E981.03 Datasheet, PDF (13/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

VIO
SET_VCC ^RSET
C
CCVCC CVIO
3 **3
VCC
+-
TP1-256
(23) EXTAL
Q
(24) XTAL
(27) GND
(3) i.c.
(13) i.c.
clock
system
Unit
Mode
Control
IC supply 20V Current Switched
IC start-up Supply Limiter Power supply
(4) AOUT
(22) INT
(7) WK / GPI
(16) i.c.
(5) SETVCC
KNX/ EIB TRANSCEIVER
(6)
V33I
(14) (15) (17) (18)
V20 VST SW VCC RVCC
PRODUCTION DATA - JAN 15, 2015
C33I
CV20
LSPS
V20
VCC
CCST ^CST DSPS
CVCC CCVCC
4.3 Full Normal Mode Application
Full Normal Mode Application **4
VVIO
SAVE
MOSI
MISO
SCK
SCS
GND
RXD
TXD
Application
Module
VVIO
VVIO = VVCC
(50mA)
SETVCC=VIO
DVIO
CREC
BUS
Coupling
Module
U1
RTXL
D1
BUSN ₉
RTXL ₁₀
RTX _{RTXH 11}
BUSP ₁₂
i.c.
13
V20 ₁₄
VST ₁₅
i.c.
16
CCST CST
C33I
RSET
33
IC1
E981.03
SAVE
32
MOSI
31
30 ^MISO
SCK
29
SCS
28
GND
27
RXD
26
25 ^TXD
RVCC
LSPS
Q
C20
DSPS ^{CVCC CCVCC CVIO}
GPIO
V_{VIO VCC= 5V}
VCC= 3.3V
OPEN= Alarm
Analog IN
GPIO / ResetN
GPIO
GPIO
GPIO
VVIO
VVCC
DVIO
VVCC= 3.3V (50mA)
SETVCC=GND
VVCC= 5V (30mA)
SETVCC=VVIO
VV20=20V / 20mA
E981.03
Figure 3. Schematic Example (full application)
DC/DC converter active (3.3 V/5 V): I_max = 50/ 30 mA
SETVCC = GND:
VCC = 3 V
SETVCC = VIO:
VCC = 5 V
BS1 = BS0 = GND:
UART 19.2 k baud
V20 used:
additional C_V20,

I_max = 20 mA
UART optional with optical coupler
SPI optional with optical coupler
OTEMP used
WK used
SAVE used
RESET used
AOUT used

optional with optocoupler
optional with optocoupler
optional with optocoupler
optional with optocoupler
optional with insulation
amplifier for analog Signal
In Normal Mode alarm functionality is usable. Alarm is detected in case of an open SETVCC pin.
For other schematics read application notes.
Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Elmos Semiconductor AG
Data Sheet
QM-No.: 25DS0046E.03
13/51