SILAN SC91650A, SC91650B, SC91651A, SC91651B, SC91652A Datasheet
...
Silan
Semiconductors
13 MEMORY TONE / PULSE DIALER
WITH REDIAL SAVE HANDFREE &
HOLD FUNCTION
DESCRIPTION
The SC91650A/B, SC91651A/B, SC91652A/B are 13-memory
Tone/Pulse switchable dialer with Last Number Redial(LNB) and
HOLD function, which are fabricated in COMS technology with wide
operating voltage for both tone and pulse mode, and consumes very
low memory retention current in ON-HOOK state.
FEATURES
*13-memory Tone/Pulse switchable dialer
*Three 16-digit one touch memory and ten 16-digit two touch
memory
One 32-digit last number redial memory
One 32-digit SAVE function for storing phone number in off hook
status
Note: only 15-digit/31-digit for Tone mode, 1-digit use to identify
tone mode
*Pulse-to-tone (P→T) is provided for PBX operation
*Flash key is available
*Minimum tone duration is 100ms for SC91650, SC91651 or 91ms
for SC91652
*Minimum intertone pause is 106ms for SC91650, SC91651 or
91ms for SC91652
*Uses 3.579545MHz crystal or ceramic resonator
*Many options can be selected
Mode (10PPS; 20PPS; Tone)
M/B ratio (40:60;33:66)
Pause time (3.6s;2.0s)
Pulse number (n;n+1;10-n)
Flash function (RESET;digit)
(P→T) pause time (3.6s;1.0s)
Flash time (80ms; 93ms; 100ms; 200ms; 300ms; 600ms)
Flash pause time (200ms; 1000ms)
* Redial pause time (1ms)
* Mixed dialing and cascade dialing is provided
* Handfree function is provided for speaker phone application
SC91650/1/2 A/B
DIP-18
DIP-22
*Power on reset circuit is provided
*Hold function is provided
* Keytone is provided
*Packaged in 18-DIP or 22-DIP
ORDERING INFORMATION
SC91650A DIP-18 Package
SC91650B
SC91651A
SC91651B
SC91652A
SC91652B
DIP-22 Package
DIP-18 Package
DIP-22 Package
DIP-18 Package
DIP-22 Package
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
1
Silan
Semiconductors
PIN CONFIGURATIONS
SC91650/1/2 A/B
OSCI
OSCO
XMUTE
V
1
HDI
2
1
C1
C2
2
3
C3
4
C4
5
C5
6
7
8
9
SS
18
17
16
15
14
SC91650/1A
13
12
11
10
R4
R3
R2
R1
MODE
TONE
PO
HKS
V
DD
C1
3
C2
4
C3
5
C4
6
C5
7
OSCI
OSCO
8
9
XMUTE HKS
V
10
SS
HFI
22
21
20
19
18
17
16
SC91650/1B
15
14
13
1211
HDO
R4
R3
R2
R1
MODE
TONE
PO
V
DD
HFO
OSCI
OSCO
XMUTE
V
1
PMUTE
2
1
C1
C2
2
3
C3
4
C4
5
C5
6
7
8
9
SS
18
17
16
15
14
SC91652A
13
12
11
10
R4
R3
R2
R1
MODE
TONE
PO
HKS
V
DD
C1
3
C2
4
C3
5
C4
6
C5
7
OSCI
OSCO
8
9
XMUTE HKS
V
10
SS
HFI
22
21
20
19
18
17
SC91652B
16
15
14
13
1211
KT
R4
R3
R2
R1
MODE
TONE
PO
V
DD
HFO
SELECTION GUIDE
HDI HFI PO PMUTE KT Tone Duration
SC91650A N N Inverter N N 100mS
SC91650B Inverter N N 100mS
SC91651A N N Open drain N N 100mS
SC91651B Open drain N N 100mS
SC91652A N N Open drain N N 91mS
SC91652B N Open drain Y Y 91mS
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
2
Silan
Semiconductors
BLOCK DIAGRAM
COL1
COL2
COL3
COL4
COL5
OSCI
OSCO
ROW1
ROW2
ROW3
ROW4
OSC. DIVIDER
VDD
COLUMN
ROW
KT
XMUTE
INPUT INTERFACE CKT.
INTERFACE CKT.
INTERFACE CKT.
SAVE MEMORY
LNB MEMORY
KERNEL CONTROL CKT.
INPUT INTERFACE CKT.
SC91650/1/2 A/B
HFO
HDO
MEMORY
VDD
PULSE
GENERATOR
DECODER &
DATA LATCH
ROW/COLUMN
PROGRAMMING
COUNTER
D/A CONVERTER
PO
TONE
VDD
HFI
HKS
MODE
HDI
VSS
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
3
Silan
Semiconductors
KEYBOARD ASSIGNMENT
C1 C2 C3 C4 C5
R1
R2
R3
R4
1) */T: In pulse mode, execute P→T function; In TONE mode, execute * key
2) SAVE: SAVE key.
3) F: Flash key
4) RD/P: Redial key/Pause key
5) ST: Store key
6) EMn: One touch memory key
7) A: Auto key for two touch memory
123SAVEEM1
456FEM2
789AEM3
*/T 0 # RD/P ST
DIALING SIGNAL OPTION
The resistor connection between selected Row (or Column) and Vss may select most country telecom
specifications (refer to Row and Column pin description). Those options include M/B ratio, Flash time, pause time
…… , as follows.
a): Make/Break ratio: d): Flash time:
Row1
NR 40:60 NR NR 600
R 33:66 NR R 300
b): Pause time & P→T wait time: R R 200 *80
Row2
NR 3.6 3.6
R 2.0 1.0 e): Dialing out Pulse number:
c): Flash Key function: NR NR n
Column1
* for flash time = 80ms, 200ms only
tp(sec) tpT(sec) *for SC91652 only
NR Reset 0.2/0* R NR 10-n
R Digit 1.0 R R reserved
M/B ratio (%)
Flash key tFP(sec) NR R n+1
SC91650/1/2 A/B
Row3 Row4
R NR 93 *100
Column3 Column4
Flashtime(ms)
Pulse number
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
4
Silan
Semiconductors
Note: 1). NR = No resistor connection to Vss.
2). R = A resistor connection to Vss (820k typically).
3). N = Pressed digit key.
4). The following list is the corresponding pulse (break) numbers that are sent out by pressed the number
keys.
Digit key Normal (n) New Zealand (10-n) Sweden/Denmark (n+1)
11 9 2
22 8 3
33 7 4
44 6 5
55 5 6
66 4 7
77 3 8
88 2 9
99 1 10
010 10 1
*P→T KEY P→T KEY P→T KEY
# ignored ignored ignored
Dialing signal option
SC91650/1/2 A/B
ABSOLUTE MAXIMUM RATINGS
(Tamb=25°C, All voltage referenced to VSS, unless otherwise specified)
Characteristic Symbol Value Unit
Power Supply Voltage V
Input Voltage V
PowerDissipation P
Operating Temperature Topr -25~+70 °C
Storage Temperature Tstg -55~+150 °C
DD
IN
D
6.0 V
-0.3~VDD+0.3 V
500 mW
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
5
Silan
Semiconductors
ELECTRICAL CHARACTERISTICS
(Tamb=25°C, VDD=2.5V,fosc=3.579545MHz, All voltage referenced to V
Parameter Symbol Conditions Min Typ Max Unit
DC Characteristics
Operating Voltage V
Operating Current I
Standby Current ISON-HOOKNo keypad entry -- 0.1 1.0 µA
Memory Retention Current Imr ON-HOOKVDD=1.0V -- 0.1 1.0 µA
Control Pin Input Low Voltage Vil -- V
Control Pin Input High Voltage Vih -- 0.7V
Pin Leakage Current
XMUTE
XMUTE
HKS Pin Input Current Ihks Vhks=2.5V -- -- 0.1 µA
Keyboard
Scanning Pin
Key-in Debounce Time t
HFI pin input resistor Rhfi VDD=2.5V -- 200 -- kΩ
HFO pin drive current Ihdoh Vhfo=2.0V 0.2 -- -- mA
HFO pin sink current Ihdol Vhfo=0.5V 0.2 -- -- mA
HDI
HDO pin drive current Ihdoh Vhdo=2.0V 0.2 -- -- mA
HDO pin sink current Ihdol Vhdo=0.5V 0.2 -- -- mA
Pulse Mode
Pulse Output Pin Leakage Current Ipoh Vpo=2.0V(SC91650 only) 0.2 -- -- mA
Pulse Output Pin Sink Current Ipol Vpo=0.5V 0.2 -- -- mA
Pulse Rate fpr
Make/Break Ratio tMt
Pin Sink Current
pin pull high resistor Rhdi VDD=2.5V -- 200 -- kΩ
DD
OP
Imth
Imtl
Drive Current Ikbd
Sink Current Ikbs
DB
Tone 2.0 -- 5.5
Pulse 2.0 -- 5.5
Memory retention 1.0 5.5
Tone -- 0.4 1
OFF-HOOK, Keypad
entry with pull down
resistance
Pulse
OFF-HOOK, No
Keypad entry
V
=6.0V
XMUTE
=0.5V
V
XMUTE
Vn=0Vnote1,
No resistors connected t o V
Vn=2.5note1
No resistors connected t o V
-- -- 20 -- ms
B
SC91650/1/2 A/B
unless otherwise specified)
SS,
V
DD
DD
mA
V
µA
pps
%
-- 0.2 0.5
20 80 µA
SS
DD
-- -- 1 µA
0.2 -- -- mA
21050
SS
200 400 800
SS
-- 10 --
-- 20 --
-- 40:60 --
-- 33:66 -(to be continued)
0.3V
V
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
6
Silan
Semiconductors
(continued)
Parameter Symbol Conditions Min Typ Max Unit
Pre-digit Pause t
Inter-digit Pause t
Tone Mode
DC Level Vdc VDD=2.0V~5.5V 0.5V
Tone
Output Pin
DTMF Signal
(note 3)
(note 3)
Note: 1. Vn: Input voltage of any keyboard scanning pin (Row group, Column group)
Sink Current Itl Vdtmf=0.5V 0.2 -- -- mA
AC level Vdtmf Row groupRL=5KΩ 130 155 180 mVrms
Load Resistor RI Dist.≤ -23dB 5 -- -- KΩ
Pre-emphasis twist
Distortion Dist. R
2Distortion (dB) = 20log{[V
V
: Row group and Column group signal , V1V2…Vn: Harmonic signal (BW = 300Hz ~ 3500Hz
L,VH
1
M/B ratio=40:60 -- 40 --
PDP
M/B ratio=33:66 -- 33 -Pulse rate=10pps -- 800 --
IDP
Pulse rate=20pps -- 500 --
=2.0~5.5 V,
V
DD
Column-Row group
=5KΩ -- -30 -23 dB
L
t
Auto redial
TD
t
Auto redial
ITP
2
+…Vn2)
1/2
]/[(V
2
2
+V
+V
2
3
SC91650/1/2 A/B
DD
123dB
-- 100 -- msMinimum tone duration Time
-- 91 -- ms
-- 106 -- msMinimum Intertone Pause Time
-- 91 -- ms
1/2
2
2
+V
)
L
]}
H
-- 0.7V
DD
ms
ms
V
ACTUAL FREQUENCY OUTPUT
(fosc=3.579545MHz)
Keyboard Scanning Pin Standard(Hz) Output Deviation(%)
R1 f1 697 699 +0.28
R2 f2 770 766 -0.52
R3 f3 852 848 -0.47
R4 f4 941 948 +0.74
C1 f5 1209 1216 +0.57
C2 f6 1336 1332 -0.30
C3 f7 1477 1472 -0.34
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
7
Silan
Semiconductors
PIN DESCRIPTION
Pin No.
650A/B 651A/B 652A/B
121212
232323
343434
SC91650/1/2 A/B
Pin Name Description
*Provides keyboard scanning.
C1
a. Dialling option:
*The resistor connection between selected Row (or Column) and Vss
may select most countries telecom specification.
C2
C3
R=820k
R1
R2
R3
R4
C4 C3 C2 C1
454545
565656
15 18 15 18 15 18
16 19 16 19 16 19
17 20 17 20 17 20
18 21 18 21 18 21
C4
C5
R1
R2
R3
R4
b. Keyboard scanning:
*While
state. While
pin is HIGH, Both column pin and row pin are in floating
HKS
pin is LOW, the c olumn group stays in “HIGH”
HKS
state and row group stays in “LOW” state.
*The keypad is compatible with the standard dual contact matrix
keyboard (as figure1b), the inexpensive single contact keyboard (as
figure 1a), and electronic input (as figur e 1c).
*When
is “LOW”, a valid key entry is defined by related Row &
HKS
Column connection or by electronic input (as shown in figur e 1c).
*Activation of two or more keys will result in no response, except for
single key.
*To avoid keyboard-bouncing error, this chip provides built-in
debounce circuit. (Th e debounce time = 20ms)
Row
Figure1a: Single contact form
keyboard configuration
Figure1c: Electronic signal input keyboard configuration
Column
Figure1b: Dual contact form
Row
Column
Row
Column
keyboard configuration
V
DD
V
SS
V
DD
V
SS
(to be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
8
Silan
Semiconductors
(continued)
Pin No.
650A/B 651A/B 652A/B
676767 OSCI
787878 OSCO
898989
9 10 9 10 9 10 VSS *Negative power supply pin.
10 13 10 13 10 13 VDD *Positive power supply pin.
11 14 11 14 11 14
12 15 12 15 12 15
13 16 13 16 13 16 TONE
14 17 14 17 14 17 MODE
Pin Name Description
*Oscillator input & output pins.
*The 3.579545MHz oscillator is formed by a built-in inverter inside of
this chip and by connecting a 3.579545MHz crystal or a ceramic
resonator across the OSCI and OSCO pins. (built-in feedback resistor
and capacitor)
*When
HKS
generates a 3.579545 MHz clock.
*Mute output pins.
*NMOS open drain output structure.
XMUTE
HKS
PO
*The output is in “LOW” state during dialing sequence (both Pulse
and Tone mode) and in Hold status otherwise this pin is
“high-impedance”.
*Long (continue) Mute.
*Hook switch input pin.
*When the handset is in ON-HOOK state, this pin must be pulled
“high” in order to disable the dialing operation and decrease the
power consumption.
*When in OFF-HOOK state, th e
for all function operation.
*Pulse output signal pin.
*Inverter output structure (SC91650).
*The output is “LOW” during pulse dialing and Flash operation,
otherwise this output is “high”.
*NMOS open drain output structure.
*Dual ToneMulti-frequency output pin.
*In TONE mode, when an entry of digit key (include *, # key), this pin
will send out a corresponding DTMF signal.
*The TONE pin provides minimum tone duration (tTD) and minimum
intertone pause time to support rapid key-in. If key-in time is less than
t
100ms), DTMF signal will last for t
TD (
duration will last as long as the key is pressed.
*Mode select pin.
*Tri-state input structure.
*This pin can select following three modes.
SC91650/1/2 A/B
is “LOW”, a valid key-in may turn on this oscillator and
pin must be pulled “low” state
HKS
100ms); otherwise the tone
TD (
(to be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
9
Loading...