CP2103-GM Silicon Laboratories Inc, CP2103-GM Datasheet - Page 13
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CP2103-GM
Manufacturer Part Number
CP2103-GM
Description
IC CTRLR BRIDGE USB-UART 28QFN
Manufacturer
Silicon Laboratories Inc
Specifications of CP2103-GM
Package / Case
28-QFN
Applications
USB
Interface
USB
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Mounting Style
SMD/SMT
Operating Supply Voltage
3.6 V
Supply Current (max)
100 mA
Package
28QFN
Operating Temperature
-40 to 85 °C
Usb Version
2.0
Data Rate
1Mbps
Supply Voltage Range
1.8V To 3.6V, 3V To 3.6V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
QFN
No. Of Pins
28
Supply Voltage Max
3.6V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1163 - KIT EVAL FOR CP2103 USB TO UART
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1164
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CP2103-GM
Manufacturer:
SiliconL
Quantity:
7 101
Company:
Part Number:
CP2103-GM
Manufacturer:
Silicon
Quantity:
38 767
Company:
Part Number:
CP2103-GMR
Manufacturer:
SiliconL
Quantity:
3 000
Part Number:
CP2103-GMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
Company:
Part Number:
CP2103-GMR.
Manufacturer:
SILICON
Quantity:
15 000
4. USB Function Controller and Transceiver
The universal serial bus function controller in the CP2103 is a USB 2.0 compliant full-speed device with integrated
transceiver and on-chip matching and pull-up resistors. The USB function controller manages all data transfers
between the USB and the UART as well as command requests generated by the USB host controller and
commands for controlling the function of the UART.
The USB Suspend and Resume signals are supported for power management of both the CP2103 device as well
as external circuitry. The CP2103 will enter Suspend mode when Suspend signaling is detected on the bus. Upon
entering Suspend mode, the CP2103 asserts the SUSPEND and SUSPEND signals. SUSPEND and SUSPEND
are also asserted after a CP2103 reset until device configuration during USB Enumeration is complete.
The CP2103 exits the Suspend mode when any of the following events occurs: (1) Resume signaling is detected or
generated, (2) a USB Reset signal is detected, or (3) a device reset occurs. Upon exit from Suspend mode, the
SUSPEND and SUSPEND signals are de-asserted.
Both SUSPEND and SUSPEND temporarily float high during a CP2103 reset. If this behavior is undesirable, a
strong pulldown (10 k) can be used to ensure SUSPEND remains low during reset. See Figure 6 for other
recommended options.
CONNECTOR
USB
Option 1: A 4.7 k pull-up resistor can be added to increase noise immunity.
Option 2: A 4.7 µF capacitor can be added if powering other devices from the on-chip regulator.
Option 3: Avalanche transient voltage suppression diodes should be added for ESD protection .
Option 3:
Option 4: 10 k resistor to ground to hold SUSPEND low on initial power on or device reset.
VBUS
GND
D+
D-
1
3
4
Use Littlefuse p/n SP0503BAHT or equivalent.
4.7 F
Option 2
C4
I/O Voltage
D1
0.1 F
D2
1 F
1 F
C1
C2
D3
Option 3
5
7
6
2
8
4
3
Figure 6. Typical Connection Diagram
REGIN
VBUS
GND
VDD
V
D+
D-
IO
CP2103
Rev. 1.0
SUSPEND
SUSPEND
GPIO.0
GPIO.1
GPIO.2
GPIO.3
RST
DCD
DSR
RXD
DTR
TXD
RTS
CTS
RI
9
12
11
1
28
27
26
25
24
23
22
19
18
17
16
4.7 k
10 k
R1
R2
VDD
Option 1
Option 4
CP2103
External RS-232
(to external circuitry
for USB suspend
states)
UART circuitry
transceiver or
Application
External
Circuitry
13