NXP LPC55S66JBD100K ARM Cortex-M33 MCU 150MHz 256KB Flash 144KB RAM 100-LQFP
NXP LPC55S6x series ARM Cortex-M33 MCU, 150MHz single-core, 256KB Flash, 144KB RAM, 64 I/O, 1.8–3.6V supply, -40°C to 105°C operating range, 100-HLQFP (14x14mm) exposed-pad surface-mount package, USB Full Speed, Flexcomm, SDIO, 10-channel 16-bit ADC, DMA, active ROHS3.
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
- Date & lot codes on quoteStated per line before you commit; label photos on request.
- MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications
| Parameter | Value |
|---|---|
| Series | LPC55S6x |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 150MHz |
| Package | Tray |
| RAM size | 144K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| Connectivity | Flexcomm, I2C, MMC/SD/SDIO, SPI, UART/USART, USB |
| Number of i (O) | 64 |
| Core processor | ARM® Cortex®-M33 |
| Case | 100-LQFP Exposed Pad |
| Data converters | A/D 10x16b |
| Program memory size | 256KB (256K x 8) |
Frequently asked questions
Is there a drop-in replacement for the LPC55S66JBD100K if this part goes end-of-life?
No official successor or cross-reference alternate is cited in the available ledger. The sourcing posture is Active with no LTB notice — but for supply resilience, evaluate the pin-compatible sibling within the LPC55S6x family or confirm alternate sourcing through your NXP FAE before the design locks.
How does the LPC55S66JBD100K compare to the LPC55S69JBD100K?
The S66 carries 256KB Flash and 144KB RAM; the S69 carries more Flash (320KB) with less RAM (96KB). The S66 is the RAM-first choice for firmware with large heap allocations (file systems, network buffers, signal processing). The S69 is the Flash-first choice for applications with large code footprints and tighter RAM budgets. They share the same 100-LQFP package and 64 I/O, so board layout is compatible — but the RAM delta is a real sizing decision, not a trivial variant difference.