em91450 ELAN Microelectronics Corp, em91450 Datasheet
em91450
Related parts for em91450
em91450 Summary of contents
Page 1
... LCD driver and voice synthesizer. In this application, the dialing numbers and modern function operating icons can be displayed on LCD screen with LCD driver (EM32100 or EM32117 ). The EM91450 has a special I.P. P. detect function (Illegal Parallel Phone Detect) can prevent the illegal connect external Phone. The I.P.P. will detect the illegal user ...
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... XIN ROW1 XOUT HKS XMUTE VDD VSS DTMF HFI HFO DRING COL1 COL2 COL3 COL4/ */ RD/P EM91450 SERIES AND I.P.P. DETECT FUNCTION EM91450BP ROW4 3 16 ROW3 4 15 ROW2 5 14 ROW1 6 13 HKS 7 12 VDD 8 11 DTMF 9 ...
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... COL2 interface Output circuit COL3 (column) Memory I/O circuit XIN Oscillator XOUT Timing/Control circuit Keyboard ROW1 interface Input circuit (Row) ROW4 VDD HKS HFI Function EM91450 SERIES AND I.P.P. DETECT FUNCTION Row/Column programming counter latch D/A DTMF & converter decoder Pulse PO generator DRING 2.10.1999 3 ...
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... The RMUTE can be restored to "High" level when the first key entry is not the optioned lock-number . * This specification are subject to be changed without notice. EM91450 SERIES TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION Function 2 ...
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... FUNCTION DESCRIPTIONS Dialing signal selection The EM91450 series incorporated a special keyboard scanning function that is connecting a resistor (typically is 560 Kohms) on keyboard scan pin to select many telephone specifications. The specifications are described as following : a. Mode ROW1 Mode R-Vdd 20 PPS NR Tone R-Vss 10 PPS c. Flash time ...
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... Hold function (HDO pin switched to "Low"). • On-off hook once. • To press HD key over 93 ms. * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE (tone mode) EM91450 SERIES AND I.P.P. DETECT FUNCTION 2.10.1999 6 ...
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... 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 EM91450 series. To prevent the unavoidable long distance call, then EM91450 inhibits the key entry during Tdly. ...
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... The display of LCD panel "Hold","HF","RD" is corresponding to EM32117 with flag types. LOCK function The EM91450 serial provides 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 ...
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... 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 ). * This specification are subject to be changed without notice. EM91450 SERIES TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION 2.10.1999 9 ...
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... When I.P.P. function detect. XMUTE pin at "low" status (In On-Hook and HF turn OFF state), EM91450 will turn on HF and send alarm signal to telephone line. In alarm duration DTMF pin will continue sending "#","8" "8" signal. The DTMF signal will interfere the illegal user until the illegal user hang up the phone and the XMUTE pin detect " ...
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... IoL -0.2 - Vdc 0.5 - Vdtmf 142 160 Twist 1 2 THD - - ..... +V 2 )1/2]/[( )1/2 EM91450 SERIES AND I.P.P. DETECT FUNCTION ) SS Unit V +0. Fosc=3.579545 MHz) SS Max. Unit Condition 5.5 V unload 5.5 0.3 mA with pull up/down 0.5 resistor * 8 0.1 uA HKS=1,Vdd=1V 0.1 unload ...
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... Actual output (Hz) 697 699.1 770 766.2 852 847.4 941 947.9 1209 1215.8 1336 1331.6 1477 1471.8 EM91450 SERIES AND I.P.P. DETECT FUNCTION Condition sec. sec. Row3B, Row4B=NR Row3B, Row4B=NR, R-Vss Row3B,Row4B=R-Vss, NR Row3B,Row4B=R-Vss,R-Vss pps Row1 = R-Vdd Row1 = R-Vss ...
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... OSC. * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE 3 Tkt Tm T Tidp Figure 1. Pulse mode operating timing Td Titp Figure 2. DTMF mode operating timing EM91450 SERIES AND I.P.P. DETECT FUNCTION Tidp Hi-impedance 3 Titp Hi-impedance 2.10.1999 13 ...
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... This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE Tkt Tm Tidp Tidp Figure 3. Pulse mode LNB redial timing Tkt Td Td Titp Figure 4. DTMF mode LNB redial timing EM91450 SERIES AND I.P.P. DETECT FUNCTION Hi-impedance Titp Hi-impedance 2.10.1999 14 ...
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... SDO PO DTMF OSC. * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE RD Tidp Figure 5. Pause key operating timing */T 3 Tpt Tfp=300ms Tf Figure 7. Flash key operating timing EM91450 SERIES AND I.P.P. DETECT FUNCTION Tidp Hi-impedance 4 Hi-impedance Hi-impedance 2.10.1999 15 ...
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... SPB SPB Tbit Figure 8. SDO operating timing Figure 9. HF and HD operating timing 5 0 Tdly "0" digit dialing time Figure 10. Off-Hook delay time EM91450 SERIES AND I.P.P. DETECT FUNCTION Hi-impedance Thdrdb ms Hi-impedance Hi-impedance 2.10.1999 16 ...
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... The external ring detection circuit must send a low signal at the total ring cycle (Ton and Toff) RING DRING HKS RMUTE * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE Toff Figure 11. Timing of receiving an incoming call Figure 12. Timing of making an outgoing call EM91450 SERIES AND I.P.P. DETECT FUNCTION 2.10.1999 17 ...
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... TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION 12 11 DRING DRING RMUTE 13 10 HFO HFI HFO 14 9 VSS DTMF 15 8 XMUTE VDD 16 7 HKS XOUT 17 6 ROW1 XIN 18 5 COL1 ROW2 19 4 COL2 ROW3 20 3 ROW4 COL3 KT/COL4 SDO HDO EM91450 SERIES 2.10.1999 18 ...
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... APPLICATION CIRCUIT : KEY BOARD AND HOLD * This specification are subject to be changed without notice. EM91450 SERIES TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION 2.10.1999 19 ...
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... TONE/PULSE DIALER WITH LCD INTERFACE 80 SEG10 79 SEG11 27 MS1 78 SEG12 28 MS2 77 SEG13 29 SPARE1 76 SEG14 30 SPARE2 75 SEG15 31 SDI 74 SEG16 32 HKS 73 SEG17 33 VDD 72 SEG18 SEG19 SEG20 36 VC1 69 SEG21 37 VC2 68 SEG22 38 VSS 67 SEG23 39 XIN 66 SEG24 40 XOUT 65 SEG25 58 SEG26 EM91450 SERIES AND I.P.P. DETECT FUNCTION 2.10.1999 20 ...
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... This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE 36 MS1 SEG6 35 MS2 SEG7 34 SDI SEG8 33 HKS SEG9 32 VDD NC 31 XIN SEG10 30 NC SEG11 29 XOUT SEG12 28 VSS SEG13 27 24/12 SEG14 26 ENRTC SEG15 25 NC SEG16 EM91450 SERIES AND I.P.P. DETECT FUNCTION 2.10.1999 21 ...
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... E 7.620 8.255 .300 .325 E1 6.096 7.112 .240 .280 e 2.286 2.794 .090 .110 eB - 10.92 - .430 L 2.921 4.064 .115 .160 EM91450 SERIES AND I.P.P. DETECT FUNCTION PDIP MILIMETERS INCHES DIM MIN. MAX. MIN. MAX 6.350 - - A1 0.381 - .015 B 0.356 0.558 .014 B1 1 ...
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... D 31.24 .300 .325 E 7.620 .245 .260 E1 6.223 .090 .110 e 2.286 .330 .400 eB 8.636 .115 .160 L 2.921 EM91450 SERIES AND I.P.P. DETECT FUNCTION PDIP (skinny) INCHES MAX. MIN. MAX. 4.572 - .180 - .015 - 0.558 .014 .022 1.778 .050 .070 0.381 .008 ...
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... B1 0.914 1.116 0.036 C 0.204 0.304 0.008 D 36.70 37.34 1.445 E1 13.84 14.10 0.545 e 1.727 1.829 0.068 eB 15.24 17.78 0.600 D1 0 0.127 0 L 2.921 3.429 0.115 EM91450 SERIES AND I.P.P. DETECT FUNCTION INCHES MAX. 0.200 - 0.165 0.022 0.044 0.012 1.470 0.555 0.072 0.70 0.005 0.135 2.10.1999 24 ...