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UPD72850A

NEC
Part Number UPD72850A
Manufacturer NEC
Description IEEE1394 400Mbps PHY
Published Apr 16, 2005
Detailed Description DATA SHEET MOS INTEGRATED CIRCUIT µPD72850A IEEE1394 400Mbps PHY The µPD72850A is the 3-port physical layer LSI whic...
Datasheet PDF File UPD72850A PDF File

UPD72850A
UPD72850A

Overview
DATA SHEET MOS INTEGRATED CIRCUIT µPD72850A IEEE1394 400Mbps PHY The µPD72850A is the 3-port physical layer LSI which complies with the P1394a draft 2.
0 specifications.
The µPD72850A works up to 400 Mbps.
It is an upgrade of NEC's µPD72850.
FEATURES • The Three-port Physical Layer LSI complies to IEEE P1394a draft 2.
0 • Connection debounce • Arbitration enhancements • Arbitrated short bus reset • Ack-accelerated arbitration • Fly-by concatenation • Multiple-speed packet concatenation • Arbitration enhancements and cycle start (controlled by the Link layer) • Performance optimization via PHY pinging • Priority arbitration (controlled by the Link layer) • Data rate: 393.
216 / 196.
608 / 98.
304 Mbps • Compliant with Suspend/Resume function as defined in P1394a draft 2.
1 • 3.
3 V single power supply • Electrical isolated Link interface • 24.
576 MHz crystal clock generation, 393.
216 MHz PLL multiplying frequency • System power management by signaling of node power class information • Cab...


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