USER MANUAL V1.2
© 2014 EnOcean | www.enocean.com
TCM 310 / TCM 310C / TCM 310U User Manual | v1.2 | July 2014 | Page 7/28
TCM 310 / TCM 310C / TCM 310U
3
FUNCTIONAL DESCRIPTION
3.1
Pin out
The figure above shows the pin out of the TCM 310x hardware.
3.2
Pin description and operational characteristics
HW Symbol
Pin #
Function
Characteristics
GND
1, 5, 7, 17, 18,
24, 26, 28, 31
Ground connection Must be connected to GND; see 4.4
VDD
2
Supply voltage
2.6 V … 3.5 V
RVDD
8
RF supply voltage
regulator output
Leave open
DVDD
25
Digital supply volt-
age
regulator output
1.8 V
Output current: max. 5 mA
IOVDD
23
GPIO supply volt-
age
Must be connected to desired inter-
face supply voltage (see 3.4) See
also 3.2.1.
RESET
27
Reset input
External 10 kΩ pull-down required.
SER_RX
15
UART input
See 3.6
SER_TX
16
UART output
See 3.6
RF_WHIP
4
RF output
Output for whip antenna
RF_50
6
RF output
50 Ohm output for external antenna
n.c.
3, 9-14, 19-22,
29,30, 32-34
Not connected
Do not connect!
EO3000I
Antenna
balun
XTAL
16MHz
TCM310/310C
TOP VIEW
DVDD
RVDD
n
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.
IOVDD
n.c.
n
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.
n
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.
n
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.
R
E
S
E
T
n
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.
n
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.
n
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.
n
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.
n
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.
n
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n
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S
E
R
_
R
X
S
E
R
_
T
X
GND
n.c.
n.c.
n.c.
GND
G
N
D
GND
RF_50
RF_WHIP
n.c.
VDD
GND
G
N
D
G
N
D
G
N
D
GND
1
9
18
26
