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參數(shù)資料
| 型號(hào)： | SC91710A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | TONE / PULSE SWITCHABLE DIALER WITH HANDFREE FUNCTION |
| 中文描述： | 音頻/脈沖開關(guān)的撥號(hào)器帶免提功能 |
| 文件頁(yè)數(shù)： | 5/18頁(yè) |
| 文件大?。?/td> | 297K |
| 代理商： | SC91710A |
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Silan
Semiconductors
SC91710A/B
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
2001-11-13
5
PIN DESCRIPTION
Pin No.
SC91710A SC91710B Pin Name
Description
4
4
C1
1
1
C2
2
2
C3
3
3
C4
14
16
R1
15
17
R2
16
18
R3
13
15
R4
*Provides keyboard scanning.
*
HKS
pin is LOW, the column group stays in “HIGH” state and row group
stays in “LOW” state.
*The keypad is compatible with the standard dual contact matrix keyboard
(as figure1b), the inexpensive single contact keyboard (as figure 1a), and
electronic input (as figure 1c).
*When
HKS
is “LOW”, a valid key entry is defined by related Row &
Column connection or by electronic input (as shown in figure 1c).
*Activation of two or more keys will result in no response, except for single
key.
*To avoid keyboard-bouncing error, this chip provides built-in debounce
circuit. (The debounce time = 20ms)
V
DD
Column
Row
Column
Row
Column
V
SS
V
DD
V
SS
Row
Figure1a: Single contact form
keyboard configuration
Figure1b: Dual contact form
keyboard configuration
Figure1c: Electronic signal input keyboard configuration
5
5
OSCI
6
6
OSCO
*Oscillator input & output pins.
*The 3.579545MHz oscillator is formed by a built-in inverter inside of this
chip and by connecting a 3.579545MHz crystal or a ceramic resonator
across the OSCI and OSCO pins. (built-in feedback resistor and capacitor)
*When
HKS
is “LOW”, a valid key-in may turn on this oscillator and
generates a 3.579545 MHz clock.
(to be continued)
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| SC91710B | TONE / PULSE SWITCHABLE DIALER WITH HANDFREE FUNCTION |
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| SCA103T-D04 | SCA103T |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC91710AS | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION |
| SC91710B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TONE / PULSE SWITCHABLE DIALER WITH HANDFREE FUNCTION |
| SC9200 | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:DTMF GENERATOR WITH MICROPROCESSOR |
| SC9200A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DTMF GENERATORS |
| SC9200AS | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:DTMF GENERATOR WITH MICROPROCESSOR |
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