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GAMMA instabus
Release: February 2012
KNX EIB TP-UART 2-IC
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2.2 OPERATING CONDITIONS
2.2.1 General operating conditions
All specification parameters, unless otherwise stated, are valid within the General operating conditions.
Unless otherwise stated all voltages are referenced to the VB- pin.
Symbol
Parameter
VB+
positive line voltage
V
positive supply voltage for external supply
CC
(digital test modes with SHB = 0)
V
positive external supply voltage
IF
T
ambient temperature
amb
T
Junction temperature
jnc1
f
clock frequency (external quartz)
clk
1) DC voltage of bus is 20V to 30V, with signal and compensation pulse 11 V ... 45 V
2) set by SVCC
3) 4.915MHz external clock running
2.2.2 ABSOLUTE MAXIMUM RATINGS (NON OPERATING)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only. Functional operation of the device at these or any other
conditions beyond those indicated under "Operating Conditions" is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability. Unless otherwise stated
all voltages are referenced to the VB- pin.
positive line voltage
positive supply voltage (internal or
external supply)
positive external supply voltage
intermediate voltage (generated
by on-chip regulator)
voltage on pin TxO
voltage on pin RxIN
voltage on pin BYP
voltage on pin STxO
voltage on pin V20
Technical Manual
page 8
%! %
! '
%
' !% 4 ! ' !% /(1
Table 3 General operating conditions
VB+
V
CC
V
IF
V
VSP
V
TxO
V
RxIN
V
BYP
V
STxO
V
20
Subject to change without further notice.
Min
11
5.0 - 5%
3.3 - 5%
3.0
-25
-0.3
50
-0.3
7
-0.3
7
-0.3
50
-0.3
50
-0.3
50
-0.3
50
-0.3
50
-0.3
25
pages 42
© Siemens AG 2012
!> & & $ ! %
Max
Unit
Note
45
V
1)
5.0 + 5%
V
2)
3.3 + 5%
V
2)
5.5
V
85
ºC
125
ºC
4.9152
MHz
3)
V
1)
V
2)
V
2)
V
2)
V
1)
V
1), 4)
V
1)
V
1)
V
2)
Siemens AG
Infrastructure and Cities Sector,
Building Technologies
Control Products and Systems
P. O. Box 10 09 53,
D-93009 Regensburg
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