NXP LPC54114J256UK49Z — 32-bit Dual-Core ARM MCU, 256KB Flash, 49-WLCSP
NXP LPC54100 series, ARM Cortex-M4/M0+ dual-core MCU @100MHz, 256KB Flash / 192KB RAM, 39 I/O, USB/I2C/SPI/UART, 1.62–3.6V, -40°C to 105°C, 49-UFBGA WLCSP (3.44×3.44mm).
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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- MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications
| Parameter | Value |
|---|---|
| Series | LPC54100 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.62V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 100MHz |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| RAM size | 192K x 8 |
| Core size | 32-Bit Dual-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | I²C, SPI, UART/USART, USB |
| Number of i (O) | 39 |
| Core processor | ARM® Cortex®-M4/M0+ |
| Case | 49-UFBGA, WLCSP |
| Data converters | A/D 12x12b |
| Program memory size | 256KB (256K x 8) |
Frequently asked questions
Can the LPC54114J256UK49Z be hot-plugged on a USB rail without external POR circuitry?
The chip carries an internal brown-out detect/reset and POR block per the spec table, but the sequencing threshold and response time relative to USB VBUS detection are documented in the NXP device errata and datasheet — not in the spec table. The brown-out reset is present; whether it asserts before USB enumeration failure on a marginal rail is a timing condition to verify against your USB host compliance requirement before dropping the external supervisor.
What is the package rework risk for the 49-WLCSP?
The 49-ball WLCSP at 3.44×3.44mm requires precision reflow tooling — it is not a hand-solder part. Moisture sensitivity is higher than leaded packages; verify MSL rating and dry-bake requirements with your assembler before any rework. Board respin triggered by package mismatch costs more than the MCU delta, so confirm ball pitch and pin-map against the NXP package specification before layout lock.