XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 27

• Manufacturer Part Number: XC912BC32CFU8
• Description: M68HC12B Family Data Sheet
• Manufacturer: Motorola Semiconductor Products

1.6.2.2 V
1.6.2.3 V
1.6.2.4 V
1.6.2.5 V
M68HC12B Family — Rev. 8.0
MOTOROLA
DDX
DDA
RH
FP
(MC68HC912B32 and MC68HC912BC32 only)
and V
and V
and V
RL
SSX
SSA
V
transitions place high, short-duration current demands on the power supply, use
bypass capacitors with high-frequency characteristics and place them as close to
the MCU as possible. Bypass requirements depend on how heavily the MCU pins
are loaded.
V
converter (ATD). This allows the supply voltage to be bypassed independently.
V
V
normal operation for the MC68HC912B32 and MC68HC912BC32 only.
DDX
DDA
RH
FP
Mnemonic
is the FLASH EEPROM programming voltage and supply voltage during
and V
V
V
V
V
V
V
V
V
V
and V
and V
DDX
DDA
SSX
SSA
DD
RH
SS
RL
FP
RL
SSX
SSA
Table 1-2. Power and Ground Connection Summary
are the reference voltage pins for the ATD.
are the external power supply and ground pins. Because fast signal
are the power supply and ground pins for the analog-to-digital
Pin Number
10, 47
11, 48
31, 78
30, 77
59
60
49
50
69
General Description
Internal power and ground
External power and ground supply to pin drivers
Operating voltage and ground for the ATD; allows the supply
voltage to be bypassed independently
Reference voltages for the analog-to-digital converter
Programming voltage for the FLASH EEPROM and required
supply for normal operation — MC68HC912B32 and
MC68HC912BC32 only.
Pin 69 is a no connect (NC) on the MC68HC12BE32 and
MC68HC12BC32.
Description
Pinout and Signal Descriptions
General Description
Data Sheet
27