EM91240AP EMC [ELAN Microelectronics Corp], EM91240AP Datasheet
EM91240AP
Related parts for EM91240AP
EM91240AP Summary of contents
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GENERAL DESCRIPTION The EM91240 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with 40-set memories. The EM91240 series provides necessary functions of telephone set for application in any environment, such as Pulse ...
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... EM91240 Pin Assignment EM91240AP COL5 COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS Keyboard Arrangement Type A COL1 COL2 ROW1 1 2 ROW2 4 5 ROW3 7 8 ROW4 */T 0 FUNCTIONAL BLOCK DIAGRAM COL1 Keyboard COL2 COL3 interface COL4/KT (column) COL5 XIN Oscillator XOUT ROW1 ...
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PIN DESCRIPTIONS Symbol ROW1~ROW4 Keyboard scan pins of row group. In idle state (HKS is “High” and HFO is “Low”), these pins stay “High impedance” level to prevent power consumption. Otherwise, these pins switch to “High” level for detecting keyboard ...
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FUNCTION DESCRIPTIONS Dialing signal selection The EM91240 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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Memory and other system applications. Storing : EM91240 series support two operating methods to store numbers into SAVE redial memory. Method 1 • To select Pulse or Tone mode. • Off-hook (or turn on HF function), push d1, d2, ...
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Pause (P) key operation The Pause (P) key is designed to support pause operation in dialing duration. “P” key can be stored in memory and it will occupy one digital position. • To select Pulse or Tone mode. • Off-hook ...
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SDO Keypad Encoded table: Digital key (b5,b4=0,0) keypad output b3,b2,b1,b0 0001 0010 0011 0100 0101 0110 0111 Display Function key (b5,b4=1,0) keypad ST output b3,b2,b1,b0 0000 Display S TORE ...
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Keypad,SDO format and LCD display reference table: Keypad bit5 “*”/ */”T” ...
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ABSOLUTE MAXIMUM RATINGS Items Power supply voltage Input voltage range Operating temperature Storage temperature Power consumption ELECTRICAL CHARACTERISTICS (Ambient temperature =2.5V unless otherwise noted, all voltages referenced Parameter Operating voltage Operating current(HKS=0) Memory ...
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ELECTRICAL CHARACTERISTIC (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 present duration Pause time and pulse to tone Flash time Flash pause time ...
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TIMING DIAGRAM HKS 2 KEY IN Tdb KT XMUTE PM SDO PO DTMF OSC. HKS KEY IN KT XMUTE PM SDO PO DTMF OSC. * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE ...
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LNB=2,3 HKS RD KEY IN Tdb KT XMUTE PM SDO PO DTMF OSC. LNB=2,3 HKS RD KEY IN Tdb KT XMUTE PM SDO PO DTMF OSC. * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH ...
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HKS 2 KEY IN KT XMUTE PM SDO PO Tidp DTMF OSC. HKS 2 KEY IN KT XMUTE PM SDO PO DTMF OSC. Figure 6. Pulse to Tone (P T) operating timing HKS KEY IN Tdb KT XMUTE PM SDO ...
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HKS KEY IN KT SDO <Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time HKS HF KEY IN XMUTE HFO PM SDO PO DTMF * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE 2 Tdb ...
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APPLICATION CIRCUIT * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE HFO HFI 12 11 DTMF VSS 13 10 VDD XMUTE 14 9 HKS XOUT 15 8 ROW1 XIN 7 16 ROW2 COL1 ...
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EM32100 Application Circuit : Package type : QFP 48 pins or chip form provided * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH ...
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EM32116 Application Circuit : Package type : QFP 64 pins or chip form provided * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE TEST1 SEG10 F32HZ SEG11 MS1 SEG12 MS2 SEG13 SDI SEG14 ...
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PACKAGE INFORMATION Example : EM 91240 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 SWITCHABLE DIALER WITH LCD INTERFACE SDIP MILIMETERS MIN. MAX. MIN 5. 0.381 ...