MC9S12DT256C View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

MFG CO.

MC9S12DT256C

device made up of standard HCS12 blocks and the HCS12 processor core

Freescale Semiconductor 

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MC9S12DP256B Device User GFuirdeee—scV0a2.l1e5 Semiconductor, Inc.

• Every supply pair must be decoupled by a ceramic capacitor connected as near as

possible to the corresponding pins(C1 - C6).

• Central point of the ground star should be the VSSR pin.

• Use low ohmic low inductance connections between VSS1, VSS2 and VSSR.

• VSSPLL must be directly connected to VSSR.

• Keep traces of VSSPLL, EXTAL and XTAL as short as possible and occupied board area

for C7, C8, C11 and Q1 as small as possible.

• Do not place other signals or supplies underneath area occupied by C7, C8, C10 and Q1

and the connection area to the MCU.

• Central power input should be fed in at the VDDA/VSSA pins.

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