ISP1520BDGA ST-Ericsson Inc, ISP1520BDGA Datasheet - Page 40

• Manufacturer Part Number: ISP1520BDGA
• Description: IC USB HUB CONTROLLER HS 64-LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1520BDGA

• Applications: USB Hub/Microcontroller
• Interface: I²C
• Package / Case: 64-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Other names: 568-1169; ISP1520BD,551; ISP1520BD-S

Philips Semiconductors
ISP1520_4
Product data sheet
Fig 15. Hub EOP delay and EOP skew
+3.3 V
+3.3 V
downstream
differential
differential
data lines
data lines
upstream
0 V
0 V
Full-speed timing symbols have a subscript prefix ‘F’, low-speed timing a prefix ‘L’.
EOP delay:
EOP delay relative to t
EOP skew:
t
t
t
EOP
EOPD
HESK
= max (t
= t
= t
EOP+
EOP
EOP−
− t
(A) downstream EOP delay
− t
HDD
EOP−
, t
HDD
EOP+
t
:
EOP−
)
t
EOP+
crossover
extended
point
Rev. 04 — 28 April 2006
crossover
extended
point
downstream
end of cable
upstream
port
(B) upstream EOP delay
t
EOP−
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
t
EOP+
crossover
extended
ISP1520
point
crossover
extended
mgr778
point
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