MKL04Z32VLF4 - 48MHz Cortex-M0+ 32KB Flash MCU | NXP | LQFP-48
MPN: MKL04Z32VLF4 ✓ Hoạt độngMKL04Z32VLF4 Tóm tắt
What is a Kinetis L microcontroller? The Kinetis L family is NXP's ultra-low-power ARM Cortex-M0+ MCU portfolio, positioned below the Cortex-M4-based Kinetis K series. It targets battery-powered and energy-harvesting products where every microamp of quiescent current matters. Within the L series, the KL0x sub-family is the smallest and lowest-cost entry, while KL1x/2x/4x add richer peripherals and higher memory. Architecturally, an ARM Cortex-M0+ core sits on an advanced bus matrix with low-power peripherals and a flexible low-leakage wake-up unit, making the Kinetis L a power management IC companion in any embedded system.
Key features include 32 KB program Flash, 4 KB SRAM, an 8-channel 12-bit SAR ADC, two analog comparators, a low-power hardware touch-sensing interface (TSI), up to 41 general-purpose I/O pins, and multiple serial peripherals including UART, SPI, and I2C. The device supports operating voltages from 1.71 V to 3.6 V and offers several low-power modes (Wait, Stop, VLPR, VLPS) that draw single-digit microamp currents, enabling years of battery life on coin-cell powered designs. The Cortex-M0+ core delivers 0.95 DMIPS/MHz with a two-stage pipeline and Thumb-2 instruction set compatibility.
Typical applications include wearable fitness bands, remote controls, wireless sensor node endpoints, electronic shelf labels, smart-meter peripherals, low-end Bluetooth/BLE beacons, and consumer toys. The wide memory map and Kinetis peripheral compatibility also make the KL04 suitable as a co-processor or I/O expander in larger designs. Industrial and home appliance sub-modules (HMI buttons, motor control via PWM) are additional use cases.
When designing with the MKL04Z32VLF4, ensure the decoupling network follows NXP's Kinetis L reference design: a 0.1 uF ceramic capacitor close to each VDD pin plus a bulk 4.7 uF capacitor. The LQFP-48 package has an exposed pad (pin 49/die pad) that must be soldered to the ground plane for thermal and electrical performance. The internal 1.2 V core regulator requires a 2.2 uF capacitor on VDCDC to operate correctly.
Bộ thay thế dễ dàng lắp đặt cho MKL04Z32VLF4 — 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 MKL04Z32VLF4 (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, SRAM, Series, Flash Memory.
MKL05Z32VLF4
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MKL04Z16VLF4
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MKL04Z32VFK4
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MKL04Z32VLF4 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M0+ |
| Core Architecture | 32-bit ARM Thumb-2 |
| Maximum CPU Frequency | 48 MHz |
| Performance | 0.95 DMIPS/MHz |
| Program Flash | 32 KB |
| SRAM | 4 KB |
| Operating Voltage | 1.71 V to 3.6 V |
| ADC | 12-bit SAR, 8-channel |
| Analog Comparators | 2 |
| Touch-Sensing Interface (TSI) | Yes (hardware low-power) |
| GPIO | Up to 41 |
| Serial Peripherals | UART, SPI, I2C |
| Low-Power Modes | Wait, Stop, VLPR, VLPS |
| Hộp | 48-LQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Nhiệt độ hoạt động | -40C to +105C |
| Sub-Family | Kinetis KL0x |
Cấu hình chân MKL04Z32VLF4
| Chân 1 | PTA0/TSI0_CH1 — GPIO PTA0 / TSI channel 1 |
| Chân 2 | PTA1/TSI0_CH2 — GPIO PTA1 / TSI channel 2 |
| Chân 3 | PTA2 — GPIO PTA2 |
| Chân 4 | PTA3 — GPIO PTA3 |
| Chân 5 | PTA4 — GPIO PTA4 |
| Chân 6 | PTA5 — GPIO PTA5 |
| Chân 7 | VDD — Supply voltage (1.71 V to 3.6 V) |
| Chân 8 | VSS — Ground |
| Chân 9 | PTA6 — GPIO PTA6 |
| Chân 10 | PTA7 — GPIO PTA7 |
| Chân 11 | PTB0 — GPIO PTB0 |
| Chân 12 | PTB1 — GPIO PTB1 |
| Chân 13 | PTB2 — GPIO PTB2 |
| Chân 14 | PTB3 — GPIO PTB3 |
| Chân 15 | PTB4 — GPIO PTB4 |
| Chân 16 | PTB5 — GPIO PTB5 |
| Chân 17 | PTC0 — GPIO PTC0 |
| Chân 18 | PTC1 — GPIO PTC1 |
| Chân 19 | PTC2 — GPIO PTC2 |
| Chân 20 | PTC3 — GPIO PTC3 |
| Chân 21 | PTC4 — GPIO PTC4 |
| Chân 22 | PTC5 — GPIO PTC5 |
| Chân 23 | PTC6 — GPIO PTC6 |
| Chân 24 | PTC7 — GPIO PTC7 |
| Chân 25 | PTD0 — GPIO PTD0 |
| Chân 26 | PTD1 — GPIO PTD1 |
| Chân 27 | PTD2 — GPIO PTD2 |
| Chân 28 | PTD3 — GPIO PTD3 |
| Chân 29 | PTD4 — GPIO PTD4 |
| Chân 30 | PTD5 — GPIO PTD5 |
| Chân 31 | PTD6 — GPIO PTD6 |
| Chân 32 | PTD7 — GPIO PTD7 |
| Chân 33 | PTE0 — GPIO PTE0 |
| Chân 34 | PTE1 — GPIO PTE1 |
| Chân 35 | VSS — Ground |
| Chân 36 | VDD — Supply voltage (1.71 V to 3.6 V) |
| Chân 37 | PTE16 — GPIO PTE16 |
| Chân 38 | PTE17 — GPIO PTE17 |
| Chân 39 | PTE18 — GPIO PTE18 |
| Chân 40 | PTE19 — GPIO PTE19 |
| Chân 41 | PTE20 — GPIO PTE20 |
| Chân 42 | PTE21 — GPIO PTE21 |
| Chân 43 | PTE22 — GPIO PTE22 |
| Chân 44 | PTE23 — GPIO PTE23 |
| Chân 45 | RESET_b — Active-low reset input |
| Chân 46 | EXTAL — External clock/oscillator input |
| Chân 47 | XTAL — External crystal oscillator output |
| Chân 48 | VSS — Ground |
Ứng dụng tiêu biểu
MKL04Z32VLF4 phù hợp cho 6 Áp dụngs: Wearable Fitness Bands, Remote Controls (IR/RF), Wireless Sensor Node Endpoints, Electronic Shelf Labels (ESL), Smart Meter Peripherals, Consumer Toys and Educational Devices.
Wearable Fitness Bands
The MKL04Z32VLF4's 48 MHz Cortex-M0+ core, 32 KB Flash, and 4 KB SRAM cover the BLE SoC companion MCU role in wearable fitness bands. Its hardware touch-sensing interface (TSI) eliminates the need for an external touch IC for capacitive buttons and swipe gestures on the wristband. Multiple low-power modes (Stop at single-digit uA, VLPS below 1 uA) let the band last months on a coin cell when the main SoC sleeps. The 41 GPIOs on LQFP-48 also drive an OLED display and a heart-rate sensor I2C bus.
Được đề xuất
Remote Controls (IR/RF)
Low-cost IR and RF remote controls are a classic fit for the MKL04Z32VLF4. The Cortex-M0+ core handles key-scan matrix, IR carrier generation via PWM, and a simple RF transmitter protocol at 48 MHz with plenty of headroom. 32 KB Flash holds lookup tables for multiple device codes (TV, STB, audio), and the 1.71-3.6 V supply runs directly from two AAA cells. Stop-mode current below 1 uA extends battery life beyond a year of standby. The 41 GPIOs support full 7x7 key matrices without an external scan IC.
Được đề xuất
Wireless Sensor Node Endpoints
In ZigBee, Thread, or sub-GHz wireless sensor networks the MKL04Z32VLF4 acts as the application MCU paired with a radio transceiver. The UART/SPI/I2C set connects to a typical sub-GHz radio or BLE SoC, while the 12-bit ADC reads battery voltage and analog sensor inputs. The internal low-leakage wake-up unit and Stop-mode current below 5 uA make 10-year battery life on a 2400 mAh lithium cell feasible for metering endpoints. Hardware TSI also supports tamper buttons on smart-meter peripherals.
Được đề xuất
Electronic Shelf Labels (ESL)
Electronic shelf labels need a tiny, cheap MCU that sleeps most of the time and wakes on a wireless command. The MKL04Z32VLF4 in LQFP-48 fits ESL gateways and multi-cell ESL sub-controllers that drive a small display refresh circuit. Wide 1.71-3.6 V supply runs directly from CR2032 cells with a boost converter. The 8-channel 12-bit ADC monitors battery health, and Stop-mode current near 1 uA extends shelf life beyond 5 years. UART/SPI provides the link to a sub-GHz or 2.4 GHz ESL radio.
Được đề xuất
Smart Meter Peripherals
The MKL04Z32VLF4 fits as an auxiliary MCU inside smart-meter enclosures, handling local HMI buttons, tamper detection, and segmented indicator LEDs. Its low-leakage wake-up unit and Stop/VLPS modes keep idle current negligible even when the main metering SoC is active. The hardware touch-sensing interface adds capacitive front-panel buttons without extra components. Industrial temperature grade (-40C to +105C) covers outdoor meter cabinets. Up to 41 GPIOs also support segmented LED indicators via external drivers.
Được đề xuất
Consumer Toys and Educational Devices
Low-cost STEM toys, programmable badges, and educational controllers use the MKL04Z32VLF4 as the main MCU. Its 48 MHz Cortex-M0+ core, 32 KB Flash, and 4 KB SRAM run simple scripting engines, motor-control PWM loops, and BLE pairing via a paired radio. The hardware TSI enables touch pads without extra ICs, while the 12-bit ADC reads battery voltage and analog sensors. Wide 1.71-3.6 V supply supports direct Li-ion or 2xAA operation with an internal DC-DC, simplifying the BOM.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MKL04Z32VLF4 — 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 | MKL05Z32VLF4 | MKL04Z16VLF4 | MKL04Z32VFK4 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-48 (7x7 mm) | LQFP-48 (7x7 mm) | LQFP-48 (7x7 mm) | QFN-32 (FK) |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Program Flash | 32 KB | 32 KB | 16 KB (-50%) | 32 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB |
| GPIO Count (max) | 41 | 41 | 41 | 27 |
| Segment LCD Driver | No | Yes | No | No |
| Hardware Touch-Sensing (TSI) | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Lowest-cost entry into the Kinetis L family in LQFP-48 (vsMKL05Z32VLF4)
- Highest pin-count Kinetis L option in the 32 KB Flash tier (vsMKL04Z32VFK4 (QFN-32))
- Hardware touch-sensing interface included on-chip (vsGeneric Cortex-M0+ MCUs without TSI)
Ghi chú thiết kế
Decouple every VDD pin with a 0.1 uF X7R ceramic capacitor placed within 3 mm of the pin, plus a single 4.7 uF bulk capacitor on the supply rail. The internal DC-DC converter requires a 2.2 uF low-ESR capacitor on the VDCDC pin for stable 1.2 V core regulation. Failing to populate this cap will cause brownouts and erratic peripheral behavior.
Estimated: in LQFP-48 the theta_JA is approximately 65 C/W on a 1-oz 4-layer JEDEC test board. At full 48 MHz with all peripherals active, the MKL04Z32VLF4 draws < 10 mA, so self-heating is negligible (< 1 C rise) under normal conditions. Industrial (-40C to +105C) designs should still verify thermal behavior in a sealed enclosure.
Keep the EXTAL/XTAL crystal traces short (< 5 mm) and surrounded by ground pour to minimize EMI pickup. Route analog ADC traces away from digital switching signals, and add a ground guard ring around sensitive analog pins. The exposed pad on the LQFP-48 (pin 49 / die pad) must be soldered to a continuous ground plane for thermal and electrical performance.
Do not exceed 3.6 V on VDD - even brief transients above the abs-max rating can permanently damage the part. Always configure the watchdog and clock-lost reset in software before enabling Stop mode to avoid lockups. The TSI pins are shared with GPIO; do not enable TSI on a pin that is also used as an analog comparator input.
Thông tin tuân thủ
RoHS compliant and lead-free per NXP product page. Not AEC-Q100 qualified - choose a KEA or S32K part for automotive. REACH and conflict-mineral declarations published by NXP for the Kinetis L family.