EM91450CP ELAN Microelectronics Corp, EM91450CP Datasheet
EM91450CP
Related parts for EM91450CP
EM91450CP Summary of contents
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GENERAL DESCRIPTION The EM91450 is a series of tone/pulse switchable dialers that is composed of T/P dialer. The EM91465 provide modern LCD driver's series data output port, which can display modern function operating icons. The EM91450 series provide necessary functions ...
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... EM91450 Pin Assignment EM91450AP 1 16 COL4/ COL3 3 14 COL2 4 13 COL1 5 12 XIN 6 11 XOUT 7 10 XMUTE 8 VSS EM91450CP SDO 1 20 COL4/ COL3 3 18 COL2 4 17 COL1 5 16 XIN 6 15 XOUT 7 14 XMUTE 8 13 VSS 9 12 HFI 10 11 Keyboard Arrangement ROW1 ...
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FUNCTIONAL BLOCK DIAGRAM COL4/KT XMUTE PIN DESCRIPTIONS Symbol ROW1~ROW4 Keyboard scan pins of row group. In idle state (HKS is "High" and HFO is "Low"), these pins stay ÒHigh impedanceÓ level to prevent power consumption. Otherwise, these pins switch to ...
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Symbol HKS Control signal inputs pin that is corresponding hook switch status. When handset was left from cradle, this pin must be connected to "Low" level to operate all functions. Otherwise, this pin must be connected to "High" level to ...
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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. ...
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Redialing: After normal dialing, directly keying F key (or On-Off hook once) and keying RD key on keyboard. The numbers that are stored into LNB memory will be dialed output. Pause (P) key operation The Pause (P) key is designed ...
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Turn on Handfree (HF) function. (HFO pin switched to "High") Special Note: A 300 ms delay time (Tdly) at the first Off-Hook or turn on Handfree that is a special designed to avoid a rapid key entry (dummy number ...
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SDO (Serial Data Output) function The SDO is serial data output which format is same as UART protocol. SDO function is designed to drive LCD driver and voice synthesizer. So the dialing numbers can be display on LCD screen with ...
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Normal dialing : Set lock function to none lock mode (without resistor connected to COL1 pin) or set password equal to 000. In this case, the dialer is operated in normal mode and all functions work at unlimitation. Dialing via ...
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I.P.P. DETECT function The EM91450 series provide the I.P.P. function to pretect illegal connect. I.P.P means Illegal Parallel Phone Detect. I.P.P. function depend on XMUTE pin and HKS, HF status. When in the ON-HOOK condition and HF turn off, the ...
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ABSOLUTE MAXIMUM RATINGS Items Power supply voltage Input voltage range Operating temperature Storage temperature Power consumption DC ELECTRICAL CHARACTERISTICS o (Ambient temperature =2.5V unless otherwise noted, all voltages referenced Parameter Operating voltage Operating ...
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AC ELECTRICAL CHARACTERISTIC o (Ambient temperature =2.5V unless otherwise noted, all voltages referenced to Vss,Fosc=3.579545 MHz) DD Parameter Keyboard debounce time Key tone signal: frequency duration Pause time Pulse to Tone waiting time Flash time Pulse ...
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TIMING DIAGRAM HKS 2 KEY IN Tdb KT XMUTE SDO PO DTMF OSC. Tdly HKS 2 KEY IN Tdb KT XMUTE SDO PO DTMF OSC. * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE ...
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LNB=2,3 HKS RD/P KEY IN Tdb KT XMUTE SDO PO DTMF OSC. Tdly LNB=2,3 HKS RD/P KEY IN Tdb KT XMUTE SDO PO DTMF OSC. Tdly * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD ...
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HKS 2 KEY IN KT XMUTE SDO PO DTMF OSC. HKS 2 KEY IN KT XMUTE SDO PO DTMF OSC. Figure 6. Pulse to Tone (P T) operating timing HKS F KEY IN Tdb KT XMUTE SDO PO DTMF OSC. ...
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HKS KEY IN KT SDO <Note>L=Least significant bit,M=Most significant bit, SB=START bit , SPT=STOP bit HKS HD HF KEY IN HFO HDO XMUTE SDO PO MELODY @ : It can be triggled by extension telephone set for hold function release ...
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RING Ton DRING HKS RMUTE * 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 ...
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APPLICATION CIRCUIT : CONTROL AND IPP DETECT * This specification are subject to be changed without notice. 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 ...
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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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APPLICATION CIRCUIT : LCD DRIVER USE EM32117 1 SEG0 2 SEG1 3 SEG2 4 SEG3 5 SEG4 6 SEG5 7 SEG6 8 SEG7 9 SEG8 10 SEG9 11 SEG10 12 SEG11 13 SEG12 14 SEG13 15 SEG14 16 SEG15 17 ...
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APPLICATION CIRCUIT : LCD DRIVER USE EM32100 COM3 COM2 COM1 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 * This specification are subject to ...
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PACKAGE INFORMATION Example : EM 91450 P (1) (2) (3) (1) ELAN MICRO. pefix (2) Type number (3) Package code: 18/20/28 Lead Plastic Package PDIP MILIMETERS INCHES DIM MIN. MAX. MIN. MAX 5.334 - .210 ...
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Lead Plastic Package-Skinny PDIP (skinny) MILIMETERS DIM MIN. MAX 4.752 A1 0.381 - B 0.356 0.558 B1 1.27 1.778 C 0.204 3.556 D 25.90 26.67 E 7.620 8.255 E1 6.223 6.604 e 2.286 ...
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SDIP Package DIM * This specification are subject to be changed without notice. TONE/PULSE DIALER WITH LCD INTERFACE SDIP MILIMETERS MIN. MAX. MIN 5. 0.381 - ...