NXP LPC2923FBD100,551 ARM9 MCU 125MHz 100-LQFP
MPNLPC2923FBD100,551
Obsolete
NXP LPC2900 series ARM9® MCU, LPC2923FBD100,551 in 100-LQFP tray; 125MHz core, 256KB Flash, 24KB RAM, 16KB EEPROM; 60 I/O, USB/CAN/SPI/I²C/LIN/UART; 1.71–3.6V supply, -40°C to 85°C.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | LPC2900 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 125MHz |
| Package | Tray |
| RAM size | 24K x 8 |
| Core size | 16/32-Bit |
| EEPROM size | 16K x 8 |
| Peripherals | DMA, POR, PWM, WDT |
| Connectivity | CANbus, I²C, LINbus, SPI, UART/USART, USB |
| Number of i (O) | 60 |
| Core processor | ARM9® |
| Case | 100-LQFP |
| Data converters | A/D 16x8b |
| Program memory size | 256KB (256K x 8) |
Frequently asked questions
Does the 100-LQFP footprint of this part drop into existing LPC29xx board layouts without changes?
Pin compatibility across the LPC29xx family is not guaranteed for all variants — the 551 suffix denotes a specific temperature and timing grade. Any cross-reference candidate requires pinout and supply confirmation before assuming drop-in fit.
Can the internal oscillator support USB full-speed without an external crystal?
USB full-speed at 12 Mbit/s requires ±0.25% frequency accuracy. The internal RC oscillator alone will not reliably meet this across the full temperature range. An external crystal on XTAL1/2 is required for compliant USB operation; the internal oscillator may suffice for device enumeration only.