Table of Contents
1 Features.............................................................................. 4
1.1 Block diagram............................................................ 4
1.2 Radio features............................................................4
1.3 Microcontroller features............................................. 5
2 Transceiver description....................................................... 8
2.1 Key specifications...................................................... 8
2.2 RF interface and usage..............................................9
2.2.1 Clock output feature.......................................9
2.3 Transceiver functions.................................................10
2.3.1 Receive..........................................................10
2.3.2 Transmit.........................................................10
2.3.3 Clear channel assessment (CCA), energy
detection (ED), and link quality indicator
(LQI)...............................................................11
2.3.4 Packet processor........................................... 12
2.3.5 Packet buffering.............................................13
2.4 Dual PAN ID...............................................................14
3 System and power management.........................................15
3.1 Modes of operation.................................................... 15
3.2 Power management...................................................15
4 Radio Peripherals................................................................16
4.1 Clock output (CLK_OUT)...........................................16
4.2 General-purpose input output (GPIO)........................16
4.3 Serial peripheral interface (SPI).................................18
4.3.1 Features.........................................................18
4.4 Antenna diversity....................................................... 19
4.5 RF Output Power Distribution.................................... 19
5 MKW2xD operating modes................................................. 20
5.1 Transceiver Transmit Current Distribution................. 21
6 MKW2xD electrical characteristics......................................22
6.1 Radio recommended operating conditions................ 22
6.2 Ratings.......................................................................23
6.2.1 Thermal handling ratings............................... 23
6.2.2 Moisture handling ratings...............................23
6.2.3 ESD handling ratings..................................... 23
6.2.4 Voltage and current operating ratings............24
7 MCU Electrical characteristics.............................................24
7.1 Maximum ratings........................................................24
7.2 AC electrical characteristics.......................................25
7.3 Nonswitching electrical specifications........................26
7.3.1 Voltage and current operating requirements..26
7.3.2 LVD and POR operating requirements.......... 27
7.3.3 Voltage and current operating behaviors.......28
7.3.4 Power mode transition operating behaviors...28
7.3.5 Power consumption operating behaviors.......29
7.3.6 EMC radiated emissions operating
behaviors....................................................... 33
7.3.7 Designing with radiated emissions in mind.... 34
7.3.8 Capacitance attributes................................... 34
7.4 Switching specifications.............................................34
7.4.1 Device clock specifications............................ 34
7.4.2 General switching specifications....................35
7.5 Thermal specifications............................................... 36
7.5.1 Thermal operating requirements....................36
7.5.2 Thermal attributes..........................................36
7.6 Peripheral operating requirements and behaviors.....37
7.6.1 Core modules.................................................37
7.6.2 System modules............................................ 40
7.6.3 Clock modules............................................... 40
7.6.4 Memories and memory interfaces..................45
7.6.5 Security and integrity modules.......................49
7.6.6 Analog............................................................50
7.6.7 Timers............................................................57
7.6.8 Communication interfaces............................. 57
8 Transceiver Electrical Characteristics................................. 66
8.1 DC electrical characteristics.......................................66
8.2 AC electrical characteristics.......................................67
8.3 SPI timing: R_SSEL_B to R_SCLK........................... 68
8.4 SPI timing: R_SCLK to R_MOSI and R_MISO..........69
9 Crystal oscillator reference frequency.................................69
9.1 Crystal oscillator design considerations.....................69
9.2 Crystal requirements..................................................69
10 Pin diagrams and pin assignments..................................... 71
10.1 MKW21D256/MKW21D512 Pin Assignment............. 71
10.2 MKW22/24D512V Pin Assignment............................ 72
10.3 Pin assignments.........................................................72
11 Dimensions..........................................................................76
11.1 Obtaining package dimensions..................................76
12 Revision History.................................................................. 77
MKW2xD Data Sheet, Rev. 2, 05/2016 3
NXP Semiconductors