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HT9306 の電気的特性と機能
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HT9306のメーカーはHoltekです、この部品の機能は「(HT9305 / HT9306) 5-Memory Tone/Pulse Dialer」です。 このページではHT9306の詳細な仕様と技術情報(パラメータ、電気的特性、ピン配置など)を見つけることができます. |
製品の詳細 ( Datasheet PDF )
| 部品番号 | HT9306 |
| |
| 部品説明 | (HT9305 / HT9306) 5-Memory Tone/Pulse Dialer | ||
| メーカ | Holtek | ||
| ロゴ |  |
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このページの下部にプレビューとHT9306ダウンロード（pdfファイル）リンクがあります。 Total 30 pages
HT9305/6 Series
5-Memory Tone/Pulse Dialer
Features
Patent Number: 64097, 86474, 113235(R.O.C.), 5424740(U.S.A.)
• Universal specification
• Operating voltage: 2.0V~5.5V
• Low standby current
• Low memory retention current: 0.1µA (Typ.)
• Tone/pulse switchable
• Interface with LCD driver
• 32 digits for redialing
• 32 digits for the SA memory dialing
• One-key redialing
• Pause and P→T key for PBX
• 4×5 keyboard matrix
• 3.58MHz crystal or ceramic resonator
• Hand-free control
• Hold-line control
• Pause, P→T can be saved for redialing
• Lock function
• Keytone function
• Resistor options:
– M/B ratio
– Flash function and flash time(86ms~600ms)
– Pause and P→T duration
– Pulse number
– Keyboard operated IDD lock function
– Key board form
General Description
The HT9305/6 series tone/pulse dialers are
CMOS LSIs for telecommunication systems. They
are designed to meet various dialing specifica-
tions through resistor option matrix.
The HT9305/6 series tone/pulse dialers are
offered in four different versions. They are
HT9305x/HT9306x normal version; HT9305xL/HT9305xI
lock version, with keyboard-operated IDD lock
function; HT9305xT keytone version; and
HT9305xLT/HT9305xIT keytone/lock function
version. The four versions also supply the fol-
lowing functions: Hold-line, Hand-free and
LCD dialing number display interface, all of
which are suitable for feature phone applica-
tions.
1 21st Jan ’98
Free Datasheet http://www.Datasheet4U.com
1 Page  
Pin Assignment
HT9305x/xL, HT9306x version
HT9305xT/xLT versions
HT9305/6 Series
3 21st Jan ’98
Free Datasheet http://www.Datasheet4U.com
3Pages 
HT9305/6 Series
Pin Name
I/O
Internal
Connection
Description
MODE
This is a three-state input/output pin, used for dialing mode
selection, either Tone mode or Pulse mode, 10pps/20pps
MODE=VDD: Pulse mode, 10pps
I/O
CMOS
IN/OUT
MODE=OPEN: Pulse mode, 20pps
MODE=VSS: Tone mode
During pulse mode dialing, switching this pin to the tone mode
changes the subsequent digit entry to tone mode. When the
chips are in tone mode, switching to pulse mode will also be
recognized.
DTMF
This pin is active only when the chip transmits tone dialing
O
CMOS OUT
signals. Otherwise, it always outputs a low. The pin outputs
tone signals to drive the external transmitter amplifier circuit.
The load resistor should not be less than 5kΩ.
HDI
This pin is a schmitt trigger input structure. Active low.
I
CMOS IN
Pull-High
Applying a negative going pulse to this pin can toggle the HDO
output once.
An external RC network is recommended for input
debouncing. The pull-high resistance is 200kΩ typ.
HDO
The HDO is a CMOS output structure. Its output is toggle-
controlled by a negative transition on HDI. When HDO is
toggled high, PO keeps high to hold the line. The hold function
O
CMOS OUT
can be released by setting HFO high or by an on-off hook
operation or by another HDI input. The HDO pin can directly
drive the HT3810 series melody generator to produce a hold-
line background melody. Refer to the functional description for
the hold-line function.
Keytone output pin. It outputs a 1.2kHz tone carrier when any
KT O CMOS OUT key is pressed in the pulse mode or when the function keys are
pressed in the tone mode.
This pin is a schmitt trigger input structure. Active high.
Applying a positive going pulse to HFI can toggle the HFO
HFI
I
CMOS IN
Pull-Low
once and hence control the hand-free function. The pull-low
resistance of HFI is 200kΩ typ.
An external RC network is recommended for input
debouncing.
HFO
The HFO is a CMOS output structure. Its output is toggle-
controlled by a positive transition on HFI pin. When HFO is
high, the hand-free function is enabled and PO outputs a high
O CMOS OUT to connect the line.
The hand-free function can be released by setting HDO high or
by an on-off-hook operation or by another HFI input. Refer to the
functional description for the hand-free functional operation.
6 21st Jan ’98
Free Datasheet http://www.Datasheet4U.com
6 Page | |||
| ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ HT9306 datasheet.PDF ] | |
部品紹介
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HT9306 データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 また、HT9306のさまざまなアプリケーション回路とユースケースを使用して独自の設計に統合する方法を理解するのに役立ちます。 |
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