co120sq Connect One Ltd., co120sq Datasheet - Page 15

• Manufacturer Part Number: co120sq
• Description: The Ichip? Co120sq Internet Controller? Is A High-performance, Firmware-based Intelligent Peripheral Device That Provides Internet Connectivity Solutions For A Wide Range Of Embedded Devices.
• Manufacturer: Connect One Ltd.

Signal
-SERNET_
FRC
Z[0,1]
Z[2]
Z[3]
GND
GND_C1
GND_C2
GND_C3
GND_R
VDD
VDD_R
NC
SLEEP_DIS
iChip CO120SQ Data Sheet
Type
TWCK
I(PU)
TWD
IO
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P
P
I
4, 8, 10, 11, 12,
Pin No.
14, 15, 16, 18,
21, 25, 28, 30,
39, 44, 50, 57,
9, 17, 29, 38,
13, 22
53, 52
59
49
54
55
26
27
58
51
23
20
7
Description
Force SerialNET mode: When this pin is LOW, iChip
is forced into SerialNET mode. When this pin is HIGH,
SerialNET mode is managed with AT+i commands.
Leave Not Connected when not in use. Not
implemented.
General Purpose I/O (GPIO): Reserved for future use.
These pins should be left NC (Not Connected).
Two-wire clock.
Two-wire data.
Ground: iChip Ground signal.
Must connect this pin with 1uF capacitor to GND (pin
25). For internal 1.8V power supply.
Must connect this pin with 33pF and 10uF capacitors
to GND (pin 28). For internal 1.8V power supply.
Must connect this pin with 33pF and 10uF capacitors
to GND (pin 57). For internal 1.8V power supply.
Must connect this pin with 10K resistor to GND.
Power Supply: These pins supply power (+3.3V) to
iChip’s I/O pins.
Must connect this pin with 10K resistor to VDD.
NC (Not Connected) pins.
Sleep Disable: When this pin is HIGH, Sleep Mode is
Disabled. When this pin is LOW, iChip enters Sleep
Mode according to its settings and configuration. Not
implemented.
Pin Descriptions
6-3