Freescale Semiconductor
Data Sheet: Technical Data
Document Number: K20P81M72SF1
Rev. 3, 11/2012
K20 Sub-Family
K20P81M72SF1
Supports: MK20DX64VLK7,
MK20DX128VLK7, MK20DX256VLK7
Features
• Operating Characteristics
– Voltage range: 1.71 to 3.6 V
– Flash write voltage range: 1.71 to 3.6 V
– Temperature range (ambient): -40 to 105°C
• Clocks
– 3 to 32 MHz crystal oscillator
– 32 kHz crystal oscillator
– Multi-purpose clock generator
• System peripherals
– Multiple low-power modes to provide power
optimization based on application requirements
– 16-channel DMA controller, supporting up to 63
request sources
– External watchdog monitor
– Software watchdog
– Low-leakage wakeup unit
• Security and integrity modules
– Hardware CRC module to support fast cyclic
redundancy checks
– 128-bit unique identification (ID) number per chip
• Human-machine interface
– Low-power hardware touch sensor interface (TSI)
– General-purpose input/output
• Analog modules
– Two 16-bit SAR ADCs
– Programmable gain amplifier (PGA) (up to x64)
integrated into each ADC
– 12-bit DAC
– Three analog comparators (CMP) containing a 6-bit
DAC and programmable reference input
– Voltage reference
• Timers
– Programmable delay block
– Eight-channel motor control/general purpose/PWM
timer
– Two 2-channel quadrature decoder/general purpose
timers
– Periodic interrupt timers
– 16-bit low-power timer
– Carrier modulator transmitter
– Real-time clock
• Communication interfaces
– USB full-/low-speed On-the-Go controller with on-
chip transceiver
– Controller Area Network (CAN) module
– Two SPI modules
– Two I2C modules
– Four UART modules
– I2S module
Freescale reserves the right to change the detail specifications as may be
required to permit improvements in the design of its products.
© 2012 Freescale Semiconductor, Inc.
Table of Contents
1 Ordering parts...........................................................................3
1.1 Determining valid orderable parts......................................3
2 Part identification......................................................................3
2.1 Description.........................................................................3
2.2 Format...............................................................................3
2.3 Fields.................................................................................3
2.4 Example............................................................................4
3 Terminology and guidelines......................................................4
3.1 Definition: Operating requirement......................................4
3.2 Definition: Operating behavior...........................................5
3.3 Definition: Attribute............................................................5
3.4 Definition: Rating...............................................................6
3.5 Result of exceeding a rating..............................................6
3.6 Relationship between ratings and operating
requirements......................................................................6
3.7 Guidelines for ratings and operating requirements............7
3.8 Definition: Typical value.....................................................7
3.9 Typical value conditions....................................................8
4 Ratings......................................................................................9
4.1 Thermal handling ratings...................................................9
4.2 Moisture handling ratings..................................................9
4.3 ESD handling ratings.........................................................9
4.4 Voltage and current operating ratings...............................9
5 General.....................................................................................10
5.1 AC electrical characteristics..............................................10
5.2 Nonswitching electrical specifications...............................10
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
Voltage and current operating requirements.........11
LVD and POR operating requirements.................11
Voltage and current operating behaviors..............12
Power mode transition operating behaviors..........13
Power consumption operating behaviors..............14
Designing with radiated emissions in mind...........18
Capacitance attributes..........................................18
6.8.6
6.8.7
6.8.8
6.8.9
6 Peripheral operating requirements and behaviors....................21
6.1 Core modules....................................................................22
6.1.1
6.1.2
Debug trace timing specifications.........................22
JTAG electricals....................................................22
6.2 System modules................................................................25
6.3 Clock modules...................................................................25
6.3.1
6.3.2
6.3.3
MCG specifications...............................................25
Oscillator electrical specifications.........................27
32 kHz Oscillator Electrical Characteristics...........30
6.4 Memories and memory interfaces.....................................30
6.4.1
6.4.2
6.4.3
Flash electrical specifications................................30
EzPort Switching Specifications............................35
Flexbus Switching Specifications..........................36
6.5 Security and integrity modules..........................................39
6.6 Analog...............................................................................39
6.6.1
6.6.2
6.6.3
6.6.4
ADC electrical specifications.................................39
CMP and 6-bit DAC electrical specifications.........47
12-bit DAC electrical characteristics.....................49
Voltage reference electrical specifications............52
6.7 Timers................................................................................53
6.8 Communication interfaces.................................................53
6.8.1
6.8.2
6.8.3
6.8.4
6.8.5
USB electrical specifications.................................53
USB DCD electrical specifications........................54
USB VREG electrical specifications......................54
CAN switching specifications................................55
DSPI switching specifications (limited voltage
range)....................................................................55
DSPI switching specifications (full voltage range).56
I2C switching specifications..................................58
UART switching specifications..............................58
I2S/SAI Switching Specifications..........................58
6.9 Human-machine interfaces (HMI)......................................63
6.9.1
TSI electrical specifications...................................63
5.3 Switching specifications.....................................................19
5.3.1
5.3.2
Device clock specifications...................................19
General switching specifications...........................19
7 Dimensions...............................................................................64
7.1 Obtaining package dimensions.........................................64
8 Pinout........................................................................................64
8.1 K20 Signal Multiplexing and Pin Assignments..................64
8.2 K20 Pinouts.......................................................................68
9 Revision History........................................................................69
5.4 Thermal specifications.......................................................20
5.4.1
5.4.2
Thermal operating requirements...........................20
Thermal attributes.................................................21
K20 Sub-Family Data Sheet, Rev. 3, 11/2012.
2
Freescale Semiconductor, Inc.
Ordering parts
1 Ordering parts
1.1 Determining valid orderable parts
Valid orderable part numbers are provided on the web. To determine the orderable part
numbers for this device, go to
www.freescale.com
and perform a part number search for
the following device numbers: PK20 and MK20 .
2 Part identification
2.1 Description
Part numbers for the chip have fields that identify the specific part. You can use the
values of these fields to determine the specific part you have received.
2.2 Format
Part numbers for this device have the following format:
Q K## A M FFF R T PP CC N
2.3 Fields
This table lists the possible values for each field in the part number (not all combinations
are valid):
Field
Q
K##
A
M
Qualification status
Kinetis family
Key attribute
Flash memory type
Description
Values
• M = Fully qualified, general market flow
• P = Prequalification
• K20
• D = Cortex-M4 w/ DSP
• F = Cortex-M4 w/ DSP and FPU
• N = Program flash only
• X = Program flash and FlexMemory
Table continues on the next page...
K20 Sub-Family Data Sheet, Rev. 3, 11/2012.
Freescale Semiconductor, Inc.
3
Terminology and guidelines
Field
FFF
Description
Program flash memory size
•
•
•
•
•
•
32 = 32 KB
64 = 64 KB
128 = 128 KB
256 = 256 KB
512 = 512 KB
1M0 = 1 MB
Values
R
Silicon revision
• Z = Initial
• (Blank) = Main
• A = Revision after main
• V = –40 to 105
• C = –40 to 85
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
FM = 32 QFN (5 mm x 5 mm)
FT = 48 QFN (7 mm x 7 mm)
LF = 48 LQFP (7 mm x 7 mm)
LH = 64 LQFP (10 mm x 10 mm)
MP = 64 MAPBGA (5 mm x 5 mm)
LK = 80 LQFP (12 mm x 12 mm)
LL = 100 LQFP (14 mm x 14 mm)
MC = 121 MAPBGA (8 mm x 8 mm)
LQ = 144 LQFP (20 mm x 20 mm)
MD = 144 MAPBGA (13 mm x 13 mm)
MJ = 256 MAPBGA (17 mm x 17 mm)
5 = 50 MHz
7 = 72 MHz
10 = 100 MHz
12 = 120 MHz
15 = 150 MHz
T
PP
Temperature range (°C)
Package identifier
CC
Maximum CPU frequency (MHz)
N
Packaging type
• R = Tape and reel
• (Blank) = Trays
2.4 Example
This is an example part number:
MK20DN512ZVMD10
3 Terminology and guidelines
3.1 Definition: Operating requirement
An
operating requirement
is a specified value or range of values for a technical
characteristic that you must guarantee during operation to avoid incorrect operation and
possibly decreasing the useful life of the chip.
K20 Sub-Family Data Sheet, Rev. 3, 11/2012.
4
Freescale Semiconductor, Inc.
Terminology and guidelines
3.1.1 Example
This is an example of an operating requirement, which you must meet for the
accompanying operating behaviors to be guaranteed:
Symbol
V
DD
Description
1.0 V core supply
voltage
0.9
Min.
1.1
Max.
V
Unit
3.2 Definition: Operating behavior
An
operating behavior
is a specified value or range of values for a technical
characteristic that are guaranteed during operation if you meet the operating requirements
and any other specified conditions.
3.2.1 Example
This is an example of an operating behavior, which is guaranteed if you meet the
accompanying operating requirements:
Symbol
I
WP
Description
Digital I/O weak pullup/ 10
pulldown current
Min.
130
Max.
µA
Unit
3.3 Definition: Attribute
An
attribute
is a specified value or range of values for a technical characteristic that are
guaranteed, regardless of whether you meet the operating requirements.
3.3.1 Example
This is an example of an attribute:
Symbol
CIN_D
Description
Input capacitance:
digital pins
—
Min.
7
Max.
pF
Unit
K20 Sub-Family Data Sheet, Rev. 3, 11/2012.
Freescale Semiconductor, Inc.
5
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