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Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification Rev. 03 — 29 March 2000 45 of 48
9397 750 07002
© Philips Electronics N.V. 2000. All rights reserved.
19. Revision history
Table 36: Revision history
Rev Date CPCN Description
03 20000329 Product specification, third version; supersedes ISP1122-02 of 4 October 1999
(9397 750 06389). Modifications:
•
Table 1 “Ordering information”: table note on LQFP32 availability removed
•
Table 23 “Configuration bits”: values of bits C7 and C6 exchanged
•
Section 12.4 “Reference circuits”: resistor value for soft turn-on RC-circuit changed from
10 kΩ to 47 kΩ; see also Figure 10 to 13.
02 19991004 Product specification, second version; supersedes initial version ISP1122-01 of
3 June 1999 (9397 750 05154). Modifications:
•
Terminology made consistent: ganged power switching, global overcurrent detection
•
Added note on availability of LQFP32 to Table 1 “Ordering information”
•
Updated reference circuits in Section 12.4 “Reference circuits”: pull-up resistors changed
to 330 kΩ, soft turn-on RC network: capacitor moved and changed to 0.1 µF
•
Updated Figure 22 “Load impedance for D+ and D- pins.”: V
CC
-> V
reg(3.3)
.
01 19990603 Product specification; initial version.