- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376430 > UPD72850A (NEC Corp.) IEEE1394 400Mbps PHY PDF資料下載
參數(shù)資料
| 型號： | UPD72850A |
| 廠商： | NEC Corp. |
| 英文描述： | IEEE1394 400Mbps PHY |
| 中文描述： | IEEE1394連接400Mbps的物理層 |
| 文件頁數(shù)： | 15/48頁 |
| 文件大?。?/td> | 290K |
| 代理商： | UPD72850A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
Data Sheet S14452EJ1V0DS00
15
μ
PD72850A
3. INTERNAL FUNCTION
3.1 Link Interface
3.1.1 Connection Method
Figure 3-1. PHY/Link Connection Method
Link
PHY
μ
PD72850A
D0-D7
CTL0,CTL1
DIRECT
LPS
LKON
SCLK
LREQ
Note
Note
Clamping to V
DD
provides direct connection to Link.
Clamping to GND connects through isolation barrier to Link.
The isolation barrier connection circuit is described in
3.1.7 Isolation Barrier.
3.1.2 LPS (Link Power Status)
LPS is a function to monitor the On/Off status of the Link power supply. After 1.2
μ
sec or more, LPS is Low, the
PHY/Link is reset and D and CTL are output Low (when the isolation barrier is Hi-Z). After 2.5
μ
sec or more, LPS is
Low, moreover, the PHY stops the supply of SCLK and SCLK outputs Low (when the isolation barrier is Hi-Z).
3.1.3 LREQ, CTL0,CTL1, and D0-D7 Pins
LREQ : Indicates that a request is received from Link.
CTL0,CTL1 : Bi-directional pin which controls the functions between the PHY/Link interface.
D0-D7 : Bi-directional pin which controls the data Transfer/Receive status signal, and the speed code
Transfer/Receive status signal.
3.1.4 SCLK
49.152 MHz clock supplied by PHY for the PHY/Link interface synchronization.
相關PDF資料 |
PDF描述 |
|---|---|
| UPD72850AGK-9EU | Circular Connector; No. of Contacts:56; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-4 RoHS Compliant: No |
| uPD750066CU | 4-BIT SINGLE-CHIP MICROCONTROLLERS |
| uPD750068GT | 4-BIT SINGLE-CHIP MICROCONTROLLERS |
| uPD750068GTA | 4-BIT SINGLE-CHIP MICROCONTROLLERS |
| uPD750066GTA | CONNECTOR ACCESSORY |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD74HC04C | 制造商:Panasonic Industrial Company 功能描述:IC |
| UPD750068GT-396 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD7507C189 | 制造商:Panasonic Industrial Company 功能描述:IC |
| UPD7508CU265 | 制造商:Panasonic Industrial Company 功能描述:IC |
| UPD75208 | 制造商:Panasonic Industrial Company 功能描述:IC |
發(fā)布緊急采購，3分鐘左右您將得到回復。