K20P48M50SF0 Datasheet, PDF (2/60 Pages) Freescale Semiconductor, Inc – K20 Sub-Family

Table of Contents
1 Ordering parts...........................................................................3
5.4.1 Thermal operating requirements...........................21
1.1 Determining valid orderable parts......................................3
5.4.2 Thermal attributes.................................................21
2 Part identification......................................................................3
6 Peripheral operating requirements and behaviors....................22
2.1 Description.........................................................................3
6.1 Core modules....................................................................22
2.2 Format...............................................................................3
6.1.1 JTAG electricals....................................................22
2.3 Fields.................................................................................3
6.2 System modules................................................................25
2.4 Example............................................................................4
6.3 Clock modules...................................................................25
3 Terminology and guidelines......................................................4
6.3.1 MCG specifications...............................................25
3.1 Definition: Operating requirement......................................4
6.3.2 Oscillator electrical specifications.........................27
3.2 Definition: Operating behavior...........................................5
6.3.3 32 kHz Oscillator Electrical Characteristics...........29
3.3 Definition: Attribute............................................................5
6.4 Memories and memory interfaces.....................................30
3.4 Definition: Rating...............................................................6
6.4.1 Flash electrical specifications................................30
3.5 Result of exceeding a rating..............................................6
6.4.2 EzPort Switching Specifications............................34
3.6 Relationship between ratings and operating
6.5 Security and integrity modules..........................................35
requirements......................................................................6
6.6 Analog...............................................................................35
3.7 Guidelines for ratings and operating requirements............7
6.6.1 ADC electrical specifications.................................35
3.8 Definition: Typical value.....................................................7
6.6.2 CMP and 6-bit DAC electrical specifications.........40
3.9 Typical value conditions....................................................8
6.6.3 Voltage reference electrical specifications............43
4 Ratings......................................................................................9
6.7 Timers................................................................................44
4.1 Thermal handling ratings...................................................9
6.8 Communication interfaces.................................................44
4.2 Moisture handling ratings..................................................9
6.8.1 USB electrical specifications.................................44
4.3 ESD handling ratings.........................................................9
6.8.2 USB DCD electrical specifications........................45
4.4 Voltage and current operating ratings...............................9
6.8.3 USB VREG electrical specifications......................45
5 General.....................................................................................10
6.8.4 DSPI switching specifications (limited voltage
5.1 AC electrical characteristics..............................................10
range)....................................................................46
5.2 Nonswitching electrical specifications...............................11
6.8.5 DSPI switching specifications (full voltage range).47
5.2.1 Voltage and current operating requirements.........11
6.8.6 I2C switching specifications..................................49
5.2.2 LVD and POR operating requirements.................11
6.8.7 UART switching specifications..............................49
5.2.3 Voltage and current operating behaviors..............12
6.8.8 I2S/SAI Switching Specifications..........................49
5.2.4 Power mode transition operating behaviors..........13
6.9 Human-machine interfaces (HMI)......................................54
5.2.5 Power consumption operating behaviors..............14
6.9.1 TSI electrical specifications...................................54
5.2.6 EMC radiated emissions operating behaviors.......18
7 Dimensions...............................................................................55
5.2.7 Designing with radiated emissions in mind...........19
7.1 Obtaining package dimensions.........................................55
5.2.8 Capacitance attributes..........................................19
8 Pinout........................................................................................56
5.3 Switching specifications.....................................................19
8.1 K20 Signal Multiplexing and Pin Assignments..................56
5.3.1 Device clock specifications...................................19
8.2 K20 Pinouts.......................................................................58
5.3.2 General switching specifications...........................20
9 Revision History........................................................................58
5.4 Thermal specifications.......................................................21
K20 Sub-Family Data Sheet, Rev. 4 5/2012.
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Freescale Semiconductor, Inc.