MKL04Z32VLF4 - 48MHz Cortex-M0+ 32KB Flash MCU | NXP | LQFP-48
MPN： MKL04Z32VLF4 ✓ 啟用中MKL04Z32VLF4 概覽
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.
直接替換替代品，適用於 MKL04Z32VLF4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MKL04Z32VLF4 （相同外形與佔位） — 差異在於 Package, Core Architecture, SRAM, Series, Flash Memory.
MKL05Z32VLF4
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MKL04Z16VLF4
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MKL04Z32VFK4
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MKL04Z32VLF4 最大額定值與電氣特性
| 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 |
| 封裝 | 48-LQFP (7x7 mm) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| 工作溫度 | -40C to +105C |
| Sub-Family | Kinetis KL0x |
MKL04Z32VLF4 腳位配置
| 腳位 1 | PTA0/TSI0_CH1 — GPIO PTA0 / TSI channel 1 |
| 腳位 2 | PTA1/TSI0_CH2 — GPIO PTA1 / TSI channel 2 |
| 腳位 3 | PTA2 — GPIO PTA2 |
| 腳位 4 | PTA3 — GPIO PTA3 |
| 腳位 5 | PTA4 — GPIO PTA4 |
| 腳位 6 | PTA5 — GPIO PTA5 |
| 腳位 7 | VDD — Supply voltage (1.71 V to 3.6 V) |
| 腳位 8 | VSS — Ground |
| 腳位 9 | PTA6 — GPIO PTA6 |
| 腳位 10 | PTA7 — GPIO PTA7 |
| 腳位 11 | PTB0 — GPIO PTB0 |
| 腳位 12 | PTB1 — GPIO PTB1 |
| 腳位 13 | PTB2 — GPIO PTB2 |
| 腳位 14 | PTB3 — GPIO PTB3 |
| 腳位 15 | PTB4 — GPIO PTB4 |
| 腳位 16 | PTB5 — GPIO PTB5 |
| 腳位 17 | PTC0 — GPIO PTC0 |
| 腳位 18 | PTC1 — GPIO PTC1 |
| 腳位 19 | PTC2 — GPIO PTC2 |
| 腳位 20 | PTC3 — GPIO PTC3 |
| 腳位 21 | PTC4 — GPIO PTC4 |
| 腳位 22 | PTC5 — GPIO PTC5 |
| 腳位 23 | PTC6 — GPIO PTC6 |
| 腳位 24 | PTC7 — GPIO PTC7 |
| 腳位 25 | PTD0 — GPIO PTD0 |
| 腳位 26 | PTD1 — GPIO PTD1 |
| 腳位 27 | PTD2 — GPIO PTD2 |
| 腳位 28 | PTD3 — GPIO PTD3 |
| 腳位 29 | PTD4 — GPIO PTD4 |
| 腳位 30 | PTD5 — GPIO PTD5 |
| 腳位 31 | PTD6 — GPIO PTD6 |
| 腳位 32 | PTD7 — GPIO PTD7 |
| 腳位 33 | PTE0 — GPIO PTE0 |
| 腳位 34 | PTE1 — GPIO PTE1 |
| 腳位 35 | VSS — Ground |
| 腳位 36 | VDD — Supply voltage (1.71 V to 3.6 V) |
| 腳位 37 | PTE16 — GPIO PTE16 |
| 腳位 38 | PTE17 — GPIO PTE17 |
| 腳位 39 | PTE18 — GPIO PTE18 |
| 腳位 40 | PTE19 — GPIO PTE19 |
| 腳位 41 | PTE20 — GPIO PTE20 |
| 腳位 42 | PTE21 — GPIO PTE21 |
| 腳位 43 | PTE22 — GPIO PTE22 |
| 腳位 44 | PTE23 — GPIO PTE23 |
| 腳位 45 | RESET_b — Active-low reset input |
| 腳位 46 | EXTAL — External clock/oscillator input |
| 腳位 47 | XTAL — External crystal oscillator output |
| 腳位 48 | VSS — Ground |
典型應用
MKL04Z32VLF4 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 MKL04Z32VLF4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Lowest-cost entry into the Kinetis L family in LQFP-48 (對比MKL05Z32VLF4)
- Highest pin-count Kinetis L option in the 32 KB Flash tier (對比MKL04Z32VFK4 (QFN-32))
- Hardware touch-sensing interface included on-chip (對比Generic Cortex-M0+ MCUs without TSI)
設計說明
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.
合規資訊
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.