XC2287M Datasheet, PDF (49/142 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance XC2000 Family Derivatives / Base Line

XC2287M, XC2286M, XC2285M
XC2000 Family Derivatives / Base Line
General Device Information
Table 5
Pin Definitions and Functions (cont’d)
Pin Symbol
Ctrl. Type Function
2,
36,
38,
72,
74,
108,
110,
144
V_DDPB
-
PS/B Digital Pad Supply Voltage for Domain B
Connect decoupling capacitors to adjacent V_DDP/
V_SS pin pairs as close as possible to the pins.
Note: The on-chip voltage regulators and all ports
except P5, P6 and P15 are fed from supply
voltage V_DDPB.
1, V_SS
37,
73,
109
-
PS/-- Digital Ground
All V_SS pins must be connected to the ground-line
or ground-plane.
Note: Also the exposed pad is connected
internally to V_SS. To improve the EMC
behavior, it is recommended to connect the
exposed pad to the board ground.
For thermal aspects, please refer to
Section 5.1. Board layout examples are
given in an application note.
1) To generate the reference clock output for bus timing measurement, f_SYS must be selected as source for
EXTCLK and P2.8 must be selected as output pin. Also the high-speed clock pad must be enabled. This
configuration is referred to as reference clock output signal CLKOUT.
Data Sheet
49
V2.0, 2009-03