56F801 Datasheet, PDF (7/44 Pages) Motorola, Inc – 56F801 16-bit Hybrid Controller

Freescale Semiconductor, Inc.
Power and Ground Signals
2.2 Power and Ground Signals
Table 3. Power Inputs
No. of Pins Signal Name
Signal Description
4
V_DD
Power—These pins provide power to the internal structures of the chip, and should
all be attached to V_DD.
1
V_DDA
Analog Power—This pin is a dedicated power pin for the analog portion of the chip
and should be connected to a low noise 3.3V supply.
No. of Pins
4
1
1
Table 4. Grounds
Signal Name
Signal Description
V_SS
V_SSA
TCS
GND—These pins provide grounding for the internal structures of the chip,
and should all be attached to V_SS.
Analog Ground—This pin supplies an analog ground.
TCS—This Schmitt pin is reserved for factory use and must be tied to V_SS for
normal use. In block diagrams, this pin is considered an additional V_SS.
Table 5. Supply Capacitors and VPP
No. of Signal Signal
State
Pins Name Type During Reset
Signal Description
2
VCAPC Supply
Supply
VCAPC—Connect each pin to a 2.2 µFor greater bypass capacitor
in order to bypass the core logic voltage regulator (required for
proper chip operation). For more information, refer to Section 5.2.
2.3 Clock and Phase Locked Loop Signals
Table 6. PLL and Clock
No. of Signal
Pins Name
Signal
State
Type During Reset
Signal Description
1
EXTAL Input
GPIOB2 Input/
Output
Input
Input
External Crystal Oscillator Input—This input should be connected
to an 8MHz external crystal or ceramic resonator. For more
information, please refer to Section 3.5.
Port B GPIO—This multiplexed pin is a General Purpose I/O (GPIO)
pin that can be programmed as an input or output pin. This I/O can be
utilized when using the on-chip relaxation oscillator so the EXTAL pin
is not needed.
56F801 Technical Data
7
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