Figure 4-1 Pin Assignment Outl…

PL2303HX

USB Converter ICs28-pin SSOP or 32-pin QFN

IC USB TO SERIAL BRIDGE 28-SSOP/32-QFN

PL-2303HX is a USB to Serial Bridge Controller supporting SSOP28 and QFN32 packages, with an operating voltage of 4.5V-6.5V, an internal 3.3V regulator, and RS232 signal compatibility, suitable for mobile and embedded devices.Checked against the datasheet

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Technical parameters

Datasheet-verified parameters

12 items

Parameter	Value and test conditions	Source
Package	28-pin SSOP or 32-pin QFN
RoHS	Lead Free or Pb-Free options available (PL-2303HXD SSOP LF, PL-2303HXD QFN LF)
Operating Voltage Range	Min: 4.5 V, Typ: 5 V, Max: 6.5 V (VDD_5)
Output Voltage of Regulator	Min: 3.0 V, Typ: 3.3 V, Max: 3.6 V (VO_33)
Operating Current	Typ: 20 mA, Max: 25 mA (No device connected)
Suspend Current	Typ: 260 μA, Max: 450 μA
Absolute Maximum Ratings - Power Supply Voltage	-0.3 to 5.5 V (VDD_5)
Absolute Maximum Ratings - Storage Temperature	-40 to 150 °C
RS232 VDD Range	1.8V ~ 3.3V (VDD_325)
Baud Rate Range	75 bps to 12M bps
USB Compliance	USB-IF Logo Compliant with TID 40000100
Driver Certification	Windows Vista Certified Logo Drivers (x86 and x64 drivers)

All parameters (7)ExpandCollapse

Power
Operating Current (Power Consumption)	25 mA (Max)
Operating Voltage Range	4.5 V (Min)
Output Voltage of Regulator	3.3 V (Typ)
Suspend Current	450 μA (Max)
Environment and package
Package	28-pin SSOP or 32-pin QFN
Storage Temperature	-40 to 150 °C
Other
Baud Rate	75 bps to 12M bps

Pinout and package

Pin	Name	Function
1	TXD	(Serial Port Transmitted Data)
2	DTR_N	(Serial Port Data Terminal Ready)
3	RTS_N	(Serial Port Request To Send)
4	VDD_325	(RS232 VDD, 1.8V~3.3V)
5	RXD	(Serial Port Received Data)
6	RI_N	(Serial Port Ring Indicator / Auxiliary GPIO)
7	GND	(Ground)
8	NC	(No Connection)
9	DSR_N	(Serial Port Data Set Ready / Auxiliary GPIO)
10	DCD_N	(Serial Port Data Carrier Detect / Auxiliary GPIO)
11	CTS_N	(Serial Port Clear to Send / Auxiliary GPIO)
12	SHTD_N	(RS232 Transceiver Shut Down Control)
13	GP3	(Auxiliary GPIO Pin 3, Default output high)
14	GP2	(Auxiliary GPIO Pin 2, Default output high)
15	DP	(USB Port D+ signal)
16	DM	(USB Port D- signal)
17	VO_33	(Regulator Power Output, 3.3V)
18	GND	(Ground)
19	RESET_N	(External System Reset, Active Low)
20	VDD_5	(USB Port VBUS, 5V Power)
21	NC	(No Connection)
22	GP0	(General Purpose I/O Pin 0)
23	GP1	(General Purpose I/O Pin 1)
24	NC	(No Connection)
25	GND	(Ground)
26	TEST	(Test mode control)
27	NC	(No Connection)
28		Reserved (Reserved pin, Must be floating)

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