Analog Integrated Circuit Device Data

Freescale Semiconductor

11

MM912_P812

PIN CONNECTIONS

MCU

76

PAD09

VSS2 (10)

A/D Input

Ground

(10)

PAD09 ON S12P

Ground of 3.3 V

regulator (10)

PAD09 is the general purpose input or output pin and analog input of the

analog-to-digital converter, A/D Use voltage divider if necessary, and

ESD protection capacitor. Use of low pass filter as necessary.

(Only on S12P, not on S12XEP100)

See description of VDD above. Only on S12XEP100 (9)

MCU

77

PAD00

A/D Input

PAD00

PAD00 is the general purpose input or output pin and analog input AN0

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

78

PAD01

A/D Input

PAD01

PAD01 is the general purpose input or output pin and analog input AN1

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

79

PAD02

A/D Input

PAD02

PAD02 is the general purpose input or output pin and analog input AN2

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

80

PAD03

A/D Input

PAD03

PAD03 is the general purpose input or output pin and analog input AN3

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

81

PAD04

A/D Input

PAD04

PAD04 is the general purpose input or output pin and analog input AN4

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

82

PAD05

A/D Input

PAD05

PAD05 is the general purpose input or output pin and analog input AN5

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

83

PAD06

A/D Input

PAD06

PAD06 is the general purpose input or output pin and analog input AN6

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

84

PAD07

A/D Input

PAD07

PAD07 is the general purpose input or output pin and analog input AN7

of the analog-to-digital converter, A/D. Use voltage divider if necessary,

and ESD protection capacitor. Use of low pass filter as necessary.

MCU

85

VDDA

Supply

Input

VDDA

This is the power supply input pin for the analog-to-digital converter and

the voltage regulator. Connect to VCC and use a bypass capacitor,

100 nF to Ground.

MCU

86

VRH

Supply

Input

VRH

VRH and VRL are the reference voltage input pins for the analog-to-

digital converter. Connect to VCC and use a bypass capacitor, 100 nF to

Ground.

MCU

87

VRL

Supply

Input

VRL

VRH and VRL are the reference voltage input pins for the analog-to-

digital converter. Connect to Ground.

MCU

88

VSSA

Ground

VSSA

This is the ground input pin for the analog-to-digital converter and the

voltage regulator. Connect to Ground.

MCU

89

PS0/RXD

I/O

PS0/

RXD (SCI)

Port S, I/O pin 0 is a general purpose input or output pin. It can be

configured as the receive pin RXD of serial communication interface

(SCI).

If used for ISO9141 connect to pin 4, MRX.

Notes

10.

S12XEP100 signal noted for reuse of PC board for the calibration device.

Table 4. MM912_P812 Pin Definitions

Analog

or MCU

Pin

Pin Name

Pin

Function

Formal Name

Description and Recommendations