IL91214 INTEGRAL | Alldatasheet

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Tone/Pulse Dialer with Flash Function

ORDERING INFORMATION

TA = -20° to 70° C for all packages IL91214A and IL91214B are tone/ pulse dialers designed for providing standard DTMF or pulse signals. The ICs enable to: - generate standard DTMF or pulse signals of dialing as well as “flash” pulses; - store and redial last number; - generate pause in the transmitted package of dial signals; ICs are designed to be used in telephone sets. D SUFFIX SOIC KEYBOARD LOGIC REDIAL MEMORY

32 DIGITS

OSC. CONTROL LOGIC MODE IN HK INPUT LOGIC DTMF GENERATOR VDD TONE Fig. 1. Block diagram.

IL91214 A, IL91214B PIN DESCRIPITION Pin # A B Designation Description 1 1 HK Hook switch input 2 2 MODE IN MODE IN = VDD: pulse mode, 10 Hz, М/В = 1/2, MODE IN = VSS: tone mode, MODE IN = floating mode,

20 Hz, М/В = 1/2

4 4 OSCO Oscillator output 5 5 VSS Ground 6 6 VDD Supply output 7 7 TONE Tone dialing output 8 8 XMIT MUTE Dialing transmission mute output

9 MODE OUT Mode output pin

10 KT Key-in tone output

9 11 DP Dialing pulse output 10 12 C1 Keyboard column input 11 13 C2 Keyboard column input 12 14 C3 Keyboard column input 13 15 R1 Keyboard row input 14 16 R2 Keyboard row input 15 17 R3 Keyboard row input 16 18 R4 Keyboard row input Keyboard Assignment R4HK MO DE IN OS CI OS CO XM IT M UTE DP 06 11 Vs s Vd d TO NE R4HK MODE IN OSCI OSCO XMIT MUTE DP Vss Vdd TONE 09 10 MODE OUT KT IL91214B IL91214A 1. */T – At Pulse mode this key works as Pulse -> DTMF key (T key), at DTMF mode the key works as *key. */T key RD# 0*/T P9 87 F26 5 4 F13 21 C1 C2 C3 C4 will occupy one memory digit in either use. 2. F1 – Flash key. The break time is 297ms 3. F2 – Flash key for break time 640ms 4. P – Pause key (2.2 seconds) 5. RD – One key redial key 6. # - At pulse mode this key input is neglected, at DTMF mode this key works as # key.

IL91214 A, IL91214B

IL91214 A, IL91214B DC electrical characteristics (VDD = 3.5 V, VSS = 0 V, FOSC = 3.579 МHz, T = 25OC, unless otherwise specified) Parameter Symbol Min. Typ Max. Condition 2.0 5.5 Pulse mode Supply voltage, V VDD 2.0 5.5 Tone mode Memory retention voltage, V VMR 1 Memory retention current, uА * IMR 0.05 0.4 VDD = 1.0 V HK = VDD IDDP 0.32 1.0 Pulse Operation current, мА IDDT 0.6 2.0 Tone All outputs unloaded 0.03 0.05 HK=VD DStandby current, uА * ISO 0.5 10 НК=VSS All outputs unloaded. No key selected. VDD=1.5V VIH 0.8 VDD VDD Input voltage, V VIL 0 0.2 VDD VDD = 3.5 V Input current R1-R4, uА IR 115 VOC 584 730 876 Column Tone out voltage, мV VOR 456 570 684 Row VDD=3.5V RL=5К Sink current XMUTE, мА IOL1 0.9 5.3 VDD=3.5V, VOL=0.4V Sink current DP, мА IOL2 1.1 5.3 VDD=3.5V, VOL=0.4V Distortion, % DIS % 1 5 * - in this mode IC functioning is not guaranteed.

IL91214 A, IL91214B AC characteristics (VDD = 3.5 V, VSS = 0 V, FOSC = 3.579 МHz, T = 25OC, unless otherwise specified) Condition Parameter Symbol Min. Typ Max. Dialing speed, pps 33.3 10 M/B=1/2 Make time, мs TM 16.7 20 M/B=1/2 66.6 10 M/B=1/2 Break time, мs ТВ 33.3 20 M/B=1/2 824 10 pps Inter-digit pause time, мs TIDP 458 20 pps Pause time, s TPAU 2.2 Auto-redial break time, s TAOBK 2.2 Delay time key valid to signal out, мs TD 0 Key-in debounce, мs TKD 21 Key-in tone duration, мs TKTD 23 Key-in tone frequency, Hz FKT 437 Minimal tone duration time, мs TMFD 94 Minimum tone inter-digit pause, мs TTIDP 96 Redial tone duration, мs TMFDR 94 Redial tone inter-digit duration, мs TTIDPR 96 Values of generated frequencies R/C Frequency Error, % Unit Conditions R1 697 + 0.31 Hz R2 770 + 0.19 Hz R3 852 + 0.03 Hz R4 941 + 0.10 Hz С1 1.209 + 0.57 Hz С2 1.336 - 0.32 Hz С3 1.477 - 0.35 Hz FOSC = 3.579 МHz Absolute maximum ratings Parameter Absolute maximum value Supply voltage Input voltage Output voltage Output voltage (DP, XMIT MUTE). Tone output current Power dissipation Storage temperature VDD VIN VOUT VOUT ITONE PD TSTG ≤ 6.0V VSS-0.3V ~ VDD+0.3V VSS-0.3V ~ VDD+0.3V ≤1.2V ≤ 50 мА ≤ 500 мW -40ОС ~ +125ОС

IL91214 A, IL91214B 1. Pulse dialing mode. КТ HK Key input XMIT MUTE 21 мs TM TIDP TM TD TKTD (23 мs), f = 437 Hz 3 2 1 TKD : debouncing time 21 мs DP TM TB 2. Tone dialing mode. HK Key input 9 *4 3 3. Redialing. XMIT MUTE КТ TKD TD TMFD 2.3 мs 2.3 мs 2.3 мs 2.5 мs TONE TTIDP MODE OUT HK Key input КТ XMIT MUTE TMFDRTD RD 2.5 мs TONE MODE OUT TTIDPR

IL91214 A, IL91214B 4. Switching mode operation (MODE IN control). 2 3 */T 6 4 XMIT MUTE HK Key input MODE IN КТ DP MODE OUT TIDPTD TMTIDPTM TPAU TMFD TONE 5. Switching mode operation (*/T key entry). 2 3 */T 6 4 TMTIDPTM HK Key input КТ MODE IN DP MODE OUT XMIT MUTE TONE TMFDTPAU TD TIDP 2.5 мс 2.5 мс

IL91214 A, IL91214B 6. One key redial using RD key (DTMF mode for example). HK Key input XMIT MUTE RD2 3 TAOBK 2.5 мs TD TD 2.5 мs DP TONE MODE OUT 7. Flash dialing XMIT MUTE Key input HK 2.5 мс 2.5 мs TPAU TFSH 3 4 F 6 DP MODE OUT TONE

IL91214 A, IL91214B IL91214A/B

IL91214 A, IL91214B N SUFFIX PLASTIC DIP (MS - 001BB) Symbol MIN MAX A 18.67 19.69 B 6.1 7.11 C 5.33 D 0.36 0.56 F 1.14 1.78 G H J 0° 10° K 2.92 3.81 NOTES: L 7.62 8.26 1. Dimensions “A”, “B” do not include mold flash or protrusions. M 0.2 0.36 Maximum mold flash or protrusions 0.25 mm (0.010) per side. N 0.38 D SUFFIX SOIC (MS - 012AC) Symbol MIN MAX A 9.8 10 B 3.8 4 C 1.35 1.75 D 0.33 0.51 F 0.4 1.27 G H J 0° 8° NOTES: K 0.1 0.25 1. Dimensions A and B do not include mold flash or protrusion. M 0.19 0.25 5.72 2.54 7.62 1.27 Dimension, mm Dimension, mm A BH C K C M J F M P G D R x 45 SEATING PLANE 0.25 (0.010) M T -T- L H M J A B F G D SEATING PLANE N K 0.25 (0.010) M T -T- C

IL91214 A, IL91214B N SUFFIX PLASTIC DIP (MS - 001AC) Symbol MIN MAX A 22.35 23.37 B 6.1 7.11 C 5.33 D 0.36 0.56 F 1.14 1.78 G H J 0° 10° K 2.92 3.81 NOTES: L 7.62 8.26 1. Dimensions “A”, “B” do not include mold flash or protrusions. M 0.2 0.36 Maximum mold flash or protrusions 0.25 mm (0.010) per side. N 0.38 D SUFFIX SOIC (MS - 013AD) Symbol MIN MAX A 10.1 10.5 B 7.4 7.6 C 2.35 2.65 D 0.33 0.51 F 0.4 1.27 G H NOTES: J 0° 8° 1. Dimensions A and B do not include mold flash or protrusion. K 0.1 0.3 for A; for B ‑ 0.25 mm (0.010) per side. P 10 10.65 R 0.25 0.75 2.54 7.62 1.27 Dimension, mm Dimension, mmA BH C K C M J F M G D R x 45 SEATING PLANE 0.25 (0.010) M T -T- L H M J A B F G D SEATING PLANE N K 0.25 (0.010) M T -T- C