Arm® Cortex®-M0+|Kinetis® KM3x 50-75 MHz 32-bit MCUs

Arm® Cortex®-M0+|Kinetis® KM3x 50-75 MHz 32-bit MCUs | NXP Semiconductors

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The KM3x MCU family enables single-chip one-, two- and three-phase electricity meters, as well as flow meters and other precision measurement applications. This family of MCUs:

Provides security with active and passive tamper detection with time stamping
Supports high-precision internal voltage reference with low temperature drift
Features a comprehensive enablement suite including reference designs

Data Sheet

Reference Manual

Product Details

Block Diagram

KM3x MCU Family

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Features

General Features

High-performance Arm^{^®} Cortex^®-M0 core, up to 75 MHz of core clock frequency
512 KB/256 KB/64 KB single array flash
Supports v6-M Instruction Set Architecture (ISA) including all 16-bit v7-M instructions plus a number of 32-bit thumb-2 instructions
PLL to generate clocks for AFE
- Input range: 31.25 kHz to 39.0625 kHz
- Output range: 11.72 MHz to 14.65 MHz
FLL to generate core, system and flash clocks
- Input range: 31.25 kHz to 39.0625 kHz
- Output Range: 20 MHz to 50 MHz
Flexible modes of operation
Two internal trimmable clock references
- 32 kHz
- 4 MHz

Analog Front End

24-bit sigma delta ADC with 94 dB SNR
Programmable gain amplifier with gains from 1 to 32 with low temperature drift
High precision internal voltage reference with low temperature drift

Security

Tamper detection with time stamping
Random number generator, memory protection unit
Memory Mapped Cryptographic Acceleration Unit (MMCAU) for AES Encryption
Cyclic Redundancy Check (CRC)

Interfaces

Voltage range 1.71 volts - 3.6 volts (without AFE)
Voltage range 2.7 volts - 3.6 volts (with AFE)
Temperature range -40°C to 105°C

Buy/Parametrics

Part Show description	Status	Budgetary Price excluding tax	Core Type	Operating Frequency [Max] (MHz)	Flash (kB)	SRAM (kB)	Serial Communication	CAN	USB Controllers	Human Machine Interface	Security	Timers [Number, bits]	PWM [Number, bits]	ADC [Number, bits]	DAC [Number, bits]	GPIO	Supply Voltage [Min to Max] (V)	Ambient Operating Temperature (Min to Max) (℃)	Package Type	Package Pitch (mm)
MKM33Z128ACLH5 Data Sheet	Active	10K @ US$2.50	Arm Cortex-M0+	50	128	16	2 x I²C, 2 x SPI, 4 x UART	0	0	segment LCD	CRC, RNG	1 x 16	4 x 16	1 x 16	2 x 6	38	1.71 to 3.6	-40 to 85	LQFP64	0.5
MKM33Z128ACLL5 Data Sheet	Active	10K @ US$2.62	Arm Cortex-M0+	50	128	16	2 x I²C, 2 x SPI, 4 x UART	0	0	segment LCD	CRC, RNG	1 x 16	4 x 16	1 x 16	2 x 6	68	1.71 to 3.6	-40 to 85	LQFP100	0.5
MKM33Z64ACLH5 Data Sheet	Active	10K @ US$2.19	Arm Cortex-M0+	50	64	16	2 x I²C, 2 x SPI, 4 x UART	0	0	segment LCD	CRC, RNG	1 x 16	4 x 16	1 x 16	2 x 6	38	1.71 to 3.6	-40 to 85	LQFP64	0.5
MKM33Z64ACLL5 Data Sheet	Active	10K @ US$2.33	Arm Cortex-M0+	50	64	16	2 x I²C, 2 x SPI, 4 x UART	0	0	segment LCD	CRC, RNG	1 x 16	4 x 16	1 x 16	2 x 6	68	1.71 to 3.6	-40 to 85	LQFP100	0.5
MKM34Z128ACLL5 Data Sheet	Active	10K @ US$2.81	Arm Cortex-M0+	50	128	16	2 x I²C, 2 x SPI, 4 x UART	0	0	segment LCD	CRC, RNG	1 x 16	4 x 16	1 x 16	2 x 6	68	1.71 to 3.6	-40 to 85	LQFP100	0.5
MKM34Z256VLL7 Data Sheet	Active	10K @ US$3.21	Arm Cortex-M0+	75	256	32	2 x I²C, 2 x SPI, 5 x UART	—	—	segment LCD	CRC, MMCAU, RNG	4 x 32, 6 x 16	4 x 16	1 x 16, 4 x 24	3 x 6	72	1.71 to 3.6	-40 to 105	LQFP100	0.5
MKM34Z256VLQ7 Data Sheet	Active	10K @ US$3.59	Arm Cortex-M0+	75	256	32	2 x I²C, 2 x SPI, 5 x UART	—	—	segment LCD	CRC, MMCAU, RNG	4 x 32, 6 x 16	4 x 16	1 x 16, 4 x 24	3 x 6	99	1.71 to 3.6	-40 to 105	LQFP144	0.5
MKM35Z256VLL7 Data Sheet	Active	10K @ US$3.53	Arm Cortex-M0+	75	256	64	2 x I²C, 3 x SPI, 5 x UART	—	—	segment LCD	CRC, MMCAU, RNG	4 x 32, 6 x 16	4 x 16	1 x 16, 4 x 24	3 x 6	72	1.71 to 3.6	-40 to 105	LQFP100	0.5
MKM35Z256VLQ7 Data Sheet	Active	10K @ US$3.94	Arm Cortex-M0+	75	256	64	2 x I²C, 3 x SPI, 5 x UART	—	—	segment LCD	CRC, MMCAU, RNG	4 x 32, 6 x 16	4 x 16	1 x 16, 4 x 24	3 x 6	99	1.71 to 3.6	-40 to 105	LQFP144	0.5
MKM35Z512VLL7 Data Sheet	Active	10K @ US$3.88	Arm Cortex-M0+	75	512	64	2 x I²C, 3 x SPI, 5 x UART	—	—	segment LCD	CRC, MMCAU, RNG	4 x 32, 6 x 16	4 x 16	1 x 16, 4 x 24	3 x 6	72	1.71 to 3.6	-40 to 105	LQFP100	0.5

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AN13338 Hardware files

ZIPRev 0Nov 25, 2021AN13338HW
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