Freescale Semiconductor
Data Sheet: Technical Data
Document Number: K51P81M100SF2V2
Rev. 3, 6/2013
K51 Sub-Family
K51P81M100SF2V2
Supports the following:
MK51DX256CLK10
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 85°C
• Performance
– Up to 100 MHz ARM Cortex-M4 core with DSP
instructions delivering 1.25 Dhrystone MIPS per
MHz
• Memories and memory interfaces
– Up to 512 KB program flash memory on non-
FlexMemory devices
– Up to 256 KB program flash memory on
FlexMemory devices
– Up to 256 KB FlexNVM on FlexMemory devices
– 4 KB FlexRAM on FlexMemory devices
– Up to 128 KB RAM
– Serial programming interface (EzPort)
• 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
– Memory protection unit with multi-master
protection
– 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
– Segment LCD controller supporting up to 40
frontplanes and 8 backplanes, or 44 frontplanes and
4 backplanes, depending on the package size
– 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
– Two 12-bit DACs
– Two operational amplifiers
– Two transimpedance amplifiers
– 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
– 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.
© 2012–2013 Freescale Semiconductor, Inc.
Table of Contents
1 Ordering parts...........................................................................4
1.1 Determining valid orderable parts......................................4
2 Part identification......................................................................4
2.1 Description.........................................................................4
2.2 Format...............................................................................4
2.3 Fields.................................................................................4
2.4 Example............................................................................5
3 Terminology and guidelines......................................................5
3.1 Definition: Operating requirement......................................5
3.2 Definition: Operating behavior...........................................6
3.3 Definition: Attribute............................................................6
3.4 Definition: Rating...............................................................7
3.5 Result of exceeding a rating..............................................7
3.6 Relationship between ratings and operating
requirements......................................................................7
3.7 Guidelines for ratings and operating requirements............8
3.8 Definition: Typical value.....................................................8
3.9 Typical value conditions....................................................9
4 Ratings......................................................................................10
4.1 Thermal handling ratings...................................................10
4.2 Moisture handling ratings..................................................10
4.3 ESD handling ratings.........................................................10
4.4 Voltage and current operating ratings...............................10
5 General.....................................................................................11
5.1 AC electrical characteristics..............................................11
5.2 Nonswitching electrical specifications...............................11
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
Voltage and current operating requirements.........12
LVD and POR operating requirements.................13
Voltage and current operating behaviors..............13
Power mode transition operating behaviors..........15
Power consumption operating behaviors..............16
EMC radiated emissions operating behaviors.......19
Designing with radiated emissions in mind...........20
Capacitance attributes..........................................20
6.8.5
6.8.6
6.8.7
6.8.8
6.6.7
6.6.6
6 Peripheral operating requirements and behaviors....................23
6.1 Core modules....................................................................23
6.1.1
6.1.2
Debug trace timing specifications.........................23
JTAG electricals....................................................24
6.2 System modules................................................................27
6.3 Clock modules...................................................................27
6.3.1
6.3.2
6.3.3
MCG specifications...............................................27
Oscillator electrical specifications.........................29
32 kHz oscillator electrical characteristics.............31
6.4 Memories and memory interfaces.....................................32
6.4.1
6.4.2
Flash electrical specifications................................32
EzPort switching specifications.............................37
6.5 Security and integrity modules..........................................38
6.6 Analog...............................................................................38
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
ADC electrical specifications.................................38
CMP and 6-bit DAC electrical specifications.........45
12-bit DAC electrical characteristics.....................48
Op-amp electrical specifications...........................51
Transimpedance amplifier electrical
specifications — full range....................................52
Transimpedance amplifier electrical
specifications — limited range..............................53
Voltage reference electrical specifications............54
6.7 Timers................................................................................55
6.8 Communication interfaces.................................................55
6.8.1
6.8.2
6.8.3
6.8.4
USB electrical specifications.................................55
USB DCD electrical specifications........................56
USB VREG electrical specifications......................56
DSPI switching specifications (limited voltage
range)....................................................................56
DSPI switching specifications (full voltage range).58
Inter-Integrated Circuit Interface (I2C) timing........60
UART switching specifications..............................61
I2S/SAI switching specifications............................61
5.3 Switching specifications.....................................................20
5.3.1
5.3.2
Device clock specifications...................................20
General switching specifications...........................21
6.9 Human-machine interfaces (HMI)......................................67
6.9.1
6.9.2
TSI electrical specifications...................................67
LCD electrical characteristics................................68
5.4 Thermal specifications.......................................................22
5.4.1
5.4.2
Thermal operating requirements...........................22
Thermal attributes.................................................22
7 Dimensions...............................................................................69
7.1 Obtaining package dimensions.........................................70
8 Pinout........................................................................................70
K51 Sub-Family Data Sheet, Rev. 3, 6/2013.
2
Freescale Semiconductor, Inc.
DSP and ARM Processors
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