Datasheet

Revised Date:
April 16, 2007
ds_pl2303HXD_v1.1.doc
2.0 Functional Block Diagram
96MHz Clock Generator
USB 1.1
Transceiver
5 to 3.3V
Regulator
Power
Management
USB Digital Lock
Loop
USB to Serial Interface Engine
Control Endpoint Interrupt Endpoint
Bulk-in
Endpoint
Bulk-Out
Endpoint
256/384Byte
Inbound Data
Buffer
256/128Byte
Outbound Data
Buffer
RS232 / RS-422 / RS-485 Like
Serial Interface Engine
256-Bytes
OTP ROM
Hardware ROM
Default Descriptor
PL-2303HXD
RS-232/RS-422/RS-485 Like Interface
USB Host
Figure 2-1 Block Diagram of PL-2303HX (Rev D)
PL-2303HX (Rev D) Product Datasheet - 9 - Document Version 1.1