NXP LPC11Uxx series 32-bit ARM Cortex-M0 MCU, 50 MHz, 128 KB Flash, 12 KB RAM, 4 KB EEPROM, USB 2.0, 40 I/O, 48-LQFP, -40 to 85 °C.
| Parameter | Value |
|---|---|
| Series | LPC11Uxx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 12K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 4K x 8 |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Connectivity | I²C, Microwire, SmartCard, SPI, SSP, UART/USART, USB |
| Number of i (O) | 40 |
| Core processor | ARM® Cortex®-M0 |
| Case | 48-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 128KB (128K x 8) |
The LPC11U37FBD48/501,: The 50 MHz core clock supports real-time control loops and USB polling at full-speed frame rates.
The 128 KB Flash and 12 KB SRAM support a USB stack and RTOS kernel. The 4 KB EEPROM is byte-erasable.
Yes, NXP has marked the LPC11U37FBD48/501 as obsolete. The manufacturer no longer accepts new orders, and the last-time-buy window has closed. Sourcing is through the independent surplus and broker channel.
This obsolete part is sourced through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time. Submit an RFQ through this listing for a current sourcing quote.
The evidence does not provide a direct compatibility statement between these two order codes. Both share the LPC11U37 base and the same 48-LQFP package, but verify the specific Flash, RAM, and USB configuration against your firmware requirements before assuming drop-in compatibility.
The pinout follows the standard LPC11U37 48-LQFP assignment. The 48-LQFP package provides 40 general-purpose I/O pins, with dedicated pins for USB D+/D-, I²C, SPI, UART, and the internal oscillator. Refer to the NXP LPC11Uxx datasheet for the full pin diagram.