TC1775 Datasheet, PDF (68/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
Parameter Interpretation
The parameters listed on the following pages partly represent the characteristics of the
TC1775 and partly its demands on the system. To aid in interpreting the parameters
right, when evaluating them for a design, they are marked in column “Symbol”:
CC (Controller Characteristics):
The logic of the TC1775 will provide signals with the respective timing characteristics.
SR (System Requirement):
The external system must provide signals with the respective timing characteristics to
the TC1775.
Pin Classes
The TC1775 has three classes of digital I/O pins:
– Class A pins, which are 3.3 V to 5 V nominal voltage pins
– Class B pins, which are 2.5 V nominal voltage pins (input tolerant for 3.3 V)
– Class C pins, which are 2.5 V nominal voltage pins only
Table 10 shows the assignments of all digital I/O pins to pin classes and to V_DD power
supply pins.
Table 10 Assignments of Digital Pins to Pin Classes and Power Supply Pins
Pins
Port 8 to Port 13
CLKSEL[2:0], BYPASS,
CFG[3:0], HDRST
Port 0 to 5
TRST, TCK, TDI, TDO, TMS,
ODCSE, BRKIN, BRKOUT,
NMI, PORST,
CLKOUT, CLKIN
TESTMODE
Core supply, no pins assigned
XTAL1, XTAL2, XTAL3, XTAL4
Pin Classes
Power Supply
Class A
V_DDP813
(nominal 3.0 to 5.25 V)
Class B
(nominal 2.5 V, 3.3 V
tolerant)
V_DDP05
(nominal 2.5 V)
Class C
(nominal 2.5 V)
V_DD, V_DDSRAM,
V_DDSB
V_DDPLL
V_DDOSC
V_SS
V_SSPLL
V_SSOSC
Data Sheet
64
V1.2, 2002-05