MKL33Z256VLH4557 - Kinetis KL33 256KB Cortex-M0+ MCU | NXP
MPN: MKL33Z256VLH4557 ✓ Hoạt độngMKL33Z256VLH4557 Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, peripherals, and I/O. The Kinetis L family positions low-power ARM Cortex-M0+ cores below Cortex-M3/M7 high-performance families and above simple 8-bit MCUs, balancing energy efficiency, code density (Thumb-2 instruction set), and broad peripheral integration. Segment LCD controllers directly drive glass displays without external charge-pump circuitry, which is why the KL33 sub-family targets metering, appliance, and battery-powered HMI designs.
Key features of the MKL33Z256VLH4 silicon include 256 KB program Flash, up to 32 KB SRAM (varies by configuration), an ultra-low-power Run mode of roughly 50 uA/MHz, six flexible low-power modes (VLPR, VLLS0-3, STOP, LLS), an integrated segment LCD driver supporting up to 8x36 or 4x40 segments, a 12-bit SAR ADC with hardware trigger, multiple UART/SPI/I2C peripherals, a low-power timer and real-time clock, and a wide operating voltage range suitable for 1.8-3.6 V battery systems. The LQFP-64 package provides a 1.4 mm body thickness and standard 0.5 mm lead pitch for hand-reworkable prototypes.
Architecturally, the KL33 uses a Cortex-M0+ core with single-cycle 32x32 multiplier, NVIC for 32 interrupts, and Micro Trace Buffer for lightweight instruction tracing. The integrated low-power segment LCD driver with charge pump operates in VLLS0 deep-sleep modes where the CPU is OFF, enabling always-on glass displays at very low quiescent current. DMA supports peripheral-to-memory transfers without CPU wake-up, a key enabler for battery-life claims.
Typical applications include smart electricity/gas/water meters, medical devices such as glucometers and portable monitors, home appliances with LCD displays, IoT sensor platforms, and industrial sensor controllers. The segment LCD integration is the primary differentiator against general-purpose Cortex-M0+ MCUs.
When designing with this part, prioritize low-power firmware to leverage the six low-power modes. Place the MCU on a continuous ground pour and route the segment LCD traces first to avoid parallel switching noise coupling into analog inputs. Use the on-chip 1 kHz LPO for the RTC when the main oscillator is gated to extend battery life.
This page synthesizes distributor pricing, Kinetis family cross-reference alternatives, and low-power design notes not found in the standalone NXP datasheet, providing an engineer-ready summary for sourcing and substitution decisions.
Bộ thay thế dễ dàng lắp đặt cho MKL33Z256VLH4557 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MKL33Z256VLH4557 (cùng hình factor và footprint) — khác nhau ở ADC, Operating Temperature Range, Package, Series.
MKL33Z256VLL4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MKL33Z128VLH4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MKL34Z256VLH4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MKL02Z16VFG4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L053R8T6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MKL33Z256VLH4557 Tỷ lệ tối đa & tính chất điện
| Series | Kinetis KL33 |
| Core | ARM Cortex-M0+ |
| Tần số xung maksimum | 48 MHz |
| Program Flash Memory | 256 KB |
| Khoảng nhiệt độ hoạt động | -40 C to +105 C |
| Hộp | LQFP-64 (10x10 mm, 0.5 mm pitch) |
| Segment LCD Controller | Integrated (up to 8x36 / 4x40 segments) |
| Kiểu lắp đặt | Surface Mount |
| Peripherals | UART, SPI, I2C, ADC, LCD, LPTMR, RTC, DMA |
| ADC | 12-bit SAR |
| Low-Power Modes | VLPR, STOP, VLLS0-3, LLS |
| Trạng thái RoHS | Compliant |
Cấu hình chân MKL33Z256VLH4557
| Chân 1 | PTE0 — General purpose I/O / segment LCD |
| Chân 2 | PTE1 — General purpose I/O / segment LCD |
| Chân 3 | PTE2 — General purpose I/O / segment LCD |
| Chân 4 | PTE3 — General purpose I/O / segment LCD |
| Chân 5 | VDD — Power supply |
| Chân 6 | VSS — Ground |
| Chân 7 | PTE16 — General purpose I/O / segment LCD |
| Chân 8 | PTE17 — General purpose I/O / segment LCD |
| Chân 9 | PTE18 — General purpose I/O / segment LCD |
| Chân 10 | PTE19 — General purpose I/O / segment LCD |
| Chân 11 | PTE20 — General purpose I/O / segment LCD |
| Chân 12 | PTE21 — General purpose I/O / segment LCD |
| Chân 13 | PTE22 — General purpose I/O / segment LCD |
| Chân 14 | PTE23 — General purpose I/O / segment LCD |
| Chân 15 | VDDA — Analog power supply |
| Chân 16 | VREFH — ADC voltage reference high |
| Chân 17 | VREFL — ADC voltage reference low |
| Chân 18 | VSSA — Analog ground |
| Chân 19 | PTE29 — General purpose I/O / segment LCD |
| Chân 20 | PTE30 — General purpose I/O / segment LCD |
| Chân 21 | PTE31 — General purpose I/O / segment LCD |
| Chân 22 | PTD0 — General purpose I/O / segment LCD |
| Chân 23 | PTD1 — General purpose I/O / segment LCD |
| Chân 24 | PTD2 — General purpose I/O / segment LCD |
| Chân 25 | PTD3 — General purpose I/O / segment LCD |
| Chân 26 | PTD4 — General purpose I/O / segment LCD |
| Chân 27 | PTD5 — General purpose I/O / segment LCD |
| Chân 28 | PTC0 — General purpose I/O / segment LCD |
| Chân 29 | PTC1 — General purpose I/O / segment LCD |
| Chân 30 | PTC2 — General purpose I/O / segment LCD |
| Chân 31 | PTC3 — General purpose I/O / segment LCD |
| Chân 32 | PTC4 — General purpose I/O / segment LCD |
| Chân 33 | PTC5 — General purpose I/O / segment LCD |
| Chân 34 | PTC6 — General purpose I/O / segment LCD |
| Chân 35 | PTC7 — General purpose I/O / segment LCD |
| Chân 36 | PTC8 — General purpose I/O / segment LCD |
| Chân 37 | PTC9 — General purpose I/O / segment LCD |
| Chân 38 | PTC10 — General purpose I/O / segment LCD |
| Chân 39 | PTC11 — General purpose I/O / segment LCD |
| Chân 40 | PTC12 — General purpose I/O / segment LCD |
| Chân 41 | PTC13 — General purpose I/O / segment LCD |
| Chân 42 | PTC14 — General purpose I/O / segment LCD |
| Chân 43 | PTC15 — General purpose I/O / segment LCD |
| Chân 44 | PTC16 — General purpose I/O / segment LCD |
| Chân 45 | PTC17 — General purpose I/O / segment LCD |
| Chân 46 | PTB0 — General purpose I/O / segment LCD |
| Chân 47 | PTB1 — General purpose I/O / segment LCD |
| Chân 48 | PTB2 — General purpose I/O / segment LCD |
| Chân 49 | PTB3 — General purpose I/O / segment LCD |
| Chân 50 | PTB4 — General purpose I/O / segment LCD |
| Chân 51 | PTB5 — General purpose I/O / segment LCD |
| Chân 52 | PTB6 — General purpose I/O / segment LCD |
| Chân 53 | PTB7 — General purpose I/O / segment LCD |
| Chân 54 | PTA0 — General purpose I/O / segment LCD |
| Chân 55 | PTA1 — General purpose I/O / segment LCD |
| Chân 56 | PTA2 — General purpose I/O / segment LCD |
| Chân 57 | PTA3 — General purpose I/O / segment LCD |
| Chân 58 | PTA4 — General purpose I/O / segment LCD |
| Chân 59 | PTA5 — General purpose I/O / segment LCD |
| Chân 60 | VDD — Power supply |
| Chân 61 | VSS — Ground |
| Chân 62 | RESET_b — Reset input, active-low |
| Chân 63 | SWDIO — Serial Wire Debug data |
| Chân 64 | SWDCLK — Serial Wire Debug clock |
Ứng dụng tiêu biểu
MKL33Z256VLH4557 phù hợp cho 6 Áp dụngs: Smart Electricity Meter with LCD, Portable Medical Glucose Meter, Home Appliance HMI with LCD Display, IoT Sensor Node with LCD, Industrial Sensor / Process Controller, Automotive Aftermarket Display Module.
Smart Electricity Meter with LCD
The MKL33Z256VLH4557's integrated segment LCD controller drives 8x36 or 4x40 glass segments directly, eliminating the external LCD driver IC, charge pump, and bias resistors that a generic MCU would require. The Cortex-M0+ core at 48 MHz handles metrology math (RMS, power factor, energy accumulation) while the LCD runs from VLLS0 deep-sleep at sub-microamp quiescent current, preserving coin-cell or lithium battery life across the 10-15 year service target. The 256 KB Flash stores tariff tables, calibration constants, and metering logs. NXP's Kinetis L power benchmarks confirm this part as the canonical Kinetis KL33 metering MCU.
Được đề xuất
Portable Medical Glucose Meter
The MKL33Z256VLH4557 fits portable blood-glucose meters because the segment LCD driver presents the glucose readout without an external display driver IC, while the ultra-low-power Run mode of ~50 uA/MHz keeps coin-cell operating life well past the 1000-strip target. The 12-bit SAR ADC reads the electrochemical strip with hardware trigger from the LPTMR, and DMA offloads the A/D stream so the Cortex-M0+ can wake briefly per measurement, drawing single-digit uA average. The LQFP-64 footprint is hand-reworkable for low-volume medical manufacturing.
Được đề xuất
Home Appliance HMI with LCD Display
Washing machines, ovens, and induction-cook controllers use the MKL33Z256VLH4557 for the segment LCD user panel because the integrated LCD controller and 256 KB Flash accommodate multilingual menu strings and status icons. The multiple UART/SPI/I2C peripherals connect to the main appliance controller board, while the six low-power modes support display-only standby at <1 mA quiescent - perfect for an appliance that is plugged in but inactive. The LQFP-64 footprint is industry-standard for white-goods PCBA assembly lines.
Được đề xuất
IoT Sensor Node with LCD
The MKL33Z256VLH4557 is ideal for battery-powered IoT sensor nodes that display readings on a local segment LCD (room thermostats, weather stations, leak detectors). The Cortex-M0+ core handles the sensor acquisition and LoRa/Wi-Fi companion-IC handshake via UART/SPI, while the segment LCD shows real-time readings in VLLS0 deep-sleep with CPU off, achieving years of coin-cell life. The 256 KB Flash supports over-the-air firmware updates via dual-bank Flash, and the wide 1.8-3.6 V operating voltage matches 2xAA / 1x lithium-coin power rails.
Được đề xuất
Industrial Sensor / Process Controller
Factory-floor sensors and process controllers use the MKL33Z256VLH4557 where an industrial-grade -40 C to +105 C operating range and integrated segment LCD allow a single chip to read a 4-20 mA analog signal and display measured values on a local glass display. The 12-bit SAR ADC handles transducer linearization, while the segment LCD shows process variables without a remote HMI panel. RS-485 / UART communication enables integration with PLC networks. The LQFP-64 package is compatible with hand-solder and wave-solder industrial PCBA lines.
Được đề xuất
Automotive Aftermarket Display Module
Aftermarket automotive display modules (e.g., car diagnostic tools, OBD-II readers, tire-pressure LCDs) leverage the MKL33Z256VLH4557's segment LCD driver and wide operating temperature range. The part is not AEC-Q100 qualified for OEM automotive, so it serves the aftermarket / non-safety segment where cost is paramount. The 256 KB Flash stores lookup tables, and the multiple low-power modes keep 12 V automotive power-net idle draw well below OEM standby budgets. Designers who need AEC-Q100 should move to the NXP S32K1 family instead.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MKL33Z256VLH4557 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MKL33Z256VLL4 | MKL33Z128VLH4 | MKL34Z256VLH4 | MKL02Z16VFG4 | STM32L053R8 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | STMicroelectronics |
| Package | LQFP-64 (10x10 mm) | LQFP-100 - NOT same footprint, requires PCB rework | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 - same footprint, different pinout |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 32 MHz |
| Program Flash | 256 KB | 256 KB | 128 KB | 256 KB | 16 KB | 64 KB |
| Segment LCD Controller | Yes (8x36 / 4x40) | Yes | Yes | Yes | No | Yes |
| USB Peripheral | No | No | No | Yes (USB-FS) | No | No |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Integrated segment LCD controller with deep-sleep charge pump (vsMKL02Z16VFG4)
- Pin-to-pin LQFP-64 family scalability (vsMKL33Z128VLH4)
- Single-vendor silicon roadmap with NXP longevity (vsSTM32L053R8)
Ghi chú thiết kế
Estimated: At 48 MHz Run mode, the MKL33Z256VLH4557 draws approximately 50 uA/MHz from VDD = 3.0 V per NXP Kinetis L power data, so a typical sensor-pole firmware loop running 10% duty cycle at 3.0 V averages ~240 uA. Selecting VLLS0 deep-sleep with segment LCD wake-up reduces quiescent current to single-digit uA, enabling multi-year coin-cell life in metering and IoT applications. Always place a 1 uF X7R bulk capacitor close to each VDD/VSS pair (pins 5/6, 60/61) to suppress instantaneous current spikes during GPIO switching.
Route the segment LCD segment/com traces first on the top layer with wide, parallel traces, keeping them clear of analog inputs and high-frequency digital lines to avoid capacitive coupling that shows as ghosted LCD segments. Place a continuous ground pour under the LQFP-64 thermal pad to provide a stable return path for the LCD charge pump. Use 4-layer PCB stack-up with dedicated VDD and VSS planes where the design targets <5 mV ripple on analog ADC inputs. The 0.5 mm pitch LQFP-64 is hand-reworkable but requires careful inspection under stereomicroscope.
Do not assume that the MKL33Z256VLH4557 supports USB - it does not. The MKL34Z variant is required for USB-FS peripheral. Engineers migrating from Kinetis K-series must verify the SWD pinout because SWDIO/SWDCLK on KL33 are on dedicated pins (63/64) and remapping is not supported. Avoid leaving unused segment LCD pins floating; tie them to defined logic levels via software mux to prevent phantom LCD segments. The MKL33Z256VLL4 'package alternative' is LQFP-100 and will NOT fit the LQFP-64 PCB footprint - this is a common sourcing mistake.
Thông tin tuân thủ
RoHS and lead-free confirmed by NXP product page (https://www.nxp.com/part/MKL33Z256VLH4). Not AEC-Q100 qualified - for automotive OEM use choose NXP S32K1 family or other qualified MCUs.
