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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data Rev. 03 — 24 November 2004 3 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
4. Abbreviations
ACPI — Advanced Configuration and Power Interface
EMI — ElectroMagnetic Interference
ESD — ElectroStatic Discharge
NAK — Not AcKnowledge
PID — Packet IDentifier
PLL — phase-Locked Loop
SIE — Serial Interface Engine
TT — Transaction Translator
USB — Universal Serial Bus.
5. Ordering information
Table 1: Ordering information
Type number Package
Name Description Version
ISP1521BE LQFP80 plastic low profile quad flat package; 80 leads; body
12 × 12 × 1.4 mm
SOT315-1