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參數資料
| 型號： | HT12M |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Decoder Doorbell |
| 中文描述： | 解碼器門鈴 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 92K |
| 代理商： | HT12M |
HT12M
2
12
Decoder Doorbell
Block Diagram
Pin Assignment
Rev. 1.00
1
March 25, 2002
Features
Operating voltage: 2.4V~5.0V
Built-in AMP
2channel dual tone generator
One Pin oscillator
Current type D/A Output
HT12E encoder pair with
Tone optional: Ding-Dong/Westminster tunes
16-pin DIP package
General Description
The main application area for the HT12M device is for
remote control doorbells working together with HT12E.
Containing all the functions of the Holtek HT12D de-
coder and with an added amplifier and melody genera-
tor, the device eliminates the need for customers to
incorporate an external op-amp and melody generator
IC within their product applications, in the process sig-
nificantly reducing overall product costs.
In addition to being fully compatible with the HT12D cir-
cuitry, the device includes the following features; inter-
nal Inverting AMP with can also operate as standard
independent inverter, internal 2 channel tone generator
and current type Audio output.
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