MC912DG128A Motorola, MC912DG128A Datasheet - Page 32

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

XFC
V
Pinout and Signal Descriptions
MC68HC912DT128A Rev 2.0
32
STBY
Mnemonic
V
V
V
V
V
V
V
V
V
V
DDX
DDA
SSX
SSA
RH1
RH0
RL1
RL0
DD
SS
Table 5 MC68HC912DT128A Power and Ground Connection Summary
NOTE:
112-pin QFP
Pin Number
42, 107
40, 106
12, 65
14, 66
85
88
86
87
67
68
The VSSPLL pin should always be grounded even if the PLL is not used.
The VDDPLL pin should not be left floating. It is recommended to
connect the VDDPLL pin to ground if the PLL is not used.
PLL loop filter. Please see
information on how to calculate PLL loop filter elements. Any current
leakage on this pin must be avoided.
Stand-by voltage supply to static RAM. Used to maintain the contents of
RAM with minimal power when the rest of the chip is powered down.
Internal power and ground.
External power and ground, supply to pin drivers.
Operating voltage and ground for the analog-to-digital converter, allows the
supply voltage to the A/D to be bypassed independently.
Reference voltages for the analog-to-digital converter 1
Reference voltages for the analog-to-digital converter 0.
Pinout and Signal Descriptions
Figure 7 PLL Loop FIlter Connections
MCU
Appendix B: CGM Practical Aspects
XFC
Description
VDDPLL
R
C
0
0
VDDPLL
C
a
MOTOROLA
for
6-pins