- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382380 > PCD4440T (NXP SEMICONDUCTORS) Analog voice scrambler/descrambler PDF資料下載
參數(shù)資料
| 型號： | PCD4440T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Analog voice scrambler/descrambler |
| 中文描述： | TELECOM, CORDLESS, SCRAMBLER/DESCRAMBLER, PDSO8 |
| 封裝： | 7.50 MM, PLASTIC, SOT-176-1, SOP-8 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 105K |
| 代理商： | PCD4440T |
1996 Dec 20
9
Philips Semiconductors
Product specification
Analog voice scrambler/descrambler
PCD4440T
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.6)
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.7)
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.6 Bit transfer.
MBC621
data line
stable;
data valid
change
of data
allowed
SDA
SCL
Fig.7 Start and stop conditions.
MBC622
SDA
SCL
P
STOP condition
SDA
SCL
S
START condition
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCD5003A | Enhanced Pager Decoder for POCSAG |
| PCD5003AH | Enhanced Pager Decoder for POCSAG |
| PCD5003 | Advanced POCSAG Paging Decoder |
| PCD5003H | Advanced POCSAG Paging Decoder |
| PCD5008 | FLEX Pager Decoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCD45 | 制造商:IVO 制造商全稱:Baumer IVO GmbH & Co. KG 功能描述:Process displays electronic |
| PCD45.002PX01 | 制造商:IVO 制造商全稱:Baumer IVO GmbH & Co. KG 功能描述:Process displays electronic |
| PCD45.003PX01 | 制造商:IVO 制造商全稱:Baumer IVO GmbH & Co. KG 功能描述:Process displays electronic |
| PCD45.012PX01 | 制造商:IVO 制造商全稱:Baumer IVO GmbH & Co. KG 功能描述:Process displays electronic |
| PCD45.013PX01 | 制造商:IVO 制造商全稱:Baumer IVO GmbH & Co. KG 功能描述:Process displays electronic |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。