Redial key. It executes the redialing as well as one-key redial function.
This key can store lock number with personal code in IDD lock operation.
Redial and pause function key. If it is pressed as the first key after off-hook, this key
executes the redial function. Otherwise, it works as the pause key.
ST
R/P
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14. KEYBOARD OPERATION
The following operations are all described under an on-off-hook or on-hook with the hand-free active condition.
• NORMAL DIALING
---Pulse Mode
---Tone Mode
a) without */T
a) without */T
Keyboard input: D1 D2 … Dn
Keyboard input: D1 D2 … Dn
Dialing output: D1 D2 … Dn
Dialing output: D1 D2 … Dn
RM: D1 D2 … Dn
RM: D1 D2 … Dn
SAM: Unchanged
SAM: Unchanged
b) with */T
b) with */T
Keyboard input: D1 D2 … Dn */T Dn+1 … Dm
Keyboard input: D1 D2 … Dn */T Dn+1 … Dm
Dialing output: D1 D2 … Dn TPꢀT Dn+1…Dm
Dialing output: D1 D2 … Dn * Dn+1…Dm
Pulse
RM: D1 D2 … Dn */T Dn+1…Dm
SAM: Unchanged
Tone
RM: D1 D2 … Dn * Dn+1…Dm
SAM: Unchanged
Note : The maximum capacity of the RM memory is 32 digits. When over 32 digits are entered, the signal is
transmitted but the redial function is inhibited.
• REDIAL
---Pulse Mode
---Tone Mode
a) without */T
a) without */T
RM content: D1 D2 … Dn
Keyboard input: R (or R/P)
Dialing output: D1 D2 … Dn
RM: Unchanged
RM content: D1 D2 … Dn
Keyboard input: R (or R/P)
Dialing output: D1 D2 … Dn
RM: Unchanged
SAM: Unchanged
SAM: Unchanged
b) with */T
b) with */T
RM content: D1 D2 … Dn */T Dn+1…Dm
Keyboard input: R (or R/P)
Dialing output: D1 D2 … Dn TPꢀT Dn+1…Dm
RM content: D1 D2 … Dn */T Dn+1…Dm
Keyboard input: R (or R/P)
Dialing output:
Pulse
Tone
D1 D2 … Dn * Dn+1…Dm
RM: Unchanged
RM: Unchanged
SAM: Unchanged
SAM: Unchanged
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• ONE-KEY REDIAL
---Pulse Mode
---Tone Mode
a) without */T
a) without */T
Keyboard input: D1 D2 … Dn
R
Keyboard input: D1 D2 … Dn R
Dialing output: D1 D2 … Dn TBRK TRP D1 D2 … Dn
Dialing output: D1 D2 … Dn TBRK TRP D1 D2 … Dn
RM: D1 D2 … Dn
SAM: Unchanged
b) with */T
RM: D1 D2 … Dn
SAM: Unchanged
b) with */T
Keyboard input: D1 D2 … Dn */T Dn+1 … Dm
Dialing output: D1 D2 … Dn TPꢀT Dn+1…Dm TBRK
Pulse Tone
TRP D1 D2 … Dn TPꢀT Dn+1…Dm
R
Keyboard input: D1 D2 … Dn */T Dn+1 … Dm
Dialing output: D1 D2 … Dn * Dn+1…Dm TBRK
TRP D1 D2 … Dn * Dn+1…Dm
R
RM: D1 D2 … Dn * Dn+1…Dm
Pulse
RM: D1 D2 … Dn */T Dn+1…Dm
SAM: Unchanged
Tone
SAM: Unchanged
Note: If the dialing number is over 32 digits, the redialing is inhibited and
= VDD.
PO
• SA COPY
---Pulse Mode
---Tone Mode
a) without */T
a) without */T
Keyboard input: D1 D2 … Dn SA
Dialing output: D1 D2 … Dn
RM: D1 D2 … Dn
Keyboard input: D1 D2 … Dn SA
Dialing output: D1 D2 … Dn
RM: D1 D2 … Dn
SAM: D1 D2 … Dn
SAM: D1 D2 … Dn
b) with */T
b) with */T
Keyboard input: D1 D2 … Dn */T Dn+1 … Dm SA
Dialing output: D1 D2 … Dn TPꢀT Dn+1…Dm
Keyboard input: D1 D2 … Dn */T Dn+1 … Dm SA
Dialing output: D1 D2 … Dn * Dn+1…Dm
RM: D1 D2 … Dn * Dn+1…Dm
Pulse
Tone
RM: D1 D2 … Dn */T Dn+1…Dm
SAM: D1 D2 … Dn */T Dn+1…Dm
SAM: D1 D2 … Dn * Dn+1…Dm
Note: The maximum capacity of the RM memory is 32 digits. When over 32 digits plus the “SA” key are entered, the
SAVE function will not be executed, and all the existing data in the save memory will not be changed.
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• SA DIALING
---Pulse Mode
---Tone Mode
a) without */T
a) without */T
SAM content: D1 D2 … Dn
Keyboard input: SA
SAM content: D1 D2 … Dn
Keyboard input: SA
Dialing output: D1 D2 … Dn
RM: Unchanged
Dialing output: D1 D2 … Dn
RM: Unchanged
SAM: Unchanged
SAM: Unchanged
b) with */T
b) with */T
SAM content: D1 D2 … Dn */T Dn+1…Dm
Keyboard input: SA
SAM content: D1 D2 … Dn * Dn+1…Dm
Keyboard input: SA
Dialing output: D1 D2 … Dn TPꢀT Dn+1…Dm
Dialing output: D1 D2 … Dn * Dn+1…Dm
RM: Unchanged
Pulse
Tone
RM: Unchanged
SAM: Unchanged
SAM: Unchanged
• FLASH
---Flash as a digital key
a) The intervenient key
---Flash as a control key
Keyboard input: D1 D2 … Dn F Dn+1 … Dm
Dialing output: D1 D2 … Dn TF TFP Dn+1…Dm
RM: Dn+1…Dm
Keyboard input: D1 D2 … Dn F Dn+1 … Dm
Dialing output: D1 D2 … Dn TF TFP Dn+1…Dm
RM: D1 D2 … Dn
SAM: Unchanged
SAM: Unchanged
b) The first key
Keyboard input: F D1 D2 … Dn
Dialing output:
Note: TF: break a flash time
TF TFP D1 D2 … Dn
RM: Unchanged
SAM: Unchanged
• PAUSE
• NOTE
Keyboard input: D1 D2 … Dn P Dn+1 … Dm
Dialing output: D1 D2 … Dn TP Dn+1…Dm
RM: P Dn+1…Dm
RM: Redial memory
SAM: Save dialing memory
D1 D2 … Dn: 0~9
Dn+1…Dm: 0~9, *, #
SAM: Unchanged
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• IDD lock operation by the keyboard (2 lock numbers, 3 digits/number at maximum)
---Personal / lock No.1 / Lock No.2 input operation
a) Personal code doesn’t exist
Stores Personal Code: ST D1 D2 D3 ST * 0
Stores Lock No.1: ST D4 D5 D6 ST * 1
Stores Lock No.2: ST D7 D8 D9 ST * 2
b) Personal code exist
Changes Personal Code: ST D1 D2 D3 ST # ST D4 D5 D6 ST * 0
(Old personal code) (New personal code)
Changes Lock No.1: ST D1 D2 D3 ST # ST D4 D5 D6 ST * 1
(personal code)
Changes Lock No.2: ST D1 D2 D3 ST # ST D7 D8 D9 ST * 2
(personal code) (Lock No.2)
Changes Personal Code, Lock No.1 and Lock No.2 at one time
ST D1 D2 D3 ST # ST D4 D5 D6 ST * 0 (continued)
(Lock No.1)
(Old personal code) (New personal code)
ST D7 D8 D9 ST # ST D10 D11 D12 ST * 2
(Lock No.1)
(Lock No.2)
---Personal / lock No.1 / Lock No.2 cancel operation
Cancels Personal Code: ST D1 D2 D3 ST # ST # 0
Cancels Lock No.1: ST D1 D2 D3 ST # ST # 1
Cancels Lock No.2: ST D1 D2 D3 ST # ST # 2
---Temporary release both of the lock numbers (Lock No.1, Lock No.2):
ST D1 D2 D3 ST # Dm Dm+1 Dm+2 Dl…Dn
(Personal code)
Note: D1~D12=0~9
Dm Dm+1 Dm+2 = 0~9
Dl…Dn = 0~9, *, #
• Note:
RM: Redial memory
SAM: Save dialing memory
D1 D2…Dn: 0~9
Dn+1…Dm: 0~9, *, #
Dm+1…Dl: 0~9, *, #
Dl+1…Dk: 0~9, *, #
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OPERATION TIMING
1. NORMAL DIALING
• PULSE MODE
High impedance
HKS
D1
D2
R
KEY IN
TDB
TDB
TDB
Others
XMUTE
TIDP-T
M
SC9302G
XMUTE
TPDP
TPDP
TM
T
IDP
TIDP-T
M
TIDP-TM
PO
DTMF
KT
1.2KHz Carrier
TKT
TKT
TKT
TIDP-TM
X2
20ms
20ms
• TONE MODE
High impedance
HKS
KEY IN
XMUTE
PO
D1
D2
R
TDB
T
DB
TITPM
TITPM
TITPM
DTMF
KT
TITPM
T
TMIN
X2
20ms
20ms
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2. DIALING WITH PAUSE KEY
• PULSE MODE
High impedance
HKS
D1
D2
P
D3
KEY IN
T
B
D
TP+TPDP
Others
XMUTE
TIDP-T
M
TIDP-TM
SC9302G
XMUTE
TIDP
T
M
TPDP
TM
PO
DTMF
KT
1.2KHz carrier
T
KT
TKT
X2
20ms
• TONE MODE
High impedance
HKS
KEY IN
XMUTE
D1
D2
P
D3
T
DB
TP
PO
TITPM
TITPM
TITPM
DTMF
TTMIN
KT
X2
20ms
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3. FLASH KEY OPERATION
High impedance
HKS
F
KEY IN
T
D
B
XMUTE
PO
TF
TFP
DTMF
KT
1.2KHz Carrier
K
T
T
X2
20ms
4. PULSEꢀTONE OPERATION
High impedance
HKS
D1
D2
*/T
D3
KEY IN
T
B
D
T
P
ID
T
>T
P--
XMUTE
PO
T
P
PD
TIDP+TPDP
TITP
M
DTMF
KT
T
TMI
1.2KHz Carrier
N
TK
T
X2
20ms
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5. ONE KEY REDIAL OPERATION
High impedance
HKS
D1
D2
R
KEY IN
TD
TITP
TD
TITP
TD
TITP
B
M
B
M
B
M
XMUTE
PO
T
M
ITP
TRP
(1 secs)
TBRK(2 secs)
DTMF
KT
TK
T
X2
20ms
6. CLOCK & DOUT OPERATION
High impedance
HKS
KEY IN
XMUTE
PO
D1
T
B
D
T
P
PD
TB
TM
TKT (34ms)
1.2kHz Carrier
KT
CLOCK
FCLOCK=2.4kH
z
DOUT
Data
X2
20ms
Note: D1=D3=3, D2=2.
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TYPICAL APPLICATIONS
1. SC9302A (DIP-18)
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2. SC9302B (SDIP-22)
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3. SC9302C(DIP-20)
IN4148
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4. SC9302D (SDIP-24)
1 0 0 µ F
47kΩ
1.5kΩ
47kΩ
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5. SC9302AT/ALT (DIP-18)
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Semiconductorsꢀ
SC9302 Series
ꢀ
6. SC9302BT/BLT (SDIP-22)
1 0 0 µ F
47kΩ
1.5kΩ
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
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2001-11-01ꢀ
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Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
7. SC9302CT/CLT (DIP-20)
IN4148
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
32
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
8. SC9302DT/DLT (SDIP-24)
100kΩ
100µF
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
33
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
9. SC9302H (DIP-18)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
34
Silan
Semiconductors
SC9302 Series
10. SC9302G (DIP-16)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
2001-11-01ꢀ
35
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
11. SC9302F (DIP-18)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
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2001-11-01ꢀ
36
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
CHIP TOPOGRAPHY
20
19
18
17
16
21
22
15
14
23
24
1
13
12
11
10
9
2
3
7
8
6
4
5
Chip size: 1.90 x 1.73 mm2
PAD COORDINATES
(Unit: µm)
Pad No.
Symbol
P1
X
Y
Pad No.
13
Symbol
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
X
Y
1
2
-934.05
-956.65
956.65
-668.20
-391.80
-137.60
589.50
846.10
899.15
954.35
927.70
927.70
-225.30
-503.00
-800.20
-879.95
-879.95
-861.45
-845.65
-847.35
-469.80
-283.90
-117.95
71.75
927.70
927.70
890.75
937.55
761.90
363.20
35.90
234.85
463.25
619.10
839.50
875.45
875.45
873.65
873.35
779.70
521.30
244.90
-5.70
P2
14
3
P3
15
4
P4
16
5
P5
17
6
P6
18
7
P7
19
8
P8
20
-679.90
-956.65
-956.65
-956.65
-940.35
9
P9
21
10
11
12
P10
P11
P12
22
23
24
Note: The original point of the coordinate is the die center.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
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2001-11-01ꢀ
37
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
PACKAGE OUTLINE
DIP-16-300-2.54
UNIT:mm
2.54
1.50
15 degree
19.4
0.46
DIP-18-300-2.54
UNIT:mm
2.54
1.50
15 degree
22.95
0.46
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
38
Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
DIP-20-300-2.54
UNIT:mm
2.54
1.50
15 degree
22.95
0.46
SDIP-24-300-2.54
UNIT:mm
2.54
1.50
15 degree
34.50
0.46
ꢀ
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
39
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