isp1521 NXP Semiconductors, isp1521 Datasheet - Page 36

• Manufacturer Part Number: isp1521
• Description: Hi-speed Universal Serial Bus Hub Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 39.
V
[1]
[2]
[3]
ISP1521_4
Product data sheet
Symbol
Resistance
Z
Termination
V
CC
INP
TERM
= 3.0 V to 3.6 V; T
For minimum value, the HS termination resistor is disabled and the pull-up resistor is connected. Only during reset, when both the hub
and the device are capable of high-speed operation.
Characterized only, not tested. Limits guaranteed by design.
In suspend mode, the minimum voltage is 2.7 V.
Parameter
input impedance
termination voltage
Static characteristics: USB interface block (DP0 to DP7 and DM0 to DM7)
amb
= 40 C to +70 C; unless otherwise specified.
Rev. 04 — 30 March 2006
Conditions
for pull-up resistor on pin
RPU
[3]
Min
10
3.0
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
…continued
Typ
-
-
ISP1521
Max
-
3.6
Unit
M
V
36 of 55