TECHNICAL DATA IL91260C 10 Memory Tone/Pulse Dialer High-Performance Silicon-Gate CMOS The IL91260C is tone/pulse switchable dialer with ten 16-digit number memories and 32-digit redial memory. Pulse to tone mode switching is performed via a slide switch. • 32-digit redial memory (31 digits in tone mode) • Ten indirect memories, 16 digits in pulse mode, 15 digits in tone mode • Tone/Pulse mode switching via slide switch (4.1 second pause inserted automatically) • Wide operating voltage: 1.8 V ∼ 5.5 V • Uses 480 KHz ceramic resonator • Low memory retention current • Selectable Make/Break ratio • Dial Pulse Rate: 10 pps ORDERING INFORMATION IL91260CN TA = -20° to 70° C PIN ASSIGNMENT LOGIC DIAGRAM PIN 11 = GND PIN 10 = VCC Keyboard Assignments* 1 4 7 * 2 5 8 0 3 6 9 # S A/L P R C1 C2 C3 C4 R1 R2 R3 R4 S A/L P R : Store : Auto/Location : Pause : Redial IL91260C Pin Description Pin No. Designation Description 1 R1 2 R2 3 R3 Keyinputs. When a row and a column are connected, a key operation is activated. Scanning signals are present on both the row and column pins during a valid key-in condition. 4 R4 5 HK Hook switch input. When HK = VCC, an ON-Hook state exists. When HK = GND, an Off-Hook state exists. 6 M/B Dial pulse Make/Break ratio select input. If M/B = VCC , the Make/Break ratio is 1/2. If M/B = GND, the Make/Break ratio is 2/3. 7 MODE SELECT 8 9 OSCI OSC0 Oscillator I/O. A 480 KHz ceramic resonator and two 100 pF serial loading capacitors form a complete oscillator circuit. The circuit is activated when HK is low. Oscillator start-up time is typically 10 ms. 10 VCC Positive power supply. 11 GND Negative power supply. 12 TONE DTMF signal output. Pull-down load resistance is 10,000 Ω. The minimum tone and IDP durations are built-in for both normal dialing and redialing. 13 XMUTE 14 DP Dial pulse output. This pin is an N-channel open drain output. When DP output is low (switched on), it serves as a break signal in Pulse dialing. For other operations, DP output is normally high impedance (switched off). 15 C1 16 C2 17 C3 Keyinputs. When a row and a column are connected, a key operation is activated. Scanning signals are present on both the row and column pins during a valid key-in condition. 18 C4 Pulse/DTMF mode select input. If MODE SELECT = VCC , Pulse mode is in effect. If MODE SELECT = GND, DTMF mode is in effect. Transmit mute output. This is an N-channel open drain output. The output transistor is switched on while a sequence of digits is being dialed (for both Pulse and Tone modes). Otherwise, it is switched off. TECHNICAL DATA Operation Procedures 5. (ii) On/Off-hook store: 0 - 0 ↓, S , DP . . . DP or Dt . . . Dt , A/L , LOCi 6. Dialing from Repertory Memory 0 - 0 ↑, A/L , LOCi, ZiZiZi 0 - 0 ↓ Symbol Definitions: a. Dt : tone digit, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, # DP : Pulse digit, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 b. LOCi : i = 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 c. ZiZiZi : Conversation mode d. 0 - 0 ↑ : OFF-HOOK e. 0 - 0 ↓ : ON-HOOK f. : Input Level from Low to High g. : Input Level from High to Low Functional Description 1. N-Channel Open Drain Output - DP, XMUTE Recommended dialing, redialing, mixed dialing and storing operations: 1. Normal dialing in pulse mode 0 - 0 ↑ , DP . . . DP, ZiZiZi 0 - 0 ↓ 2. Normal dialing in tone mode 0 - 0 ↑ , Dt . . . Dt, ZiZiZi 0 - 0 ↓ 3. Mixed dialing in pulse-to-tone mode 0 - 0 ↑ , DP . . . DP, MODE SELECT , Dt . . . Dt, ZiZiZi 0 - 0 ↓ 4. Redialing 0 - 0 ↑ , DP . . . DP 0 - 0 ↓, 0 - 0 ↑, R, ZiZiZi, 0 - 0 ↓ 0 - 0 ↑ , Dt . . . Dt 0 - 0 ↓, 0 - 0 ↑, R, ZiZiZi, 0 - 0 ↓ Storing Numbers to Repertory Memory (i) Off-hook Store 0 - 0 ↑, S , DP . . . DP or Dt . . . Dt , A/L , LOCi, 0 - 0 ↓ Figure 1. 2. DTMF Generator The digitally synthesized sinewave of the IN91260 series is well designed, with a 6 level, 12 segment, 1/2 VCC reference voltage. The THD (Total Harmonic Distortion) of the DTMF output is typically 1%, when VCC = 2.5 V to 5.5 V and frequency is in the 500 HZ to 3400 HZ band. MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) -0.3 to +6.0 V VIN DC Input Voltage (Referenced to GND) -0.3 to VCC +0.3 V VOUT DC Output Voltage (Referenced to GND) -0.3 to VCC +0.3 V VOUT DC Output Voltage (DP, XMUTE) -0.3 to 1.2 V ITONE DC Output Current(Tone) 50 mA 500 mW -40 to +125 °C PD Tstg * Power Dissipation in Still Air, Storage Temperature ** Plastic DIP Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. ** Durating: -10 mW/°C from 65°C to 70°C. TECHNICAL DATA RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit 1.8 5.5 V VCC DC Supply Voltage (Referenced to GND) VIN DC Input Voltage (Referenced to GND) 0 VCC V DC Output Voltage (Referenced to GND) 0 VCC V -20 +70 °C VOUT TA Operating Temperature This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or VOUT)≤VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND, VCC =1.8 V to 5.5 V, TA = -20 to +70°C) Guaranteed Limits Symbol Parameter VIH Min Max Unit High-Level Input Voltage 0.8VCC VCC V VIL Low-Level Input Voltage 0 0.2VCC V VMR Minimum Memory Retention Voltage VCC = 1.0 V 1.5 Single Column Tone Output Amplitude RLOAD = 10 KΩ VCC = 2.5 V 540 640 VOC * RLOAD = 10 KΩ VCC = 5.5 V 100 1300 VOR * Single Row Tone Output Amplitude RLOAD = 10 KΩ VCC = 2.5 V 410 490 RLOAD = 10 KΩ VCC = 5.5 V 850 990 IC * Column Input Current VIN =3.5 V All outputs unloaded 0.6 2.0 mA IR* Row Input Current VIN = 0 V All outputs unloaded 5 50 µA IOL1 Minimum Sink Output Current DP, XMUTE VCC = 3.5 V, VOL = 0.4 V 0.7 mA VCC = 2.0 V, VOL = 0.4 V 0.2 mA Maximum Memory Retention Current VCC = 1.0 V, HK = VCC All outputs unloaded 0.6 VCC=3.5 V 0.7 IOL2 IMR ICCP Maximum Supply Operation Current ICCT Test Conditions VCC=5.5 V VCC=3.5 V VCC=5.5 V ISD TWIST VV DIS% * @ 25 °C Oscillator running; all outputs unloaded, VIL = 0, VIH = VCC Maximum Standby Current VCC = 2.5 V, HK = GND All outputs unloaded Pre.-emphasis VCC = 3.5 V Valley of Single Tone VCC = 3.5 V Distortion *Note 1, VCC = 3.5 V V 2.1 1.3 3.9 mVp-p mVp-p µA mA mA 7.0 µA 1 3 dB 0.3 6.0 VDD 6.0 % IL91260C Note 1: DIS% = 100.(V12 + V22 +. . . + Vn2) 1 (VOC2 + VOR2) /2 1/2 a. V1 . . . Vn are the intermodulation or the harmonic frequencies in the 500 Hz to 3400 Hz band. b. VOC and VOR are the individual frequency components of the DTMF signal. AC ELECTRICAL CHARACTERISTICS(All Voltages referenced to GND. VCC = 1.8 V to 5.5 V, TA = -20 to +70°C, FOSK = 480 KHz) Guaranteed Limits Symbol Parameter Test Conditions Min Max Unit M/B = 1/2 30 35 ms M/B = 2/3 38 42 M/B = 1/2 64 69 M/B = 2/3 57 63 M/B = 1/2 790 815 M/B = 2/3 790 815 M/B = 1/2 820 860 M/B = 2/3 820 860 M/B = 1/2 0 3 M/B = 2/3 0 3 PULSE TM TB TIDP Make Time (Figure 2) Break Time (Figure 2) Inter Digit Pause Time (Figure 2) TPDP Pre-Digit Pause (Figure 2) TMDP XMUTE, Delay Time (Figure 2) ms ms ms ms TONE TMFD Minimum Tone Duration (Figure 3) 100 120 ms TTIDP Minimum Tone Inter-Digit Pause (XMUTE) (Figure 3) 100 120 ms TTPDP Tone Output Pre-Digit Pause (Figure 3) 115 145 ms TMDT XMUTE Delay Time (Figure 3) 100 120 ms Auto Pause Time (Figure 4) 3.9 4.3 s TAP TSTART Oscillator Start-up Time (Figure 2) 4 13 ms TMS XMUTE Start-up Time (Figure 2) 25 35 ms TKD Keypad Debounce Time (Figure 2) 19 25 ms FKS Key Scan Frequency 365 390 Hz KEY-IN C1 ∼ C4, R1∼ R4 IL91260C Comparisons of Specified vs. Actual Tone Frequencies R/C Spec. Actual Error(%) Unit R1 697 695.65 -0.19 Hz R2 770 769.23 -0.1 Hz R3 852 851.06 -0.11 Hz R4 941 941.18 +0.02 Hz C1 1,209 1,212.12 +0.26 Hz C2 1,336 1,333.33 -0.2 Hz C3 1,477 1,481.48 +0.3 Hz Figure 2. Pulse Mode Figure 3. Tone Mode Conditions FOSC =480 KHz IL91260C Figure 4. Normal Pulse to Tone mixed dialing via slide switch EXPANDED LOGIC DIAGRAM IL91260C N SUFFIX PLASTIC DIP (MS - 001AC) A Dimension, mm 18 10 B 1 9 Symbol MIN MAX A 22.35 23.37 B 6.1 7.11 5.33 C F L C D 0.36 0.56 F 1.14 1.78 G 2.54 H 7.62 -T- SEATING PLANE N K G M D 0.25 (0.010) M T NOTES: 1. Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side. H J J 0° 10° K 2.92 3.81 L 7.62 8.26 M 0.2 0.36 N 0.38