UPD720102 データシートの表示（PDF） - NEC => Renesas Technology

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UPD720102

USB 2.0 HOST CONTROLLER

NEC => Renesas Technology 

Parameter

Symbol

High-speed Source Electrical Characteristics

Rise time (10 to 90%)

tHSR

Fall time (90 to 10%)

tHSF

Driver waveform

See Figure 3–4.

High-speed data rate

tHSDRAT

Microframe interval

tHSFRAM

Consecutive microframe interval difference tHSRFI

Conditions

Data source jitter

Receiver jitter tolerance

Hub Event Timings

Time to detect a downstream facing port

connect event

Time to detect a disconnect event at a

hub’s downstream facing port

Duration of driving resume to a

downstream port

Time from detecting downstream resume

to rebroadcast

Inter-packet delay for packets traveling in

same direction for high-speed

Inter-packet delay for packets traveling in

opposite direction for high-speed

Inter-packet delay for root hub response for

high-speed

Time for which a Chirp J or Chirp K must

be continuously detected during reset

handshake

Time after end of device Chirp K by which

hub must start driving first Chirp K

Time for which each individual Chirp J or

Chirp K in the chirp sequence is driven

downstream during reset

Time before end of reset by which a hub

must end its downstream chirp sequence

See Figure 3–4.

See Figure 3–2.

tDCNN

tDDIS

tDRSMDN

Nominal

tURSM

tHSIPDSD

tHSIPDOD

tHSRSPIPD1

tFILT

tWTDCH

tDCHBIT

tDCHSE0

μPD720102

(2/2)

Min.

Max.

Unit

500

ps

500

ps

479.760

124.9375

480.240

125.0625

4 high-

speed

Mbps

μs

Bit

times

2.5

2000

μs

2.0

2.5

μs

20

ms

1.0

ms

88

Bit

times

8

Bit

times

192

Bit

times

2.5

μs

100

μs

40

60

μs

100

500

μs

24

Data Sheet S17998EJ4V0DS

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