em91401 ELAN Microelectronics Corp, em91401 Datasheet - Page 5

• Manufacturer Part Number: em91401
• Description: Tone/pulse Switchable Dialer With Lcd Interface And Dual-tone Melody Generator
• Manufacturer: ELAN Microelectronics Corp

FUNCTION DESCRIPTIONS
* This specification are subject to be changed without notice.
Normal dialing
Directly keying digital key on keyboard which number can be dialing output and stored in LNB memory
automatically. Operating procedure described as follow :
• To select Pulse or Tone mode.
• Off-hook or turn on HF function.
• Keying d1, d2, .. , dn. The “d” expressed digital keypad that included 1~9, *, 0, #, P, and P T keys. The “n”
• The numbers d1, d2, .. , dn will be dialed out in Pulse or Tone mode as selection.
LNB redial memory
Storing:
Dialing signal selection
expressed unlimited.
In normal dialing mode, every digital key was entry which number will be stored in LNB memory
automatically. If entry digits are more than 32 digits, the redial function of LNB memory will be disabled.
Otherwise, these numbers stored in LNB memory can be redial output.
The EM91401 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 :
e. Lock number
a. Mode
c. Flash time
ROW1
ROW3
R-Vdd
COL2
R-Vss
R-Vss
R-Vss
R-Vss
R-Vss
NR
NR
NR
NR
NR
20 PPS
10 PPS
ROW4
COL3
R-Vss
R-Vss
R-Vss
R-Vss
Mode
Tone
NR
NR
NR
NR
Lock number
Tf (ms)
none
600
100
300
0.9
80
0
9
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
b. M/B ratio
d. Lock control method
ROW2
R-Vdd
R-Vss
COL1
R-Vss
NR
NR
MBR (%)
AND DUAL-TONE MELODY GENERATOR
Control method
40:60
33:66
password lock
none lock
key lock
EM91401 SERIES
10.1.1997
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