IL91210EN ETC | Alldatasheet

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Technical content

Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by TONE/PULSEDIALER The IL91210EN is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58 MHz crystal or ceramic resonator. It provides dialing pulse (DP) or dual tone multi-frequency (DTMF) dialing. A standard 4x4 matrix keyboard can be used to support either DP or DTMF modes. Up to 32 digits can be saved in the on -chip RAM for reading. In the DTMF mode, minimum tone duration and minimum intertone pau se are provided for rapid dialing. Maximum tone duration is dependent upon the key depression time in manual dialing.

  • One touch redial operation
  • Tone/Pulse switchable
  • 32-digit capacity for redialing
  • Built-in power up reset circuit
  • PABX auto-pause is 2.2 second
  • DTMF Timing: Manual dialing: minimum duration for bursts and pauses Redialing: calibrated timing
  • Wide operating voltage range: 2 V to 5.5 V
  • Uses inexpensive ceramic resonator (3.58 MHz)
  • Digits dialed manually after redialing are cascadable and stored as additional digits for the next redialing
  • Automatic mixed redialing (last number redial) of pulse to DTMF with multiple automatic access pauses
  • Four extra function keys: flash, pause, redial and DP or DTMF mixed dialing
  • Four-by-four (or 2 of 8) keyboard can be used
  • Low standby current
  • Dial Pulse Rate: 10 pps DC ELECTRICAL CHARACTERISTICS (VCC =3.5 V,FOSC=3.579 MHz, TOP=+25°C) Guaranteed Limits Symbol Parameter Test Conditions Min Max Unit VCC DC Supply Voltage 2.0 5.5 V VMR Minimum Memory Retention Voltage 1.0 V VOC Column 584 876 VOR Tone Output Voltage Row VCC = 3.5 V RL = 5KΩ 456 684 mVp-p IOL1 Minimum Output Current, XMUTE, KT, MODEOUT VOL = 0.4 V 0.5 mA IOL2 Minimum Output Sink Current, DP VOL = 0.4 V 0.6 mA IMR Memory Retention Current VCC = 1.0 V, HK = VCC All outputs unloaded 0.6 µA ICCP Pulse mode 1.0 ICCT Maximum Operation Current Tone mode All outputs unloaded 2.0 mA ISBP Pulse mode HK=VCC=1.5 V 0.05 ISBT Maximum Standby Current Tone mode HK=GND All outputs unloaded. No key selected µA

ORDERING INFORMATION

TA = -20° to 70° C

Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by DIS% Distortion 7 %

Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by AC ELECTRICAL CHARACTERISTICS Symbol Parameter Test Conditions Typ Unit M/B = 1/2 33.3 TM Make Time M/B = 2/3 40 ms M/B = 1/2 66.6 TB Break Time M/B = 2/3 60 ms TIDP Inter Digit Pause Time 824 ms TPAU Pause Time 2.2 sec TROBK Auto-redial Break Time 2.2 sec TMFD Minimum Tone Duration Time 94 ms TTIDP Minimum Tone Inter-digit Pause 96 ms F1 96 TFSH Flash Time F2 640 ms APPLICATION CIRCUIT T* RD P 987 654 321 18 1311 IN91210 XMUTE DPMS HK Vss M/B OSCO Vdd TONE OSCI SB1 100V 3,9V ZQ-3,58MHz VT7-H945 VT6-C2001 VT5-H945 VT4-2N5401 VT3-2N5551 VT2-H945 VT1-H945 C11=0,1mk C10=10mkx16V C9=1mkx50V C8=0,1mk C7=0,1mk C6=1nF C5=4,7nF C4=30pF C3=30pF C2=47mkx16V C1=1mkx250V R27=10 R26=56K R24=56 R25=20 R23=1K R22=10K R21=4,7K R20=390K R19=8,2K R18=10K R17=560 R16=33 R15=1K R14=390K R13=1K R12=2,2K R11=33K R10=100K R9=1K R8=100K R7=470K R6=1M R5=270K R4=470 R3=390K R2=1K R1=10M R13 BM1 R14 VT5 R16 R17 R15 VD12 VD11 R18 R19 C8 VD10 C9 R20 C10 R21 R22 VT6 R25 R24 R23 C11 R26 BF1 R27 VT7 VT3 ZQ1 R12 VT4 R11R10 R9VD9 SA4 SA3 VT2 R6VD6 R5 VD7 VD8 VT1 BQ1 SA1 VD5 VD1-VD4 RU1