SMSC USB4640i Manuel d'utilisateur télécharger pdf (Page 61)

High Speed Inter-Chip USB 2.0 Hub and Flash Media Controller

Datasheet

SMSC USB4640/USB4640i 61 Revision 1.0 (06-01-09)

DATASHEET

10.4 Capacitance

T

A

= 25°C; fc = 1 MHz; VDD33= 3.3 V

Table 10.1 Pin Capacitance

PARAMETER SYMBOL

LIMITS

UNIT TEST CONDITIONMIN TYP MAX

Clock Input Capacitance C

XTAL

2 pF All pins (except USB pins

and pins under test) are tied

to AC ground.

Input Capacitance C

IN

10 pF

Output Capacitance C

OUT

20 pF

1 2 ... 56 57 58 59 60 61 62 63 64 65

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