mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 64

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 1 MC9S12XF-Family Reference Manual
1.2.9.5
VDDA, VSSA are the power supply and ground input pins for the voltage regulator and the analog to
digital converters.
1.2.9.6
VRH and VRL are the reference voltage input pins for the analog to digital converter.
1.2.9.7
These pins provide operating voltage and ground for the oscillator and the phased-locked loop. The voltage
supply of nominally 1.8V is derived from the internal voltage regulator when enabled. This allows the
supply voltage to the oscillator and PLL to be bypassed independently. This voltage is generated by the
internal voltage regulator. No static external loading of these pins is permitted.
64
Mnemonic
VSS1, 2, 3
VDDX1
VDDX2
VDDX3
VDDX4
VSSX1
VSSX2
VSSX3
VSSX4
VDDR
VDDF
VDDA
VSSA
VDD
VDDA, VSSA — Power Supply Pins for ATD and VREG
VRH, VRL — ATD Reference Voltage Input Pins
VDDPLL, VSSPLL — Power Supply Pins for PLL
Connecting additional load to this pin is not permitted when the internal
regulator is enabled.
Table 1-11.
15, 90, 52
LQFP
144-pin
134
133
107
110
14
89
53
50
52
17
16
69
70
(1)
MC9S12XF
MC9S12XF - Family Reference Manual, Rev.1.19
Pin Number
112-pin LQFP
15, 66, 42
104
103
14
65
43
40
41
17
16
83
86
—
—
512 Power and Ground Connection Summary
64-pin LQFP
8, 38, 22
NOTE
37
23
60
59
20
21
47
50
—
—
—
—
7
Nominal
Voltage
2.8 V
1.8 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
0 V
0 V
0 V
0 V
0 V
0V
Internal power and ground
generated by internal regulator for
the internal NVM.
Internal power and ground
generated by internal regulator for
the internal core.
External power supply internal
voltage regulator
External power and ground, supply
to pin drivers
External power and ground, supply
to pin drivers
External power and ground, supply
to pin drivers
External power and ground, supply
to pin drivers
Operating voltage and ground for
the analog-to-digital converters
and the reference for the internal
voltage regulator, allows the supply
voltage to the A/D to be bypassed
independently.
Description
Freescale Semiconductor