PEB 2085
Pin Definitions and Functions of PEB 2085 (cont’d)
Pin No. Pin No.
P-DIP-40 P-LCC-44
Symbol Input (I)
Output (O)
Function
10
21
28
11
24
31
VSSD
VSSA
VDD
–
Digital ground
–
–
Analog ground
Power supply (5 V ± 5%)
23
22
26
25
XTAL1
XTAL2
I
O
Connection for crystal or external clock input
Connection for external crystal. Left
unconnected if external clock is used.
24
25
27
28
SR2
SR1
I
O
S Bus Receiver Input
S Bus Receiver Output (2.5 V reference)
26
29
UFI
O
Connection for external pre-filter for S Bus
receiver, if used.
29
30
32
33
SX1
SX2
O
O
S Bus Transmitter Output (positive)
S Bus Transmitter Output (negative)
31
32
34
35
IDP0(DD) I/O
IDP1(DU) I/O
IOM Data Port 0 (DD)
IOM Data Port 1 (DU)
IOM-1: IDP1: Open-drain with internal pull-
up resistor
IDP0: Push-pull
IOM-2: Open drain without internal pull-up
resistor or push-pull (ADF2:ODS)
Semiconductor Group
15
INFINEON [ Infineon ]
