Overview
The MKM34Z256VLL7R is a 32-bit microcontroller from NXP USA Inc., part of the Kinetis KM34 family. This MCU is designed for precision measurement applications, including single-chip solutions for one-, two-, and three-phase electricity meters, as well as flow meters. It features a 75 MHz Arm Cortex-M0+ core, making it suitable for a variety of industrial and consumer applications that require high accuracy and low power consumption.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Core and Clock Speed | 75 MHz core and system clock, 25 MHz bus clock, 25 MHz flash clock | MCG configured for FBE mode |
| Flash Memory | 256 KB program flash memory | |
| SRAM | 32 KB SRAM | |
| Voltage Range | 1.71 to 3.6 V (without AFE), 2.7 to 3.6 V (with AFE) | |
| Temperature Range | –40 to 105 °C | Ambient temperature range |
| Package | 100-LQFP, 14 mm × 14 mm Pitch 0.5 mm | |
| Analog Modules | 4 AFE channels (4× 24-bit ΣΔ ADCs with PGA), 16-channel 16-bit SAR ADC, High-speed analog comparator | |
| Communication Interfaces | 16-bit SPI modules, Low-power UART module, I2C with SMBus | |
| Timers | Quad Timer (QTMR), Periodic Interrupt Timer (PIT), Low Power Timer (LPTMR), Programmable Delay Block (PDB) | |
| Power Modes | 13 power modes, including very low power run and deep sleep modes |
Key Features
- High-Performance Core: 75 MHz Arm Cortex-M0+ core for efficient processing.
- Analog Modules: Includes 4 AFE channels with 24-bit ΣΔ ADCs and PGA, 16-channel 16-bit SAR ADC, and a high-speed analog comparator.
- Low Power Consumption: Offers 13 power modes, including very low power run and deep sleep modes, with currents as low as 220 nA in deep sleep.
- Communication Interfaces: Supports 16-bit SPI modules, low-power UART, and I2C with SMBus.
- Security and Integrity: Features Memory Mapped Cryptographic Acceleration Unit (MMCAU) for AES encryption, Random Number Generator (RNGA), and Programmable Cyclic Redundancy Check (PCRC).
- Human-Machine Interface: Up to 4×60 segment LCD controller operating in all low-power modes).
Applications
- Precision Measurement: Ideal for single-chip solutions in one-, two-, and three-phase electricity meters, as well as flow meters.
- Industrial Automation: Suitable for various industrial applications requiring high accuracy and low power consumption.
- Consumer Electronics: Can be used in consumer devices that need precise measurement and control.
- Smart Metering: Designed for smart metering applications, including energy and water meters.
Q & A
- What is the core speed of the MKM34Z256VLL7R MCU?
The core speed is 75 MHz.
- How much flash memory does the MKM34Z256VLL7R have?
It has 256 KB of program flash memory.
- What is the voltage range for the MKM34Z256VLL7R?
The voltage range is 1.71 to 3.6 V (without AFE) and 2.7 to 3.6 V (with AFE).
- What types of analog modules are included in the MKM34Z256VLL7R?
It includes 4 AFE channels with 24-bit ΣΔ ADCs and PGA, 16-channel 16-bit SAR ADC, and a high-speed analog comparator.
- What communication interfaces are supported by the MKM34Z256VLL7R?
It supports 16-bit SPI modules, low-power UART, and I2C with SMBus.
- What are the power consumption characteristics of the MKM34Z256VLL7R?
It offers 13 power modes, including very low power run and deep sleep modes, with currents as low as 220 nA in deep sleep.
- Does the MKM34Z256VLL7R have any security features?
Yes, it includes a Memory Mapped Cryptographic Acceleration Unit (MMCAU) for AES encryption, Random Number Generator (RNGA), and Programmable Cyclic Redundancy Check (PCRC).
- What kind of human-machine interface does the MKM34Z256VLL7R support?
It supports up to 4×60 segment LCD controller operating in all low-power modes.
- What is the package type and size of the MKM34Z256VLL7R?
The package is a 100-LQFP, 14 mm × 14 mm with a pitch of 0.5 mm.
- What are some typical applications for the MKM34Z256VLL7R?
It is ideal for precision measurement applications, including single-chip solutions in one-, two-, and three-phase electricity meters, as well as flow meters, and other industrial and consumer electronics.
