Silan Semiconductors SC91415 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY DESCRIPTION The SC91415 is a series of tone/pulse switchable dialers that is DIP-18 composed of T/P dialer and T/P dialer with 13 set memories. The SC91415 series provide necessary functions of telephone set for application in any environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone and lock functions. The lock function is designed to inhibit toll dialing operation. Beside this, melody generator, ring detector and SDO (Serial Data Output) DIP-22 functions are provided in advance version. Melody generator will output dual-tone music in line hold duration. Ring detector can prevent illegal dialing from pocket dialer. The SDO is designed to drive LCD driver and voice synthesizer. FEATURES *Tone/Pulse switchable *Wide operating voltage from 2.0 V to 5.5 V *Low operating current, 0.15mA (Pulse) and 0.3mA (Tone) typically *Adding resistor on keyboard scan pin that can select many telephone specifications, such as: Pulse rate, M/B ratio, Flash time, *SDO function supports LCD driver and voice synthesizer to indicate dialing numbers. *Line hold function is designed for stopping lock dialing functions. *Lock function provides conventionality key lock and password lock conversation temporality *Melody generator provides music on hold operations *Ring detector is designed to prevent illegal dialing from pocket dialer *13 set one touch or (3 set one touch and 10 set two touch) function *Keytone function provides rapidly keying recognition repertory memory, each one can hold data up to 16 digits *A 32-digit LNB (last number) redial memory *Handfree function provides on-hook dialing and speakerphone ORDERING INFORMATION SC91415AP DIP-18 Package SC91415BP DIP-20 Package *Tone duration and inter-tone pause time are fixed to 98 ms SC91415CK DIP-22 Package *Using 3.579545 MHz crystal or ceramic resonator SC91415DK DIP-24 Package application *Pause and P-T time are fixed to 3.6 seconds HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 1 2001-11-13 Silan Semiconductors SC91415 SERIES PIN CONFIGURATIONS 1 20 HDO COL4/KT 2 19 PO COL3 3 18 ROW4 16 ROW4 COL2 4 17 ROW3 15 ROW3 COL1 5 XIN 6 XOUT 7 XMUTE 8 13 VDD VSS 9 12 DTMF HFI 10 11 HFO 18 HDO COL4/KT 2 17 PO COL3 3 COL2 4 COL1 5 XIN 6 XOUT 7 12 HKS XMUTE 8 11 VDD VSS 9 10 DTMF SC91415AP 1 ROW6 1 14 ROW2 13 ROW1 24 COL4/KT 3 COL2 5 20 ROW3 COL1 6 XIN 7 SC91415DK 21 ROW4 XOUT 8 19 ROW1 17 HKS XMUTE 9 16 VDD VSS 10 15 DTMF HFI 11 14 DRING 12 13 14 HKS ROW5/ SDO 22 COL5 2 21 HDO COL4/KT 3 20 PO COL3 4 19 ROW4 COL2 5 COL1 6 ROW2 18 15 ROW1 1 22 PO COL3 4 16 ROW2 ROW6 23 HDO SC91415CK COL5 2 ROW5/ SDO SC91415BP COL5 COL5 18 ROW3 17 ROW2 XIN 7 XOUT 8 16 ROW1 15 HKS XMUTE 9 14 VDD VSS 10 13 DTMF HFI 11 12 HFO HFO RMUTE VERSIONS LIST AND FUNCTION OUTLINE Version LNB KT HOLD(music) LOCK SC91415A HF SDO(LCD) SC91415B SC91415C SC91415D PDP Note: PDP = Pocket Dialer Prevented HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 2 2001-11-13 Silan Semiconductors SC91415 SERIES BLOCK DIAGRAM SDO HFO HDO RMUTE XMUTE COL1 COL2 Keyboard COL3 interface COL4 /KT Row/Column programming counter Output circuit (column) COL5 Memory (Melody) XIN latch & decoder D/A converter DTMF Oscillator XOUT Timing/Control circuit Keyboard ROW1 Pulse generator interface Input circuit PO (Row) ROW6 VDD HFS HKS DRING VDD KEYBOARD ASSIGNMENT COL1 COL2 COL3 COL4/KT ROW1 1 2 3 HD COL5 EM1 ROW2 4 5 6 F EM2 ROW3 7 8 9 A EM3 ROW4 */T 0 # RD/P ST ROW5/SDO M1 M2 M3 M4 M5 ROW6 M6 M7 M8 M9 M10 Note: ROW5/SDO: Option by COL5, When ROW5 is selected by R option (COL5), there are 13 sets one touch memory version in SC91415C/D provided. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 3 2001-11-13 Silan Semiconductors SC91415 SERIES DIALING SIGNAL OPTION The SC91415 series incorporated a special keyboard scanning function that is connecting a resistor (typically is 560 kΩ) on keyboard scan pin to select many telephone specifications. The specifications are described as following : a. Mode b. M/B ratio ROW1 Mode ROW2 MBR (%) R-VDD 20PPS NR 40:60 NR Tone R-Vss 33:66 R-Vss 10PPS c. Flash Time d. Lock control method ROW3 ROW4 Tf (ms) COL1 Control method NR NR 600 R-VDD Key lock NR R-Vss 100 NR None lock R-Vss NR 80 R-Vss Password lock R-Vss R-Vss 300 e. Lock number f. ROW5/SDO pin functions COL2 COL3 Lock number COL5 ROW5 or SDO Pin NR NR None NR SDO R-Vss ROW5 NR R-Vss 0 R-Vss NR 9 R-Vss R-Vss 0.9 (Note): If select SDO function, the memory type is (1T*3+2T*10) If select ROW function, the memory type is (1T*3+2T*10) and (1T*13) ABSOLUTE MAXIMUM RATINGS (Tamb=25°C, All voltage referenced to VSS, unless otherwise specified) Characteristic Symbol Value Unit V Power Supply Voltage VDD 6.0 Input Voltage VIN VSS-0.3~VDD+0.3 V Power Dissipation PD 500 mW Operating Temperature Topr 0~+50 °C Storage Temperature Tstg -55~+125 °C HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 4 2001-11-13 Silan Semiconductors SC91415 SERIES ELECTRICAL CHARACTERISTICS (Tamb=25°C, VDD=2.5V, fosc=3.579545MHz, All voltage referenced to VSS, unless otherwise specified) Parameter Symbol Operating Voltage VDD Test Conditions Tone unload Pulse Pulse Operating Current ( HKS =0) IDD Unload Tone Istby Memory Retention Current Imrt Typ Max 2.0 -- 5.5 2.0 -- 5.5 -- 0.15 0.3 -- 0.3 0.5 Pulse with pull up/down -- 0.15 0.3 Tone resistor *8 -- 0.3 0.5 ON-HOOK Standby Current Min Unit V mA Unload OFF-HOOK with pull up/down ON-HOOK OFF-HOOK resistor *8 -- 0.1 1.0 µA ON-HOO KVDD=1.0V -- 0.001 0.1 µA HKS , HFI & DRING pins: Vil -- VSS 0.2VDD Input Voltage Vih -- 0.8VDD VDD HFO & HDO Pins Source Current Ioh Vo=2.0V 0.2 -- -- mA PO , XMUTE , RMUTE & SDO Ioh Vo= VDD -- -- ±0.001 µA Iol Vo=0.5V -0.2 -- -- mA -- 100 -- kΩ kΩ V Pins Leakage Current PO ,HFO, XMUTE , RMUTE & SDO Pins Sink Current DRING pin input resistance Rdring Vdring = VSS HFI Pin Input Resistance Rhfi Vhfi = VSS -- 200 -- Keyboard Scanning Pins Ioh Vksn=VSS 2 10 50 Output Current(except COL4/KT) Iol Vksn=VDD 2 10 50 COL4/KT Source Current Ioh Vo=2.0V 0.2 -- -- Iol Vo=0.5V 0.2 -- -- Sink Current Keyboard debounce time µA mA Tdb -- -- 20 -- Frequency fkt -- -- 600 -- Hz Duration Tkt -- -- 30 -- ms Pause Time Tp -- -- 3.6 -- Sec. Pulse to Tone Waiting Time Tpt -- -- 3.6 -- Sec. Row3B, Row4B=NR,NR -- 600 -- Key Tone Signal Flash Time Tf Row3B, Row4B=NR,R-Vss 100 Row3B, Row4B=R-Vss,NR 80 Row3B, Row4B=R-Vss,R-Vss -- ms ms 300 -(to be continued) HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 5 2001-11-13 Silan Semiconductors SC91415 SERIES (continued) Parameter Symbol Pulse Rate PSR Make/Break Ratio MBR Inter-digit Pause Time Tidp DTMF pin: Sink Current DTMF signal DC level Min Typ Max Row1=R-VDD Test Conditions -- 20 -- Row1=R-VSS -- 10 -- Row2=NR -- 40:60 -- Row2=R-VSS -- 33:66 -- PSR=10pps -- 800 -- PSR=20pps -- 500 -- IoL Vdtmf=0.5V -0.2 -- -- Vdc Unit pps % ms mA VDD=2.0V~5.5V 0.5 -- 0.75 V AC Level Vdtmf Row group 142 160 180 mV Pre-emphase Twist Column – Row 1 2 3 dB Distortion THD RL=5kΩ -- -30 -23 dB ZL THD<-23db 5 -- -- kΩ Minimum tone duration Time Tp -- 96 98 100 ms Minimum Intertone Pause Time tITP Memory dialing 96 98 100 ms -- -23.3 -- (dBm) 48 53 58 mV -- -25.3 -- (dBm) 37 42 47 mV -- 280 -- ms DTMF signal Load Resistance Melody Main Tone AC Level Vmtac VDD=2.0V~5.5V Output Signal Sub-tone HD key release hold function debounce time Vstac VDD=2.0V~5.5V Thdrdb -- SDO every bit time Tbit -- 3.8 3.9 4.1 ms Off-Hook delay time Tdly -- -- 300 -- ms DTMF FREQUENCY OUTPUT (fosc=3.579545MHz) Keyboard Scanning Pin CCITT Standard(Hz) Actual Output Deviation(%) ROW1 (f1) 697 699.1 +0.30 ROW2 (f2) 770 766.2 -0.49 ROW3 (f3) 852 847.4 -0.53 ROW4 (f4) 941 947.9 +0.73 COL1 (f5) 1209 1215.8 +0.56 COL2 (f6) 1336 1331.6 -0.32 COL3 (f7) 1477 1471.8 -0.35 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 6 2001-11-13 Silan Semiconductors SC91415 SERIES PIN DESCRIPTION AP Pin No. BP CK DK 13 15 16 18 ROW1 14 16 17 19 ROW2 15 17 18 20 ROW3 16 18 19 21 ROW4 -- -- 22 24 ROW5 -- -- 1 1 ROW6 5 5 6 6 COL1 4 4 5 5 COL2 3 3 4 4 COL3 1 1 2 2 COL5 Pin Name 2 2 3 3 COL4/KT 6 6 7 7 XIN 7 7 8 8 XOUT 8 8 9 9 XMUTE 11 13 14 16 VDD 9 9 10 10 VSS -- 10 11 11 -- 11 12 14 Description Keyboard scan pins of row group. In idle state ( HKS is “High” and HFO is “Low”), these pins stay “High impedance” level to prevent power consumption. Otherwise, these pins switch to “High” level for detecting keyboard entry. These pins will output 600Hz signal while keyboard is scanning. Keyboard scan pins of column group. In idle state, these pins stay “High impedance” level. Otherwise these pins switch to “Low” level for detecting keyboard entry. These pins will output 600Hz signal while keyboard is scanning. The fourth column group pin of the keyboard that also provides the keytone output. Normally, this pin stays “Low” level for detecting keyboard entry. After a valid keyboard entry, this pin will output keying confirmation tone that is 600 Hz signal and 30 ms duration. To prevent signal interference, while DTMF issue, it will disable key tone output except function key. Oscillator input and output pins. A 3.579545MHz crystal or ceramic resonator must be crossed connection to XIN and XOUT pins which generate system clock. The Tone/Pulse MUTE signal output pin that is NMOS open-drain output structure. This pin will switch to “Low” level during Tone/Pulse dialing and hold function. Otherwise, this pin stays “High impedance” level. Positive and negative power supply input pins. Recommended operating voltage from 2.0Vdc to 5.5Vdc. HFI Handfree inputs pin which accepts falling edge signal to turn “on” or turn “off” handfree function. This pin is hysteresis input structure and built-in pull up resistor (typically 200kΩ). HFO Handfree outputs pin that is designed to control telephone line for on-hook dialing or control speakerphone circuit for handfree conversation. When handfree function is executed, this pin will switch to“High”. Otherwise, this pin stays “Low” level. The DTMF (Dual Tone Multi-Frequency) and music signals output pin. Normally, this pin stays “Low” level. In Tone dialing mode, this pin will 10 12 13 15 DTMF output DTMF signal that is corresponding to keyboard 0 . 9, * and # keys. Beside this, in the line hold duration, this pin will issue dual-tone music for telephone line. (to be continued) HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 7 2001-11-13 Silan Semiconductors SC91415 SERIES (continued) Pin No. AP BP CK DK Pin Name Description Control signal inputs pin that is corresponding hook switch status. When handset was left from cradle, this pin must be connected to 12 14 15 17 HKS “Low” level to operate all functions. Otherwise, this pin must be connected to “High” level to disable all function and prevent power consumption. Pulse signal outputs pin that is NMOS open-drain output structure. 17 19 20 22 PO Normally, this pin stays “High impedance” level. In Pulse dialing mode and keypad was entry. This pin will output pulse trains signal that is corresponding to keyboard 0 .. 9 keys. Hold function output that is CMOS structure. Normally, this pin stays 18 20 21 23 HDO “Low” level. When Hold function is executing, this pin will output “High” level. This pin is designed to drive LED or peripheral circuit to indicate line is at Hold status. SDO function output that is NMOS open-drain structure. When there is a valid entry on keyboard, this pin will output a serial data. This -- -- 22 24 SDO serial data is designed to drive LCD driver to display dialing number on LCD screen or drive voice synthesizer to announce dialing number to speaker. The ring signal detect input pin which is internal pull up (built-in 100 -- -- -- 12 DRING kΩ resistor). While the Tel-ring is incoming, this pin must be connected to “Low” with delay to indicate the ringing . Otherwise, this pin must be connected to “High” level . Ring mute output pin that is NMOS open-drain structure. The RMUTE pin is designed to control microphone of handset to prevent the illegal dialing from pocket dialer. If the DRING pin is at “High” level , then Off-Hook or turn on Handfree, this pin will output “Low” level. In other words, the DRING pin is used to check the -- -- -- 13 RMUTE phone that receives an incoming call ( DRING =Low input) or make an outgoing call ( DRING = High input) . If the phone user make an outgoing call ,then RMUTE pin activated to prevent the illegal dialing from pocket dialer in the particular application. The RMUTE can be restored to “High” level when the first key entry is not the optioned lock-number . HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 8 2001-11-13 Silan Semiconductors SC91415 SERIES FUNCTION DESCRIPTIONS ANormal Dialing Directly keying digital key on keyboard which number can be dialing output and stored in LNB memory automatically. Operating procedure described as follow : * To select Pulse or Tone mode. * Off-hook or turn on HF function. * Keying d1, d2, .. , dn. The “d” expressed digital keypad that included 1~9, *, 0, #, P, and P→T keys. The “n” expressed unlimited. * The numbers d1, d2, .. , dn will be dialed out in Pulse or Tone mode as selection. BLNB redial memory Storing: In normal dialing mode, every digital key was entry which number will be stored in LNB memory automatically. If entry digits are more than 32 digits, the redial function of LNB memory will be disabled. Otherwise, these numbers stored in LNB memory can be redial output. Redialing: After normal dialing, directly keying F key (or On-Off hook once) and keying RD key on keyboard. The numbers that are stored into LNB memory will be dialed output. CRepertory memory The SC91415 series incorporated several sets repertory memory and each one can store number up to 16 digits. In memory storing, if stored numbers are more than 16 digits that only the previous 16 digits can be stored into specific memory. Otherwise, these numbers can be stored entirely. After memory dialed out, the content of LNB is keeping to current data. Storing of 13 sets memory types Direct (one-touch) operation Off-hook (or turn on HF function), push (ST, d1, d2, .. , dn [ST], EMn or M1~M10 (ROW5 optioned). The numbers d1, d2, .. , dn will be stored into memory location “EMn” or Mn. The “EMn” expressed emergency memory EM1 to EM3. The Mn expressed memory M1~M10. Indirect (two-touch) memory operation Off-hook (or turn on HF function), push (ST, d1, d2, .. , dn, ST, n.) The numbers d1, d2, .. , dn will be stored into memory location “n”. The “n” expressed digital key from 0 to 9. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 9 2001-11-13 Silan Semiconductors SC91415 SERIES Dialing (after memory dialed out, the content of LNB is keeping to current data) Direct (one-touch) memory operation * To select Pulse or Tone mode. * Off-hook (or Turn on HF function), push Mn (or EMn) key. The numbers that are stored in direct memory location “Mn (or EMn)” will be dialed out in Pulse or Tone mode as selection. The “n” expressed digital number from 1~10 decided by dialers’ memory sets. Indirect (two-touch) memory operation * To select Pulse or Tone mode. * Off-hook (or Turn on HF function), push A, n key. The numbers that are stored in indirect memory location “n” will be dialed out in Pulse or Tone mode as selection. The “n” expressed digital key from 0 to 9. Pause (P) Key operation The Pause (P) key is designed to support pause operation in dialing duration. “P” key can be stored in memory and it will occupy one digital position. * To select Pulse or Tone mode. * Off-hook (or turn on HF function), push (d1, d2, .. , dn, RD/P, k1, k2, .. , kn.) These numbers will be dialed out as following sequence: d1, d2, .. , dn, Tp, k1, k2, .. , kn Pulse to Tone (*/T) key operation The Pulse to Tone (*/T) key is designed to support toll dialing (long distance call) or PABX system operation. The “*/T” key can be stored in memory and it will occupy one digital position. * To select Pulse mode. * Off-hook (or turn on HF function), push d1, d2, .. , dn, */T, k1, k2, .. , kn. These numbers will be dialed out as following sequence: d1, d2, .. , dn, Tpt, k1, k2, .. , kn. (pulse mode) (tone mode) Flash (F) key operation The Flash (F) key is designed to break telephone line temporarily. After F key is depressed, this dialer will send a flash signal to break line 600 ms, 300 ms, 100 ms or 80 ms as ROW3 and ROW4 selection. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 10 2001-11-13 Silan Semiconductors SC91415 SERIES D) Handfree (HF) function The handfree function is designed to support on-hook dialing and loudspeaker application which can be turn “on” or “off” with falling edge signal from HFI pin. During handfree function is executed, the HFO pin is switched to “high”. Otherwise the HFO pin stays “low” level. One of the following operations can turn off Handfree function (HFO pin return to “Low”). * On-off hook once. * Trigger HFI pin with falling edge signal. * Turn on Hold (HD) function. (HDO pin switched to “High”) E) Hold (HD) function The Hold function is designed to stop conversation temporarily. In off-hook state (or HF function is turned on), to press HD key on the keyboard, the Hold function can be turned “on” (HDO pin switched to “High”). One of the following operations can turn off Hold function (HDO pin switched to “Low”). * On-off hook once. * To press HD key over 280 ms. * Turn on Handfree (HF) function. (HFO pin switched to “High”) Special Note A 300 ms delay time (Tdly) at the first Off-Hook or turn on Handfree that is a special designed to avoid a rapid key entry (dummy number ) in this time duration ,and a long distance call number follows. For example, Off-Hook , “3” ,.................... , “0” ,1,2,3...... Dummy key Lock number key The dummy number “3” is not detected by the centered office or PABX ,but the following numbers “0” ,1,2,3... long distance call can be dialed out normally since the leading number “3” is not the Lock-number defined in SC91415 series. To prevent the unavoidable long distance call, then SC91415 inhibits the key entry during Tdly. F) Operating flow chart HF 1 On-hook State HKS=Hi HF 4 On-hook Handfree State HKS=Lo HD HF 6 On-hook Holdline State 2 Off-hook State Note : HKS=Hi HD HKS=Lo HD HD = Hold HD HF HD HKS=Hi HF= Handfree, HF HF 3 Off-hook Handfree State 5 Off-hook Holdline State HKS=Lo HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 11 2001-11-13 Silan Semiconductors SC91415 SERIES Truth table Input / Output pin level Operating State (0) on-hook, idle state (1) Off-hook line (2) Off-hook, HF line (3) On-hook, HF line (4) Off-hook, HD line (5) On-hook, HD line HKS PO XMUTE HFO HDO H L F F F F L L L L L H F F F F H H L L L H F F L L L L H H Note : F = floating (high impedance); H = logic “High”; L = logic “Low” level. G) Music on Hold SC91415 series built-in a melody generator to generate dual-tone music on DTMF output pin. The music is designed for telephone line at line holding. H) SDO (Serial Data Output) function The SDO is serial data output which format is same as UART protocol. SDO function is designed to drive LCD driver and voice synthesizer. So the dialing numbers can be display on LCD screen with SC32100 (or SC32116). The SDO signal consists of two start bits, six data bits and two stop bits. Each bit time is about 3.9 ms (256 Hz) and output sequences are following by start bits, data bits (LSB to MSB) and stop bits. 0 ready start bits 1 bit0 bit1 bit2 bit3 data bits bit4 bit5 0 1 stop bits HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 12 2001-11-13 Silan Semiconductors SC91415 SERIES SDO Keypad Encoded table * Digital key (b5,b4=0,0) Output Keypad Display b3 b2 b1 b0 1 0 0 0 1 1 2 0 0 1 0 2 3 0 0 1 1 3 4 0 1 0 0 4 5 0 1 0 1 5 6 0 1 1 0 6 7 0 1 1 1 7 8 1 0 0 0 8 9 1 0 0 1 9 0 1 0 1 0 0 “*”/T 1 0 1 1 # 1 1 0 0 P 1 1 0 1 */”T” 1 1 1 0 P b3 b2 b1 b0 1 1 1 1 * Function key (b5,b4=1,0) Output Keypad F Display Clear all display * Keypad ,SDO format and LCD display reference table: Keypad Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Display 1 0 0 0 0 0 1 1 2 0 0 0 0 1 0 2 3 0 0 0 0 1 1 3 4 0 0 0 1 0 0 4 5 0 0 0 1 0 1 5 6 0 0 0 1 1 0 6 7 0 0 0 1 1 1 7 8 0 0 1 0 0 0 8 9 0 0 1 0 0 1 9 0 0 0 1 0 1 0 0 “*”/T 0 0 1 0 1 1 # 0 0 1 1 0 0 P 0 0 1 1 0 1 */”T” 0 0 1 1 1 0 P F 1 0 1 1 1 1 Clear all display HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 13 2001-11-13 Silan Semiconductors SC91415 SERIES I) LOCK function The SC91415 series provide the LOCK function to inhibit toll dialing operation. Connecting a resistor on COL1 pin to VSS can select different LOCK control method that is conventional key lock or password lock. Also the lock number that can be selected by connecting the resistors on COL2 or COL3 pin. After power on reset, the password is fixed to 000 automatically. The lock function is disabled when the password is equal to 000. How to setup password * Set LOCK function to password control mode. (Connects a resistor on COL1 pin to VSS) * Off hook (or turn on HF function) * Push: # , # , ops1, ops2, ops3, nps1, nps2, nps3, # . If the ops1~ops3 are the same with current password, then nps1~np3 will be stored in the dialer to replace current password. Otherwise, the current password can not be updated. All the numbers pressed in the password setup procedure can not be dialed out when current password is not equal to 000. If the current password are equal to 000, then only the first number “#” will be dialed out. Normal dialing Set lock function to none lock mode (without resistor connected to COL1 pin) or set password equal to 000. In this case, the dialer is operated in normal mode and all functions work at unlimitation. Dialing via LOCK function Conventional key lock mode. (Connects a resistor on COL1 pin to VDD) * Off hook (or turn on HF function) * Keying: d1, d2, .. , dn . If the first number (d1) is the same with the lock number that optioned in table, then all entry numbers can not be dialed out and keyboard will be inhibited until on to off hook once again. If the first number is not equal to lock number, all the entry numbers will be dialed out. Password control mode. (Connects a resistor on COL1 pin to VSS) * Off hook (or turn on HF function) * Keying: ( [#, ps1, ps2, ps3] + telephone number.) The numbers in the [ ] symbol could be omitted. The number “#” will be inhibited when the current password is not equal to 000,and ps1, ps2, ps3 work at the checking state, not to be dialed out. Other descriptions are as on following: Incorrect password entry. The telephone numbers can not be dialed out. Password is omitted. If the first digit of telephone numbers is the same with the lock number, all of the telephone numbers can not be dialed out and keyboard will be inhibited until On to Off hook once again. If the first digit is not equal to the lock number then the telephone numbers will be dialed out entirely. Correct password entry. The telephone numbers can be dial out no matter what lock number is. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 14 2001-11-13 Silan Semiconductors SC91415 SERIES J) Ring detector The Ring detector is designed to prevent illegal dialing from pocket dialer. Following the procedures ( i,ii,iii ), this dialer will detect DRING pin to control RMUTE output level. If DRING is detected a “Low” level, the RMUTE stays “High impedance”. If DRING is detected a “High” level, the RMUTE will output “Low” until keyboard entry. In actual application of the RMUTE pin is recommended connection to microphone of the phone handset to prevent that the dialing signal (DTMF) is coupling by the Microphone of the phone handset. (such as pocket dialer) i. In idle state, HKS is from “High” to “Low” (pick up handset action). ii. In idle state, turn on handfree function. iii. The flash operation ( F key ). TIMING DIAGRAMS HKS 2 KEY IN 3 Tdb KT Tkt XMUTE HDO SDO Tm Tidp PO TbTm Tb Tm Tidp DTMF OSC. Tdly Hi-impedance Pulse mode operating timing HKS KEY IN 3 2 Tdb KT XMUTE HDO SDO PO Td Titp Titp DTMF OSC. Hi-impedance DTMF mode operating timing HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 15 2001-11-13 Silan Semiconductors SC91415 SERIES TIMING DIAGRAMS (continued) LNB=2,3 HKS KEY IN RD/P Tdb KT Tkt XMUTE HDO SDO Tm PO Tidp Tidp Tb Tm Tb Tm DTMF OSC. Tdly Hi-impedance Pulse mode LNB redial timing LNB=2,3 HKS KEY IN RD/P Tdb KT Tkt XMUTE HDO SDO Td PO Td Titp DTMF Titp OSC. Tdly Hi-impedance DTMF mode LNB redial timing HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 16 2001-11-13 Silan Semiconductors SC91415 SERIES TIMING DIAGRAMS (continued) HKS 2 KEY IN RD/P 3 KT XMUTE Tp HDO SDO PO Tidp Tidp DTMF OSC. Hi-impedance Pause key operating timing HKS 2 KEY IN */T 3 KT XMUTE Tpt HDO SDO PO DTMF OSC. Hi-impedance Pulse to Tone (P→T) operating timing HKS 2 KEY IN Tdb KT XMUTE HDO SDO PO Tf Tfp=300ms DTMF OSC. Hi-impedance Flash key operating timing HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 17 2001-11-13 Silan Semiconductors SC91415 SERIES TIMING DIAGRAMS (continued) HKS 2 KEY IN Tdb KT SDO sT sT b0 b1 b2 b3 b4 b5 spt spt Tbit 0 1 0 1 0 0 0 0 0 1 L M Hi-impedance Note: L=LSB, M=MSB, sT=START bit time, spT=STOP bit time SDO operating timing HKS KEY IN HF HD HF HD HD HD HF HD HD@ Thdrdb 280ms HFO HDO XMUTE SDO PO MELODY Hi-impedance @ :It can be triggled by extension telephone set for hold function release HF and HD operating timing HFI HF HKS 5 KEY 0 KT Tdly OSC. "0" digit dialing time Hi-impedance Off-Hook delay time HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 18 2001-11-13 Silan Semiconductors SC91415 SERIES TIMING DIAGRAMS (continued) Toff RING Ton DRING HKS RMUTE Timing of receiving an incoming call RING DRING HKS RMUTE Timing of making an outgoing call HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 19 2001-11-13 SC91415 SERIES TYPACAL APPLICATION CIRCUIT(for SC91415) Silan Semiconductors Tip Ring 470Ω 0.1µF 1A Bridge A92 SW1A 220kΩ A42 2.2kΩ 10MΩ ONHOOK OFFHOOK 1N4148 47kΩ 100kΩ VDD 1N4148 100kΩ 1N4148 47kΩ 47kΩ 100kΩ 1N4148 560kΩ 2.7kΩ 1N4148 220kΩ 0.1µF 560kΩ 560kΩ 560kΩ 0.1µF 470kΩ C945 220µF 1815 18 17 1.5kΩ 1815 19 5.1V 20 50Ω 21 0.01µF 22 HOOK SW1B HFO HDO 47µF 220kΩ C945 1N4148X3 10kΩ 22kΩ 1.0µF 47kΩ 0.1µF 1.5V JUMPER CE LCD DRIVER C945 CE ROW1 C945 COL4/KT AUDIO POWER AMPLIFER 2001-11-13 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 HANDFREE 470kΩ HANDSET JUMPER JUMPER 560kΩ 47kΩ HDO 12 13 11 14 10 15 9 16 8 23 7 24 6 DRING 2 TO 4 LINE SPEECH NETWORK 20 27V 22µF/50V VDD JUMPER 5 SC91415DK 4 HF 3 10pF 2 10pF 3.58MHz 1 BUZZER DRING HFO HFI RMUTE VSS VDD XMUTE DTMF XOUT DRING EM1 HKS XIN 560kΩ HD ROW1 COL1 1.2MΩ 1.0µF 3 ROW2 COL2 JUMPER EM3 2 ST 1 A M5 EM2 RD/P M10 F 9 M4 6 # M9 5 8 M3 4 7 0 M8 ROW3 COL3 BRIDGE 4.7kΩ PC817 */T M2 560kΩ M7 560kΩ M1 560kΩ M6 560kΩ PO ROW4 COL4/KT HDO COL5 SDO/ROW5 ROW6 Silan Semiconductors SC91415 SERIES CHIP TOPOGRAPHY Size: 2.16 x 2.33 mm 2 PAD COORDINATES (Unit: µm) No. Symbol X Y No. Symbol X Y 1 P1 -1002.4 -256.3 12 P12 1006.5 350.1 2 P2 -1002.4 -450.7 13 P13 1006.5 608.3 3 P3 -1002.4 -649.1 14 P14 1007.2 846.3 4 P4 -1002.4 -878.2 15 P15 849.2 923.4 5 P5 -839.9 -925.4 16 P16 556.0 923.4 6 P6 -563.3 -925.4 17 P17 379.6 7 P7 321.0 -925.4 18 P18 108.0 923.4 923.4 8 P8 721.4 -926.5 19 P19 -1002.4 719.1 9 P9 1006.5 -794.9 20 P20 -1002.4 501.8 10 P10 1006.5 -639.7 21 P21 -1001.4 200.2 11 P11 1006.5 -343.1 22 P22 -1002.4 5.1 Note: The original point of the coordinate is the die center. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 21 2001-11-13 Silan Semiconductors SC91415 SERIES PACKAGE OUTLINE DIP-18-300-2.54 UNIT: mm 6.40 7.62 0.25 2.54 1.50 15 degree 3.30 5.08 3.51 22.95 0.46 UNIT: mm DIP-20-300-2.54 6.40 7.62 0.25 2.54 1.50 15 degree 3.30 5.08 3.51 22.95 0.46 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 22 2001-11-13 Silan Semiconductors SC91415 SERIES PACKAGE OUTLINE DIP-22-400-2.54 UNIT: mm 10.16 9.34 0.25 2.54 1.50 15 degree 3.30 5.08 3.51 27.88 0.46 SDIP-24-300-2.54 UNIT: mm 7.62 6.40 0.25 2.54 1.50 15 degree 3.30 5.08 3.51 34.50 0.46 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 2.0 23 2001-11-13