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參數(shù)資料
| 型號(hào)： | HM91710B |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | TONE/PULSE SWITCHABLE DIALER |
| 中文描述： | 音頻/脈沖可切換撥號(hào)器 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大小： | 131K |
| 代理商： | HM91710B |
1
HM91710A/B
TONE/PULES SWITCHABLE DIALER
TONE/PULSE SWITCHABLE DIALER
* This specification are subject to be changed without notice.
4.10.2002
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
HM91710B
EM91710B
C2
C3
C4
C1
OSCI
OSCO
XMUTE
V
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
R3
R2
R1
R4
TONE
PO
HKS
V
DD
SS
C2
C3
C4
C1
OSCI
OSCO
XMUTE
HFI
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
SS
V
DD
R3
R2
R1
R4
TONE
PO
HKS
V
HFO
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