HM91710A EMC [ELAN Microelectronics Corp], HM91710A Datasheet - Page 2

• Manufacturer Part Number: HM91710A
• Description: TONE/PULSE SWITCHABLE DIALER
• Manufacturer: EMC [ELAN Microelectronics Corp]

KEYBOARD ASSIGNMENT
KEYBOARD ASSIGNMENT
KEYBOARD ASSIGNMENT
FUNCTIONAL BLOCK DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
DIALING SIGNAL OPTION :
DIALING SIGNAL OPTION :
DIALING SIGNAL OPTION :
KEYBOARD ASSIGNMENT
KEYBOARD ASSIGNMENT
DIALING SIGNAL OPTION :
DIALING SIGNAL OPTION :
* This specification are subject to be changed without notice.
a]:Flash time:
c]:Tone function:
Row3
R1
R2
R3
R4
NR
NR
R
R
Col1
NR
R
Row4
NR
NR
R
R
Tone Duration
C1
1
4
7
*
COL3
OSCI
OSCO
ROW1
ROW2
ROW3
ROW4
COL1
COL2
COL4
flash time(ms)
98 ms
83 ms
600
300
100
80
C2
2
5
8
0
inter-Tone
OSC.
Pause
C3
3
6
9
#
98 ms
83 ms
DIVIDER
P T
RD
C4
F
P
b).
d]:Key type select
Row1 Row2
NR
NR
UR
UR
Col2
R
R
NR
R
INPUT INTERFACE CKT.
NR
NR
NR
*or*/T
select
OUTPUT INTERFACE CKT.
1). P T : In pulse mode, execute P T function.
2). F
3). RD
4). P
R
R
R
*/T
*
PULSE
PULSE
PULSE
PULSE
MODE
TONE
TONE
LNB MEMORY
Note: NR:no resistance.
: Flash key.
: Redial key.
: Pause key.
UR: A resistance connect to V
R : A resistance connect to Vss
PULSE RATE
20PPS
20PPS
10PPS
10PPS
TONE/PULSE SWITCHABLE DIALER
TONE/PULSE SWITCHABLE DIALER
TONE/PULSE SWITCHABLE DIALER
TONE/PULSE SWITCHABLE DIALER
TONE/PULSE SWITCHABLE DIALER
D/A CONVERTER
PROGRAMMING
DATA LATCH
ROW/COLUMN
GENERATOR
DECODER &
COUNTER
40:60
33:66
40:60
33:66
PULSE
M/B
DD
(820K typically)
DD
TONE
PO
HM
HM91710A/B
HM
HM
HM
1.7.2002
91710A/B
91710A/B
91710A/B
91710A/B
2