User's Manual

USER MANUAL
© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 12/54
TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.2 Pin description and operational characteristics
HW Symbol
TCM 300x
pin #
TCM 320x
pin #
Function
Characteristics
GND
1, 5, 7,
17, 24,
26, 28,
31
1, 16
Ground connection
Must be connected to GND; see 4.5
VDD
2
15
Supply voltage
TCM 300: 2.6 V – 4.5 V
TCM 320: 2.6 V – 3.3 V
Max. ripple: see 3.4
RVDD
8
RF supply voltage
regulator output
1.8 V
Output current:
 max. 100 µA with built-in firmware (RX
on)
 max. 10 mA while not in RX/TX mode
DVDD
25
Digital supply volt-
age
regulator output
1.8 V
Output current: max. 5 mA
IOVDD
23
GPIO supply volt-
age
TCM 320: internally connected to VDD
TCM 300: Must be connected to de-
sired
interface supply voltage (see 3.4)
See also 3.2.1.
RESET
27
14
Reset input
Programming I/F
Active high reset. External 10 kΩ pull-
down required.
PROG_EN
18
13
Programming I/F
HIGH: programming mode active
LOW: operating mode
Digital input, external 10 kΩ pull-down
required.
ADIO0
9
2
MODE_SEL
Analog input: At start-up input voltage
is measured and mode is selected. See
chapter 3.6.
ADIO1
10
3
MODE 0: not used
In mode 0 the repeater level is 1 and
cannot be modified.
MODE 1-4:
REP_LEVEL
Mode 1-4: At start-up the repeater
level
is selected:
Repeater level 1: LOW
Repeater level 2: HIGH
Digital input, internal pull-up active
ADIO2
11
4
REPEATER
At start-up the repeater can be
switched on:
Repeater on: LOW
Repeater off: HIGH
Digital input, internal pull-up active
ADIO3
12
5
MODE 0: Sensitiv-
ity
Low sensitivity: LOW
High sensitivity: HIGH
Digital input, internal pull-up active