NXP Kinetis KL1 series MCU; ARM Cortex-M0+ at 48MHz; 128KB Flash / 32KB SRAM; 28 I/O, I²C / SPI / UART / LINbus; 1.71–3.6V supply; -40°C to 105°C; 32-QFN (5×5mm) exposed pad; tray.
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications
| Parameter | Value |
|---|---|
| Series | Kinetis KL1 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 48MHz |
| Package | Tray |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, LVD, POR, PWM, WDT |
| Connectivity | I²C, LINbus, SPI, UART/USART |
| Number of i (O) | 28 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 32-UFQFN Exposed Pad |
| Data converters | A/D 11x16b; D/A 1x12b |
| Program memory size | 128KB (128K x 8) |
Frequently asked questions
Is the MKL17Z128VFM4 drop-in pin-compatible with other KL17 variants in larger packages?
No. The 32-QFN (5×5 mm) exposed-pad footprint is specific to this package variant and is not pin-compatible with KL17 devices in 44-pin or 64-pin TSSOP packages — a layout re-spin is required when moving between package families within the KL17 series.
Are the I/O pins 5V-tolerant at 3.3 V VDD, or does the board need level-shifters for 24V industrial signals?
The public summary does not list 5V input tolerance at 3.3 V VDD for this device. Designs interfacing to 24 V industrial signal inputs should not assume tolerance — external level-shifters or current-limiting resistors are required. Verify the absolute-maximum pin ratings in the full NXP datasheet before finalising the BOM.
What flash and SRAM does the MKL17Z128VFM4 carry, and how does it compare to the 256KB peer?
The part has 128KB Flash and 32KB SRAM. The peer MKL17Z256 doubles the Flash to 256KB at comparable clock speed and peripheral set — if firmware footprint plus OTA reserve is pushing against 128KB, the 256KB variant buys headroom at a higher unit cost and same 32-QFN package.