Datasheet

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

Datasheet

SMSC USB4640/USB4640i 19 Revision 1.3 (03-13-13)

DATASHEET

I/O8PD Input/output buffer with an 8 mA sink and an 8 mA source with a weak internal pull-down resistor

I/O8PU Input/output buffer with an 8 mA sink and an 8 mA source with a weak internal pull-up resistor

O12 Output buffer with a 12 mA sink and a 12 mA source

I/O12 Input/output buffer with 12 mA sink and 12 mA source

I/O12PD Input/output buffer with 12 mA sink and 12 mA source with a weak internal pull-down resistor

I/O200 Input/output buffer 12 mA with FET disabled, 100/200 mA source only when the FET is enabled

ICLKx XTAL clock input

OCLKx XTAL clock output

I/O-U Analog input/output as defined in the USB 2.0 Specification

I-R RBIAS

Table 3.3 USB4640/USB4640i Buffer Type Descriptions (continued)

BUFFER DESCRIPTION