E981.03A38HB ELMOS Semiconductor, E981.03A38HB Datasheet - Page 3

• Manufacturer Part Number: E981.03A38HB
• Description: Interface - Specialized KNX/EIB transceiver
• Manufacturer: ELMOS Semiconductor

Specifications of E981.03A38HB

• Rohs: yes
• Product Type: KNX/EIB Transceiver
• Operating Supply Voltage: 3.3 V
• Supply Current: 10 mA
• Maximum Power Dissipation: 1 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C

Pin Description
ELMOS Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
1) D = digital, A = analog, S = supply, I = input, O = output, HV = high voltage
2) Internally weak pulled to V33I/2. A open pin is the alarm condition. To select a VCC voltage push it to VIO or pull it to GND.
KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JUL 2, 2012
ELMOS Semiconductor AG
Name
OTEMP
RESET
i.c.
AOUT
SETVCC
V33I
WK
CREC
BUSN
RTXL
RTXH
BUSP
i.c.
V20
VST
i.c.
SW
VCC
VIO
BS0
BS1
INT
EXTAL
XTAL
TXD
RXD
GND
SCS
SCK
MISO
MOSI
SAVE
EP
Type
D_O
D_IO
-
A_O
D_I
S
HV_D_IO -
HV_A_I
S
HV_A_IO -
HV_A_IO -
HV_S
-
HV_S
HV_S
-
HV_A_IO -
A_I
S
D_I
D_I
D_O
D_O
D_I
D_O
D_I
S
D_I
D_I
D_IO
D_IO
D_O
1)
Pull
-
Up
-
-
2)
-
-
-
-
-
-
-
-
-
-
Down
Down
-
-
-
-
Down
-
Up
Down
-
-
Up
Description
Over-temperature warning
Bidirectional reset pin (low active)
Reserved for factory use, connect to GND during operation.
Analog multiplexer output
Combination of
- selection of the VCC output voltage and
- alarm function activation
3.3V internal supply: Connect to external capacitor
Output with tri-state capability; used for KNX telegram trigger
Output [default]: VIO related output levels
Input: VST tolerant. Thresholds V
Receive pin for KNX bus communication
Connection to the negative bus line
Ground connection of external resistor RTX
KNX send output pin - upper connection of external resistor RTX
Connection to positive KNX bus via external diode for reverse polar-
ity protection
Reserved for factory use, connect to GND during operation.
20V DC supply output
Connection to external storage capacitor CST
Do not connect externally
Switched output of DC/ DC converter
DC/ DC converter output voltage control input
Supply for digital IO pins (connect to VCC if no external supply is
used)
Baud rate select pin 0
Baud rate select pin 1
Used for KNX collision trigger (low active)
External crystal terminal 2
External crystal terminal 1 or clock input if no crystal is connected
UART transmit signal: from E981.03 to host processor (push/pull)
UART receive signal: from host processor to E981.03
GND pin
SPI chip select (low active) or General Purpose Input if SPI is disabled
SPI clock or GPI if SPI is disabled
SPI master in slave out data line or GPIO if SPI is disabled
SPI master out slave in data line or GPIO if SPI is disabled
VST under voltage pre alarm signal (low active)
Exposed Die Pad
Data Sheet
3/51
V33i
related
QM-No.: 25DS0046E.01
E981.03