HM91710A 반도체 회로 부품 판매점
TONE/PULSE SWITCHABLE DIALER
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 ELAN Microelectronics Corp |
HMH9M197117010AA//BB
TONE/TPOUNLES/PEUSLWESISTWCIHTCAHBALBELEDDIAIALLEERR
GENERAL DESCRIPTION
The HM91710A/B are Tone/Pulse switchable dialer which are fabricated in CMOS technology with wide
operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK
state.
FEATURES
• Tone/pulse switchable dialer.
• One 32-digit last number redial memory.
• Pulse to tone (P→T) is provided for PBX operation.
• Flash key is available.
• Minimum tone duration is 98ms or 83ms.
• Minimum intertone pause is 98ms or 83ms.
• Uses 3.579545 MHz crystal or ceramic resonator.
• Many options can be selected.
Mode (10 PPS ; 20 PPS ; Tone)
M/B ratio (40 : 60 ; 33 : 66)
Pause time (3.6s)
• Flash function (RESET)
P→T pause time (3.6s)
Flash time (600ms; 300ms; 100ms; or 80ms).
• Mixed dialing.
• Handfree function is provided for speaker phone application.
• Power on reset circuit is provided.
• Package in DIP18 or DIP16.
PIN ASSIGNMENTS
HM91710A
EM91710A
C2
C3
C4
C1
OSCI
OSCO
XMUTE
V SS
1
2
3
4
5
6
7
8
16 R3
15 R2
14 R1
13 R4
12 TONE
11 PO
10 HKS
9 VDD
HM91710B
EM91710B
C2
C3
C4
C1
OSCI
OSCO
XMUTE
VSS
HFI
1
2
3
4
5
6
7
8
9
18 R3
17 R2
16 R1
15 R4
14 TONE
13 PO
12 HKS
11 VDD
10 HFO
* This specification are subject to be changed without notice.
4.10.2002 1
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
KEYBOARD ASSIGNMENT
C1 C2 C3
R1 1 2 3
R2 4 5 6
R3 7 8 9
R4 * 0 #
C4
P→T
F
P
RD
FUNCTIONAL BLOCK DIAGRAM
1). P→T : In pulse mode, execute P→T function.
2). F : Flash key.
3). RD : Redial key.
4). P : Pause key.
COL1
COL2
COL3
COL4
OSCI
OSCO
ROW1
ROW2
ROW3
ROW4
OSC.
DIVIDER
OUTPUT INTERFACE CKT.
PULSE
GENERATOR
PO
LNB MEMORY
INPUT INTERFACE CKT.
DECODER &
DATA LATCH
ROW/COLUMN
PROGRAMMING
COUNTER
D/A CONVERTER
TONE
DIALING SIGNAL OPTION :
a]:Flash time:
Row3 Row4 flash time(ms)
NR NR
NR R
600
300
R NR
100
RR
80
b).
Row1 Row2 MODE PULSE RATE
R NR TONE
R R TONE
NR NR PULSE
20PPS
NR R PULSE 20PPS
UR NR PULSE
10PPS
UR R PULSE
10PPS
M/B
40:60
33:66
40:60
33:66
c]:Tone function:
Col1
NR
R
Tone Duration
98 ms
83 ms
inter-Tone
Pause
98 ms
83 ms
d]:Key type select
Col2 *or*/T
select
NR * Note: NR:no resistance.
R : A resistance connect to Vss (820KΩ typically)
R */T
UR: A resistance connect to V DDDD
* This specification are subject to be changed without notice.
1.7.2002
2
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PDF 파일 내의 페이지 : 총 19 페이지
제조업체: ELAN Microelectronics Corp
( elan )
HM91710A data
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
HM91710A
TONE/PULSE SWITCHABLE DIALER - ELAN Microelectronics Corp
HM91710B
TONE/PULSE SWITCHABLE DIALER - ELAN Microelectronics Corp