W9145 15-MEMORY W9145A W9145L W9145AL 22-PIN 24-PIN - Datasheet Archive

 

15-MEMORY TONE/PULSE DIALER WITH LOCK AND HANDFREE FUNCTIONS GENERAL DESCRIPTION The W9145 series are Si-gate CMOS ICs that

 

W9145 W9145 SERIES 15-MEMORY 15-MEMORY TONE/PULSE DIALER WITH LOCK AND HANDFREE FUNCTIONS GENERAL DESCRIPTION The W9145 W9145 series are Si-gate CMOS ICs that provide the necessary signals for either pulse or tone dialing. The W9145 W9145 series feature a key tone function, handfree dialing, a lock function, thirteen 16digit automatic dialing memories, and two by 32-digit for redial and save memory. FEATURES · · · · · · · · · · · · · · · · · · · · · DTMF/Pulse switchable dialer Two by 32 digits for redial and save memory Three by 16 digits for one-touch direct repertory Ten by 16 digits for two-touch indirect repertory Unlimited dialing length (redial inhibited if dialing length exceeds 32 digits in normal dialing) Auto Pause Access for PBX and toll service operations (3.1 seconds per pause) Easy operation with redial, store, auto and pause keypads Key tone output for recognition of valid keypad entry Call disconnect (CD) key for line break operation Mute key for speech mute Flash time: 98 mS, 305 mS or 600 mS Minimum tone output duration: 93 mS Minimum intertone pause: 93 mS 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out Automatic switching from pulse mode to tone mode by */T key operation Break/make ratio pin selectable Uses Form A keyboard or standard 5 × 5 matrix keyboard Uses inexpensive 3.579545 MHz television color-burst crystal Internally generated power-on reset Packaged in 22/24-pin DIP The different dialers in the W9145 W9145 series are shown in the following table: TYPE NO. PULSE (ppS) FLASH B/M HANDFREE LOCK W9145 W9145 10 98/305/600 Pin No No W9145A W9145A 10 98/305/600 Pin Yes No W9145L W9145L 10 98/305/600 Pin No Yes W9145AL W9145AL 10 98/305/600 Pin Yes Yes PIN CONFIGURATIONS -1- Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES C1 1 24 R5 C1 1 22 R5 C2 2 23 R4 C2 2 21 R4 C3 3 22 R3 C3 3 20 R3 C4 4 21 R2 5 20 R1 C4 4 19 R2 VSS VSS 5 18 R1 XT 6 19 VDD XT 6 17 VDD XT 7 18 B/M XT 7 16 T/P MUTE 8 17 TEST T/P MUTE 8 15 TEST HKS 9 16 MODE HKS 9 14 MODE DP/C5 10 15 X MUTE DP/C5 10 13 X MUTE DTMF 11 14 KT DTMF 11 12 KT HFI 12 13 HFO B/M W9145 W9145 W9145A W9145A C1 1 24 R5 C1 1 22 R5 C2 2 23 R4 C2 2 21 R4 C3 3 22 R3 C3 3 20 R3 C4 4 21 R2 C4 4 19 R2 VSS 5 20 R1 VSS 5 18 R1 XT 6 19 VDD 17 VDD XT 7 18 B/M T/P MUTE 8 17 LOCK HKS 9 16 MODE X MUTE XT 6 B/M XT 7 16 T/P MUTE 8 15 LOCK HKS 9 14 MODE DP/C5 10 15 10 13 X MUTE DTMF 11 14 KT 12 KT HFI 12 13 HFO DP/C5 DTMF 11 W9145L W9145L W9145AL W9145AL PIN DESCRIPTION -2- W9145 W9145 SERIES SYMBOL 22-PIN 22-PIN 24-PIN 24-PIN I/O FUNCTION ColumnRow Inputs 1-4 & 18-22 1-4 & 20-24 I Keyboard inputs may be connected to either a standard keyboard, an inexpensive signal contact (Form A) keyboard, or electronic input from a µC. A valid key entry is defined by a single row being connected to a single column. XT, XT 6, 7 6, 7 I, O A built-in inverter provides oscillation by means of an inexpensive 3.579545 MHz crystal or ceramic resonator. T/P MUTE 8 8 O The T/P MUTE is a conventional CMOS inverter that pulls to VDD in the absence of keypad input and pulls to VSS when an address keypad entry is sensed (excluding the * and # keypads in pulse mode). When any keypad in row 5 and column 5 is pushed, the mute out remains at high level. MODE 14 16 I Pull to VSS to enable tone mode. Pull to VDD to enable pulse mode (10 ppS). HKS 9 9 I Hook switch input. When pulled to high, chip is in on-hook state (no operation). When pulled to low, chip is in offhook state (enabled for normal operation). This pin is pulled to VDD by internal resistor. Note: This pin operates in conjunction with the handfree control pins; for further information see description of handfree control pins below. B/M 16 16 I B/M = 1: Break/Make ratio is 60:40. B/M = 0: Break/Make ratio is 67:33. This pin has no function in tone mode. VDD, VSS 17, 5 19, 5 I Power input pins. X MUTE 13 15 O The X MUTE is a conventional CMOS inverter that in tone mode is active while a DTMF signal is being transmitted. In pulse mode, this output remains low at all times. -3- Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES Pin Description, continued SYMBOL 22-PIN 22-PIN 24-PIN 24-PIN I/O FUNCTION HFI , HFO - 12, 13 I, O Handfree control pins. A low pulse on HFI toggles on the handfree control state. Status of the handfree control state is indicated in the following table: CURRENT STATE NEXT STATE HFO INPUT HFO DIALING - Low HFI High Yes On Hook High HFI Low No Off Hook High HFI Low Yes On Hook - Off Hook Low Yes Off Hook Low On Hook Low No Off Hook High On Hook High Yes HOOK SW. KT 12 14 O LOCK 15 (W9145L W9145L only) 17 (W9145AL W9145AL I only) HFI pin is pulled to VDD by internal resistor. Key tone signal output. A 1.2 KHz key tone will be generated when any key is depressed in pulse mode or when function keys are depressed in tone mode. The function of this terminal is to prevent "0" dialing in and "9" dialing under PABX system long distance call control. When the first key input after reset is 0 or 9, all key inputs, including the 0 or 9 key, become invalid and the chip generates no output. The telephone is reinitialized by a reset. LOCK PIN FUNCTION VDD Floating DP / C5 15 (W9145 W9145 only) 10 17 (W9145A W9145A "0" dialing inhibited I During normal operation, the TEST pin should be tied to VDD, thereby inhibiting the single tone and setting the pulse rate to 10 ppS. O This pin is a CMOS inverter output. only) 10 "0," "9" dialing inhibited VSS TEST Normal dialing mode The timing diagram is shown in Figure 1. Flash key will cause DP / C5 to go active in either pulse or tone mode. -4- W9145 W9145 SERIES Pin Description, continued SYMBOL 22-PIN 22-PIN 24-PIN 24-PIN I/O DTMF 11 11 O FUNCTION In pulse mode, remains in low state at all times. In tone mode, will output a dual or single tone. Detailed timing diagram for tone mode is shown in Figure 2(a, b). OUTPUT FREQUENCY (Hz) Specified Actual Error % R1 697 699 +0.28 R2 770 766 -0.52 R3 852 848 -0.47 R4 941 948 +0.74 C1 1209 1216 +0.57 C2 1336 1332 -0.30 C3 1477 1472 -0.34 BLOCK DIAGRAM XT HKS XT B/M SYSTEM CLOCK GENERATOR MODE HFI X MUTE LOCK T/P MUTE TEST READ/WRITE COUNTER CONTROL LOGIC PULSE CONTROL LOGIC ROW (R1 to R5) HFO KEYBOARD INTERFACE DP/C5 RAM COLUMN LOCATION LATCH (C1 to C4) DTMF KT D/A CONVERTER ROW & COLUMN PROGRAMMABLE COUNTER -5- DATA LATCH & DECODER Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES FUNCTIONAL DESCRIPTION Keyboard Operation C1 C2 C3 C4 DP / C5 1 2 3 M1 MUTE R1 4 5 6 M2 CD R2 7 8 9 M3 F1 R3 */T 0 # SAVE F2 R4 RD S A P F3 R5 · MUTE: Mute key · CD: Call Disconnect · */T: * & PT key · RD: One-key Redial · S: Store · A: Auto dialing · P: Pause · M1 to M3: Memory 1 to 3 · SAVE: Save Memory · F1, F2, F3: 98/305/600 mS Normal Dialing OFF HOOK (or ON HOOK HFI ¡õ & ), D1 , D2 , ., Dn 1. D1, D2, ., Dn will be dialed out. 2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits. Redialing 1. OFF HOOK (or ON HOOK & HFI ¡õ ), D1 , D2 , ., Dn , BUSY RD a. The one-key redialing function timing diagram is shown in Figure 4. b. Once dialing of D1 to Dn is finished, pressing RD key will cause the pulse output pin to go low for 2.2 seconds break time and 600 mS pause will automatically be added. c. If the pulses of the dialed number 2. OFF HOOK (or ON HOOK , D1 & , D2 HFI ¡õ , ., ), D1 to Dn Dn have the BUSY, Come RD -6- not finished, ON HOOK RD , key will be ignored. OFF HOOK W9145 W9145 SERIES Or ( ON HOOK HFI ¡õ If RD , & HFI ¡õ ), D1 , D2 , ., Dn , BUSY, HFI ¡õ , Come RD is the first key after off-hook, only the redialing function will be executed and the pulse output pin will not go low for the break time of 2.2 seconds. Access Paus OFF HOOK (or ON HOOK & HFI ¡õ ), D1 , D2 , P , D3 , ., Dn 1. The pause function can be stored in memory. 2. The pause function may be executed in normal dialing, redialing, or repertory dialing. 3. The pause function timing diagram is shown in Figure 5. Pulse-to-tone ( */T) OFF HOOK (or D1' , ., , D2' ON HOOK & HFI ¡õ ), D1 , D2 , ., Dn , */T , Dn' 1. If the mode switch is set to pulse mode, then the output signal will be: D1, D2, ., Dn, Pause (3.1S) D1', D2', ., Dn'. (Pulse) (Tone) 2. If the mode switch is set to tone mode, then the output signal will be: D1, D2, ., Dn, * , D1' , D2', ., Dn' (Tone) (Tone) (Tone) 3. The device can be reset to pulse mode only by going on-hook; device remains in tone mode when the digits have been dialed out. 4. The PT function timing diagram is shown in Figure 6. Flash OFF HOOK (or ON HOOK & HFI ¡õ ), F 1. Flash key cannot be stored as a digit in memory. Flash key has first priority among keyboard functions. 2. The system will return to the initial state after the break time is finished. 3. The flash function timing diagram is shown in Figure 7. -7- Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES Number Store 1. OFF HOOK Mn (or Ln (or ) ON HOOK ON HOOK HFI ¡õ ), D1 ON HOOK & HFI ¡õ & (or , D2 , ., Dn , S , S , ) a. The dialing of D1, D2, ., Dn must be finished before S key may be pressed. b. D1, D2, ., Dn will be stored in memory location Mn or Ln and then dialed out. c. Mn = M1 to M3; Ln = 0 to 9, *, Pause. 2. OFF HOOK Mn (or Ln (or ) ON HOOK ON HOOK HFI ¡õ ), S ON HOOK & HFI ¡õ & (or , D1 , D2 , ., Dn , S , ) a. D1, D2, ., Dn will be stored in memory location Mn or Ln but will not be dialed out. b. P and */T keys can be stored as a digit in memory. In store mode, P is the pause function key. c. The store mode is released once the store function is completed or the state of the hook switch changes. Repertory Dialing 1. OFF HOOK (or ON HOOK & HFI ¡õ ), Mn 2. OFF HOOK (or ON HOOK & HFI ¡õ ), A (or ON HOOK & HFI ¡õ ), D1 , Ln Save Key 1. OFF HOOK If the dialing of D1 to Dn , D2 , ., SAVE is finished, pressing the SAVE key will cause D1 to Dn to be duplicated to the SAVE memory. 2. D1 ON HOOK to Dn Come OFF HOOK , SAVE will be dialed out after the SAVE key is pressed. Call Disconnect OFF HOOK CD The DP / C5 pin will go low (line break) when the CD key is pressed and the system will be reset to initial state. Mute Key OFF HOOK MUTE The mute output will be switched on as long as the MUTE key is depressed. -8- W9145 W9145 SERIES CD and MUTE key function timing diagram is shown in Figure 8. Mixed Dialing OFF HOOK (or ON HOOK 1. Normal dialing 2. Repertory dialing 3. Redialing + + & HFI ¡õ ), Repertory dialing + + Normal dialing Normal dialing + Repertory dialing Normal dialing + Repertory dialing a. Redialing and SAVE dialing are valid for first key-in only. b. The second sequence should not be performed until the first sequence is dialed out completely. ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATING UNIT VDD-VSS -0.3 to +7.0 V VIL VSS -0.3 V VIH VDD +0.3 V VOL VSS -0.3 V VOH VDD +0.3 V PD 120 mW Operating Temperature TOPR -20 to +70 °C Storage Temperature TSTG -55 to +150 °C DC Supply Voltage Input/Output Voltage Power Dissipation Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. DC CHARACTERISTICS VDD = 2.5V, FOSC = 3.58 MHz, TA = 25° C, unless otherwise noted PARAMETER Operating Voltage SYM. VDD Operating Current IOP Memory Retention IMR Standby Current Tone Output IS VTO CONDITIONS Tone Pulse Tone, Unloaded Pulse, Unloaded HKS = 1, TA = 25° C VDD = 1.0V HKS = 0, VDD = 2.5V Row Group, RL = 5 K -9- MIN. 2.0 2.0 - TYP. 0.6 0.2 0.1 MAX. 5.5 5.5 2 0.5 0.2 UNIT V V mA mA µA - 0.1 5 µA 130 150 170 Vrms Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES DC Characteristics, continued PARAMETER SYM. MIN. TYP. MAX. UNIT Column Group/Row Group VDD = 2.0-5.5V Pre-Emphasis CONDITIONS 1 2 3 dB - -30 -23 dB DTMF Distortion THD RL = 5 K HFO Drive/Sink IHFH VHFH = 2.0V 0.5 - - mA Current IHFL VHFL = 0.5V 0.5 - - mA Tone Output External Load Impedance RL THD < -23 dB 5 - - K Tone Output DC Level VDC VDD = 2.0-5.5V 1.0 - 3.0 V Tone Output Sink Current ITL VTO = 0.5V 0.2 - - mA Pulse Output IPH VPO = 2.0V -0.2 - - mA Drive/Sink Current IPL VPO = 0.5V 0.2 - - mA T/P MUTE Output IMH VMO = 2.0V -0.2 - - mA Drive/Sink Current IML VMO = 0.5V 2 - - mA Key Tone Output IKH VKO = 2.0V -0.5 - - mA Drive/Sink Current IKL VKL = 0.5V 0.5 - - mA X MUTE Drive/Sink ILH VLO = 2.0V -0.2 - - mA Current IIL VLO = 0.5V 0.2 - - mA Input Voltage Low VIL GND - 0.3 VDD V Input Voltage High VIH 0.7 VDD - VDD V Keypad Input IKD VI = 0V 10 30 80 µA Drive/Sink Current IKS VI = 2.5V 200 400 - µA Control Pin Input IIN HKS , MODE, TEST , B/M - - ±25 µA AC CHARACTERISTICS PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT Key-in Debounce TKID - 20 - mS Key-release Debounce TKRD - 20 - mS Key tone Delay TKD - 20 - mS - 10 - W9145 W9145 SERIES AC Characteristics, continued PARAMETER SYM. One-key Redial Break Time MIN. TYP. MAX. UNIT TRB - 2.2 - S One-key Redial Break Pause Time TRP - 600 - mS Pulse Mute Delay TMD B/M = 1 - 40 - mS B/M = 0 - 33.3 - mS B/M = 1 - 40 - mS B/M = 0 - 33.3 - mS Mode = 1 - 10 - ppS - 800 - mS B/M = 1 - 40:60 - % B/M = 0 - 33.3:66.7 - % Pre-digit Pause TPDP Pulse Rate TPR Interdigit Pause TIDP Make/Break Ratio M:B CONDITIONS Tone Duration TTD Auto Dialing - 93 - mS Intertone Pause TITP Auto Dialing - 93 - mS Flash Break Time TFB F1 - 98 - mS F2 - 305 - mS F3 - 600 - mS Pause Time TP - 3.1 - S Key Tone Frequency f8 - 1.2 - KHz - 11 - Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES TIMING WAVEFORMS HKS KEY IN 4 2 R TKRD TKID KT DP/C5 TPDP T/P MUTE TIDP TMD LOW DTMF LOW X MUTE OSCILLATION OSCILLATION OSC. MANUAL DIALING AUTO DIALING Figure 1. Pulse Mode Dialing Timing Diagram HKS KEY IN TKRD TKID TKID TKRD DTMF TTD TTD TITP TITP X MUTE T/P MUTE DP/C5 TKD KT OSC. OSCILLATION Figure 2(a). Tone Mode Normal Dialing Diagram - 12 - OSCILLATION W9145 W9145 SERIES Timing Waveforms, continued HKS R KEY IN TKID DTMF TTD TITP TITP X MUTE T/P MUTE DP/C5 KT OSC. OSCILLATION ON HOOK Figure 2(b). Tone Mode Redialing Timing Diagram HKS OFF HOOK ON HOOK HFI DP/C5 HFO T/P MUTE LOW X MUTE CHIP ENABLE Figure 3(a). Handfree Function Timing Diagram - 13 - Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES Timing Waveforms, continued HKS HFI DP/C5 HFO T/P MUTE LOW X MUTE CHIP ENABLE Figure 3(b). Handfree Function Timing Diagram HKS ON HOOK HFI DP/C5 HFO T/P MUTE LOW X MUTE CHIP ENABLE Figure 3(c). Handfree Function Timing Diagram - 14 - W9145 W9145 SERIES Timing Waveforms, continued LOW HKS R KEY IN T RB DP/C5 B B M TRP TPDP TKID TIDP TIDP T/P MUTE X MUTE LOW DTMF LOW OSC. OSCILLATION Figure 4. Pulse Mode Timing Diagram HKS KEY IN DP/C5 2 4 P 2 TKID TPDP T IDP TIDP TIDP TIDP T/P MUTE TIP DTMF LOW X MUTE LOW OSC. OSCILLATION Figure 5. Pause Function Timing Diagram - 15 - Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES Timing Waveforms, continued HKS KEY IN 4 */T 2 2 TKID DP/C5 TPDP TIDP TIDP T/P MUTE TP LOW DTMF X MUTE OSC. OSCILLATION Figure 6. PT Operation Timing Diagram in Normal Dialing LOW HKS KEY IN F TKID DP/C5 T FB T/P MUTE LOW X MUTE LOW DTMF OSC. OSCILLATION Figure 7. Flash Operation Timing Diagram - 16 - T ITP W9145 W9145 SERIES Timing Waveforms, continued HKS KEY IN CD MT CD MT MT HFI DP/C5 HFO T/P MUTE X MUTE KT CHIP ENABLE (MT = MUTE KEY) Figure 8. Mute Key Operation Timing Diagram - 17 - Publication Release Date: August 1996 Revision A4 W9145 W9145 SERIES Headquarters Winbond Electronics (H.K.) Ltd. No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5792697 http://www.winbond.com.tw/ Voice & Fax-on-demand: 886-2-7197006 Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27516023 FAX: 852-27552064 Taipei Office 11F, No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-7190505 FAX: 886-2-7197502 Note: All data and specifications are subject to change without notice. - 18 - Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2730 Orchard Parkway, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-9436668