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參數(shù)資料
| 型號(hào)： | HT814D0(24DIP) |
| 英文描述： | Speech Synthesizer |
| 中文描述： | 語音合成器 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 207K |
| 代理商： | HT814D0(24DIP) |
HT814D0
9
March 15, 2000
As a repeat key, the sections included can be
played sequentially and repeatedly till other
key input is triggered. KEY12 has no other
choice but functions as a stop key when
KEY1~KEY11 are set as repeat keys.
Key features
Key priority
When two or more keys are triggered simulta-
neously, the output voice is determined by the
key priority as shown below:
KEY1>KEY2>......KEY11>KEY12
Key debounce time
There are four kinds of key-in debounce time to
be selected by mask option, namely, 700 s,
22ms, 45ms and 180ms. The key debounce time
varies with the value of the system frequency.
Pull-high resistance
Four kinds of key input pin pull-high resis-
tance can be selected by mask option,
namely, 20k , 50k , 100k
The resistance may vary with VDD, tem-
peratures and the chip itself due to process
variations.
and 200k .
Trigger mode
All of the 12 keys level hold function can be
optioned as one-shot trigger mode, or level
hold mode, or level-trigger mode.
One shot
When one of the 12 keys (KEY1~KEY12) is
pressed and held down or pressed momen-
tarily, the group corresponding to that key
will play once.
Level trigger
When one of the 12 keys is pressed and held
down, the corresponding group will keep
playing. Once the pressed key is released,
the group will not stop till the included sec-
tions are all completed.
Level hold
When one of the 12 keys is pressed and held
down, the group corresponding to that held
key will play until the pressed key is re-
leased, then the group will immediately
stop regardless of the rest.
FLAG
When voices are playing, both FLAG1 and
FLAG2 pins are activated to output one of the
following signals through code option.
FLAG1 can be optioned as one of the following
signal outputs:
None, 3HzB flash, Busy, 6HzB flash, Voice indica-
tor, or End-pulse output
FLAG2, on the other hand, can be set as one of
the following signal outputs:
None, 3Hz flash, 6Hz flash, or Busy output
3Hz/3HzB flash
When voices are playing, the FLAG1 as well
as FLAG2 pin outputs a 3Hz signal to drive
an LED. The signal is active low, 25% duty.
Once the voice output is terminated, the
FLAG1 and FLAG2 pins become floating out-
puts. When the FLAG1 and the FLAG2 pins
are optioned as 3HzB and 3Hz outputs, they
will be alternately output at a 3Hz rate.
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT814D0(24SOP) | Speech Synthesizer |
| HT814D0 | PATCH PANEL HINGE KIT 3U SCA-H |
| HT815D0(16DIP) | Speech Synthesizer |
| HT815D0(20DIP) | Speech Synthesizer |
| HT815D0(20SOP) | Speech Synthesizer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT815D0 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:11.2-Second LOG-PCM Speech |
| HT815D0(16DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT815D0(20DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT815D0(20SOP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
| HT815D0(24DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speech Synthesizer |
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