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Document #: 38-08037 Rev. *D Page 23 of 23
Document History Page
Document Title: CY7C656xx EZ-USB HX2LP™ Low-Power USB 2.0 Hub Controller Family
Document Number: 38-08037
REV. ECN NO. Issue Date
Orig. of
Change Description of Change
** 131505 02/12/2004 JTC New Data Sheet
*A 231329 See ECN KKU Changed load capacitors to 12 pF, updated part numbers, added functional
overviews, block descriptions, pin configurations, default descriptors, config-
urations options, supported USB requests, electrical characteristics and
package diagram
*B 250869 See ECN ARI Added typical values for Icc in Table 15.3, changed MPN CY7C65650 to
CY7C65640B, added CY7C65620 package
*C 330195 See ECN KKU Added Reset period in table 15.5.1
Added 0xD4 EEPROM Load
Added vendor command values
Added V
CC
ramp rate
Updated block diagram
*D 342997 See ECN KKU Updated features list.
Removed from section 5.2 “Once the hub is configured, the full hub function-
ality is available.”
Added reference to 0xD4 load to section 5.4
Added reference to polarity control in sections 5.6 and 5.7
Updated table 5-1 to match USB-IF spec changes.
Added LED modulation to section 5.8
Updated pin description table - SELFPWR# to SELFPWR and removed refer-
ences to limitations of bus powered. Added reference to polarity control
on PWR#, OVR# and LED control lines.
Updated Default descriptors
Updated EEPROM list to include 25LC080
Removed NoEOPatEOF1 bit.
Added LED polarity control