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PDF ( 数据手册 , 数据表 ) SC91650B

零件编号 SC91650B
描述 T/P DIALER WITH REDIAL & HANDFREE
制造商 Silan Microelectronics
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SC91650B 数据手册, 描述, 功能
SC91650/1/2 A/B
T/P DIALER WITH REDIAL & HANDFREE,HOLD
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/Puls e 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 (PT) 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
ORDERING INFORMATION
Device
SC91650A
SC91650B
SC91651A
SC91651B
SC91652A
SC91652B
Package
DIP-18-300-2.54
DIP-22-400-2.54
DIP-18-300-2.54
DIP-22-400-2.54
DIP-18-300-2.54
DIP-22-400-2.54
* 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)
(PT) 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
* Power on reset circuit is provided
* Hold function is provided
* Keytone is provided
* Packaged in 18-DIP or 22-DIP
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2005.06.16
Page 1 of 28







SC91650B pdf, 数据表
SC91650/1/2 A/B
(Continued)
Pin No.
650A/B 651A/B
652A/B
676767
787878
898989
9 10 9 10 9 10
10 13 10 13 10 13
11 14 11 14 11 14
12 15 12 15 12 15
13 16 13 16 13 16
14 17 14 17 14 17
Pin
Name
OSCI
OSCO
XMUTE
VSS
VDD
HKS
PO
TONE
MODE
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 is “LOW”, a valid key-in may turn on this oscillator and
generates a 3.579545 MHz clock.
*Mute output pins.
*NMOS open drain output structure.
*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.
*Negative power supply pin.
*Positive power supply pin.
*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 HKS pin must be pulled “low”state
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 Tone Multi-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 tTD (100ms), DTMF signal will last for tTD (100ms); otherwise
the tone duration will last as long as the key is pressed.
*Mode select pin.
*Tri-state input structure.
*This pin can select following three modes.
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2005.06.16
Page 8 of 28







SC91650B equivalent, schematic
TIMING DIAGRAMS
SC91650/1/2 A/B
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2005.06.16
Page 16 of 28










页数 28 页
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