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 (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
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)
(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
* 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








PIN CONFIGURATIONS
SC91650/1/2 A/B
C1 1
C2 2
C3 3
C4 4
C5 5
OSCI 6
OSCO 7
XMUTE 8
VSS 9
18 R4
17 R3
16 R2
15 R1
14 MODE
13 TONE
12 PO
11 HKS
10 VDD
PMUTE 1
C1 2
C2 3
C3 4
C4 5
C5 6
OSCI 7
OSCO 8
XMUTE 9
VSS 10
HFI 11
22 KT
21 R4
20 R3
19 R2
18 R1
17 MODE
16 TONE
15 PO
14 HKS
13 VDD
12 HFO
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2005.06.16
Page 6 of 28

6 Page









SC91650/1/2 A/B
2 .Quickly Store
Procedure
: ↑ ST, D1, D2, ST, EM1, ST, D3, D4, D5, St, EM2, ST, EMn ↓
Dial out
: Nothing
EM1 = D1, D2; EM2 = D3, D4, D5, EMn = D3, D4, D5
LNB : D1, D2 … , Dn
3.Redial
EMn = D1 , D2, … … Dn
Procedure
:
Dial out
:
Dial out
:
LNB :
↑ EMn ↓
Dt1, Dt2, … … Dtn (in tone mode)
Dp1, Dp2, … … Dpn (in pulse mode)
D1, D2,… … Dn
G Two Touch Memory Function
1. Store Memory
Procedure
: ↑ ST, D1, D2… , Dn, ST, EMn ↓
Dial out
: Nothing
EMn = D1, D2,… … Dn
Procedure
: ↑ ST, D1, D2… … ,F, … … Dn, ST, EMn ↓
Dial out
: Nothing
EMn = D1, D2,… … ,F, … … Dn
Procedure
: ↑ ST, D1, D2… … ,P, … … Dn, ST, EMn ↓
Dial out
: Nothing
EMn = D1, D2,… … ,P, … … Dn
Procedure
: ↑ ST, D1, D2… … ,P→T, … … Dn, ST, EMn ↓
Dial out
: Nothing
EMn = D1, D2,… … , P→T, … … Dn
2 Quickly Store
Procedure
: ↑ ST, D1, D2, ST, EM1, ST, D3, D4, D5, St, EM2, ST, EMn ↓
Dial out
: Nothing
EM1 = D1, D2; EM2 = D3, D4, D5, EMn = D3, D4, D5
LNB : D1, D2 … , Dn
3 Redial
EMn = D1 , D2, … … Dn
Procedure
:
Dial out
:
Dial out
:
LNB :
↑ EMn ↓
Dt1, Dt2, … … Dtn (in tone mode )
Dp1, Dp2, … … Dpn (in pulse mode)
D1, D2,… … Dn
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2005.06.16
Page 12 of 28

12 Page