TC1775 Datasheet, PDF (65/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
Power Supply
Figure 20 shows the TC1775’s power supply concept, where certain logic modules are
individually supplied with power. This concept improves the EMI behavior by reduction
of the noise cross coupling. Also the operation margin is improved in sensitive modules
like the A/D converter by noise reduction.
TC1775
V _DDA0
(2.5 V)
V _SSA0
V _DDM
(5 V)
V _SSM
V _DDSC
(5 V)
V _SSSC
V _DDA1
(2.5 V)
V _SSA1
Short Circuit /
Broken W ire Logic
Short Circuit /
Broken W ire Logic
ADC0
ADC1
Control Logic
Control Logic
PCP
M emory
DMU
PMU
G PIO
P o rts
(P 8 -P 1 3 )
EBU
Ports
(P 0 -P 5 )
CPU &
Control & PLL OSC
P e rip h e ra ls
V _DDSRAM
(2.5 V)
V _SS
V _DDSB
(2.5 V)
V _SS
V _DDP813
(3.3 - 5 V)
V _SS
V _DDP05
(2.5 V)
V _SS
Figure 20 TC1775 Power Supply Concept
V_DD
(2.5 V)
V _SS
V_DDPLL V_DDOSC
(2.5 V) (2.5 V)
V_SSPLL V_DDOSC
MCD04878
Data Sheet
61
V1.2, 2002-05