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參數(shù)資料
| 型號(hào)： | PCD3312 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | DTMF/modem/musical-tone generators |
| 中文描述： | 雙音多頻/調(diào)制解調(diào)器/音樂，音調(diào)發(fā)生器 |
| 文件頁數(shù)： | 11/28頁 |
| 文件大?。?/td> | 176K |
| 代理商： | PCD3312 |
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1996 Nov 21
11
Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
PCD3311C; PCD3312C
8
I
2
C-BUS INTERFACE
The I
2
C-bus is for two-way communication between different ICs or modules. It uses only two lines, a serial data line
(SDA) and a serial clock line (SCL), both of which are bi-directional. Both lines must be connected to a positive supply
via a pull-up resistor when connected to the output stages of a device. Data transfer may be initiated only when the bus
is not busy.
8.1
Bit transfer
(see Fig.7)
One data bit is transferred during each clock pulse. The data on the SDA line must remain stable during the HIGH period
of the clock pulse as changes in the data line at this time will be interpreted as control signals.
8.2
Start and stop conditions
(see Fig.8)
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW transition of the data line, while the
clock is HIGH is defined as the start condition (S). A LOW-to-HIGH transition of the data line while the clock is HIGH is
defined as the stop condition (P).
Fig.7 Bit transfer.
MBC621
data line
stable;
data valid
change
of data
allowed
SDA
SCL
Fig.8 Start and stop conditions.
MBC622
SDA
SCL
P
STOP condition
SDA
SCL
S
START condition
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCD3312C | DTMF/modem/musical-tone generators |
| PCD3312CP | DTMF/modem/musical-tone generators |
| PCD3312CT | DTMF/modem/musical-tone generators |
| PCD3316 | Caller-ID on Call Waiting CIDCW receiver |
| PCD3316T | Caller-ID on Call Waiting CIDCW receiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCD3312C | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DTMF/modem/musical-tone generators |
| PCD3312CP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DTMF/modem/musical-tone generators |
| PCD3312CPN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone Telephone Dialer |
| PCD3312CT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DTMF/modem/musical-tone generators |
| PCD3312CTD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone Telephone Dialer |
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