EM91415BP ELAN Microelectronics Corp, EM91415BP Datasheet

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EM91415BP

Manufacturer Part Number
EM91415BP
Description
Tone/pulse switchable dialer with LCD interface and dual tone melody generator
Manufacturer
ELAN Microelectronics Corp
Datasheet

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GENERAL DESCRIPTION
FEATURES
ORDERING INFORMATION
Versions list and function outline
* This specification are subject to be changed without notice.
VERSION
EM91415A
EM91415B
EM91415C
EM91415D
Note : PDP = Pocket Dialer Prevented
The EM91415 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with
13 set memories. The EM91415 series provide necessary functions of telephone set for application in any
environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone ,and lock functions.
The lock function is designed to inhibit toll dialing operation. Beside this, melody generator, ring detector and
SDO (Serial Data Output) functions are provided in advance version. Melody generator will output dual-tone
music in line hold duration. Ring detector can prevent illegal dialing from pocket dialer. The SDO is designed
to drive LCD driver and voice synthesizer. In this application, the dialing numbers can be displayed on LCD
screen with EM32100 ( or EM32116 ).
• Tone/Pulse switchable.
• Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate,
• SDO function supports LCD driver and voice synthesizer to indicate dialing numbers.
• Line hold function is designed for stopping conversation temporality.
• Melody generator provides music on hold function.
• Lock function provides conventionality key lock and password lock operations.
• Ring detector is designed to prevent illegal dialing from pocket dialer.
• 13 set one touch or (3 set one touch and 10 set two touch) repertory memory, each one can hold data up to
• A 32-digit LNB (last number) redial memory.
• Keytone function provides rapidly keying recognition.
• Handfree function provides on-hook dialing and speakerphone application.
• Pause and P-T time are fixed to 3.6 seconds.
• Tone duration and inter-tone pause time are fixed to 98 ms.
• Using 3.579545 MHz crystal or ceramic resonator.
• Package forms: PDIP, skinny.
Wide operating voltage from 2.0 V to 5.5 V.
Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
M/B ratio, Flash time, lock dialing functions.
16 digits.
LNB
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
KT
HOLD(music)
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
LOCK
AND DUAL-TONE MELODY GENERATOR
HF
SDO(LCD)
EM91415 SERIES
EM91415 SERIES
10.1.1997
PDP
1

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EM91415BP Summary of contents

Page 1

GENERAL DESCRIPTION The EM91415 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with 13 set memories. The EM91415 series provide necessary functions of telephone set for application in any environment, such as ...

Page 2

... ROW6 M6 ROW5/SDO : Option by COL5 @ When ROW5 is selected by R option (COL5), there are 13 sets one touch memory version in EM91415C/D provided. * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR EM91415BP 18 COL5 1 HDO 17 COL4/KT 2 ...

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FUNCTIONAL BLOCK DIAGRAM COL1 Keyboard COL2 interface COL3 COL4/KT (column) COL5 XIN Oscillator XOUT ROW1 Keyboard interface ROW6 (Row) PIN DESCRIPTIONS Symbol ROW1~ROW6 Keyboard scan pins of row group. In idle state (HKS is “High” and HFO is “Low”), these ...

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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 ...

Page 5

FUNCTION DESCRIPTIONS Dialing signal selection The EM91415 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. ...

Page 6

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. Repertory memory The EM91415 series incorporated several sets repertory memory ...

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Pulse to Tone (*/T) key operation The Pulse to Tone (*/T) key is designed to support toll dialing (long distance call) or PABX system operation. The “*/T” key can be stored in memory and it will occupy one digital position. ...

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Operating flow chart 4 On-hook Hand-free State On-hook Hold-line State <Note> Handfree HD = Hold Truth table Operating state (0) On-hook, idle state (1) Off-hook line (2) Off-hook, HF line (3) On-hook, HF ...

Page 9

SDO Keypad Encoded table: Digital key (b5,b4=0,0) keypad output b3,b2,b1,b0 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 Display Function key (b5,b4=1,0) keypad ...

Page 10

LOCK function The EM91415 series provide 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 ...

Page 11

In actual application of the RMUTE pin is recommended connection to microphone of the phone handset to prevent that the dialing signal (DTMF) is coupling by the Microphone of the phone handset. (such as pocket dialer ...

Page 12

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 duration Pause time Pulse to Tone waiting time Flash time Pulse rate Make/Break ...

Page 14

DTMF output frequency (fosc = 3.579545 MHz) Keyboard scan pin CCITT standard (Hz) ROW1 (f1) ROW2 (f2) ROW3 (f3) ROW4 (f4) COL1 (f5) COL2 (f6) COL3 (f7) * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER ...

Page 15

TIMING DIAGRAM HKS 2 KEY IN Tdb KT XMUTE HDO SDO PO DTMF OSC. Tdly HKS KEY IN KT XMUTE HDO SDO PO DTMF OSC. * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD ...

Page 16

LNB=2,3 HKS RD/P KEY IN Tdb KT XMUTE HDO SDO PO DTMF OSC. Tdly LNB=2,3 HKS RD/P KEY IN Tdb KT XMUTE HDO SDO PO DTMF OSC. Tdly * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE ...

Page 17

HKS 2 KEY IN KT XMUTE HDO SDO PO Tidp DTMF OSC. HKS 2 KEY IN KT XMUTE HDO SDO PO DTMF OSC. Figure 6. Pulse to Tone (P T) operating timing HKS KEY IN Tdb KT XMUTE HDO SDO ...

Page 18

HKS KEY IN KT SDO <Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time HKS HF KEY IN HFO HDO XMUTE SDO PO MELODY @ : It can be triggled by extension telephone set for hold function release HFI HF or HKS ...

Page 19

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 SWITCHABLE ...

Page 20

APPLICATION CIRCUIT EM91415 Application circuit * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR RMUTE DRING 12 13 HFO HFI 14 11 DTMF VSS 15 10 VDD XMUTE 16 ...

Page 21

EM32100 Application Circuit : SEG16 25 SEG15 26 SEG14 27 SEG13 28 SEG12 29 SEG11 30 SEG10 SEG9 33 SEG8 34 SEG7 35 SEG6 36 Package type : QFP 48 pins or chip form provided * This ...

Page 22

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 AND DUAL-TONE MELODY GENERATOR TEST1 SEG10 F32HZ SEG11 MS1 SEG12 ...

Page 23

PACKAGE INFORMATION Example : EM 914XX 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 ...

Page 24

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 ...

Page 25

SDIP Package DIM * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR SDIP MILIMETERS MIN. MAX. MIN ...

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