NXP LPC1114JBD48/333QL, LPC1100XL series, 32-bit ARM Cortex-M0 single-core at 50MHz, 56KB Flash, 8KB RAM, 42 I/O, 1.8-3.6V supply, -40 to 105°C operating ambient, 48-LQFP surface-mount package in tray.
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Specifications
| Parameter | Value |
|---|---|
| Series | LPC1100XL |
| 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 | 50MHz |
| Package | Tray |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Connectivity | I²C, SPI, UART/USART |
| Number of i (O) | 42 |
| Core processor | ARM® Cortex®-M0 |
| Case | 48-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 56KB (56K x 8) |
Frequently asked questions
Does the internal oscillator on the LPC1114JBD48/333QL handle 115200 baud reliably over temperature, or do I need an external crystal?
The internal oscillator on this family is specified at ±1% accuracy at 25°C and ±2% across the full temperature range — sufficient to meet UART timing error budgets at 115200 baud without an external crystal. An external crystal or resonator is optional, not required, for standard baud rates.
Is the 48-LQFP drop-in compatible with a legacy board using the LPC1111 in 32-QFN?
No — the LPC1111 uses a smaller 32-QFN package with fewer GPIOs. The LPC1114JBD48/333QL in 48-LQFP requires a PCB re-spin to remap the GPIO mux assignments. Pin counts and package footprints are not compatible.
What is the brown-out reset threshold on this MCU?
The minimum operating supply is 1.8V; the brown-out detector holds the device in reset when VDD falls below the threshold. The specific min/max BOD window is in the NXP datasheet — the spec table lists the 1.8V floor as the minimum supply, not the exact BOD trip point.
Does the LPC1114JBD48/333QL support Profinet IO directly, or do I need an external protocol IC?
The peripheral set is I²C, SPI, and UART/USART — no on-chip Ethernet MAC or CAN. A Profinet IO field device requires an external protocol controller; the on-chip UART/USART can bridge to a fieldbus ASIC but cannot carry industrial Ethernet without additional hardware.