16-bit Microcontroller HCS12H Family, Rev. 11.1

18

Freescale Semiconductor

PRELIMINARY

Pin Assignments

VDDA





Supply input pins for the voltage regulator and the analog to

digital converter. Tolerance = 5V

± 5%.

VSSA





VRH





Reference voltage input pins for the analog to digital

converter.

VRL





VDDM1





Supply input pins for motor 0 and motor 1 output drivers.

Tolerance = 5 V ± 10%.

VSSM1





VDDM2





Supply input pins for motor 2 and motor 3 output drivers.

Tolerance = 5 V ± 10%.

VSSM2





VDDM3





Supply input pins for motor 4 and motor 5 output drivers.

Tolerance = 5 V ± 10%.

VSSM3





VDDPLL





PLL supply output pins. No load allowed except for bypass

capacitors.

VSSPLL





VDDX1





Supply input pins for input/output drivers. Tolerance = 5V

±

5%.

VSSX1





VDDX2





VSSX2





VDD1





Core supply output pins. No load allowed except for bypass

capacitors.

VSS1





VSS2





VDDR





Power supply input pin for voltage regulator. Nominal 5V

Table 2 Pin Descriptions

Note: Features shown in bold are not available in the 9S12H256 112 pin QFP package.

Note: Features shown in Italics are only available for the “Z” versions

Pin Name

Function 1

Pin Name

Function 2

Pin Name

Function 3

Pin Name

Function 4

Description