K51P121M100SF2V2 데이터 시트보기 (PDF) - Freescale Semiconductor

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K51P121M100SF2V2

K51 Sub-Family

Freescale Semiconductor 

General

2. VDD = 3.3 V, TA = 25 °C, fOSC = 12 MHz (crystal), fSYS = 96 MHz, fBUS = 48MHz

3. Specified according to Annex D of IEC Standard 61967-2, Measurement of Radiated Emissions—TEM Cell and Wideband

TEM Cell Method

5.2.7 Designing with radiated emissions in mind

To find application notes that provide guidance on designing your system to minimize

interference from radiated emissions:

1. Go to http://www.freescale.com.

2. Perform a keyword search for “EMC design.”

5.2.8 Capacitance attributes

Table 8. Capacitance attributes

Symbol

CIN_A

CIN_D

Description

Input capacitance: analog pins

Input capacitance: digital pins

Min.

Max.

Unit

—

7

pF

—

7

pF

5.3 Switching specifications

5.3.1 Device clock specifications

Table 9. Device clock specifications

Symbol

fSYS

fSYS_USB

fBUS

fFLASH

fLPTMR

fSYS

fBUS

fFLASH

fERCLK

Description

Normal run mode

System and core clock

System and core clock when Full Speed USB in

operation

Bus clock

Flash clock

LPTMR clock

VLPR mode1

System and core clock

Bus clock

Flash clock

External reference clock

Min.

—

20

—

—

—

—

—

—

—

Table continues on the next page...

Max.

100

—

50

25

25

4

4

1

16

Freescale Semiconductor, Inc.

K51 Sub-Family Data Sheet, Rev. 1, 6/2012.

Preliminary

General Business Information

Unit

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

Notes

19

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