Overview
The LPC1125JBD48/303QL is a 32-bit microcontroller from NXP USA Inc., part of the LPC11xx family, which is based on the Arm Cortex-M0 processor. This microcontroller operates at CPU frequencies of up to 50 MHz, making it a versatile and efficient choice for various embedded systems applications. It is designed to be low-cost and highly integrated, offering a range of features that make it suitable for a variety of use cases.
Key Specifications
| Specification | Value |
|---|---|
| Processor | Arm Cortex-M0 |
| Maximum CPU Frequency | Up to 50 MHz |
| Flash Memory | 64 kB |
| SRAM | 8 kB |
| UARTs | 3 (with fractional baud rate generation, internal FIFO, and RS-485 support) |
| I2C Interface | 2 (supporting full I2C-bus specification and Fast-mode Plus with a data rate of 1 Mbit/s) |
| SSP Controllers | 2 (with FIFO and multi-protocol capabilities) |
| ADC Channels | 8 (12-bit ADC with 2 Msamples/s) |
| GPIO Pins | Up to 38 (with configurable pull-up/pull-down resistors and open-drain mode) |
| Package Type | LQFP48 (plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm) |
| Power Supply | Single power supply (1.8 V to 3.6 V) |
Key Features
- ARM Cortex-M0 processor with Nested Vectored Interrupt Controller (NVIC)
- Serial Wire Debug and system tick timer
- In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software
- High-current output driver (20 mA) and high-current sink drivers (20 mA) on I2C-bus pins
- Four general purpose counter/timers with up to six capture inputs and up to 13 match outputs
- Programmable windowed Watchdog Timer (WDT)
- Unique device serial number for identification
- Brownout detect with up to four separate thresholds for interrupt and forced reset
Applications
- eMetering
- Lighting systems
- Alarm systems
- White goods
Q & A
- What is the maximum CPU frequency of the LPC1125JBD48/303QL?
The maximum CPU frequency is up to 50 MHz. - How much flash memory does the LPC1125JBD48/303QL have?
The LPC1125JBD48/303QL has 64 kB of flash memory. - What is the SRAM capacity of the LPC1125JBD48/303QL?
The SRAM capacity is 8 kB. - How many UARTs does the LPC1125JBD48/303QL support?
The LPC1125JBD48/303QL supports three UARTs. - What is the data rate of the I2C interface on the LPC1125JBD48/303QL?
The I2C interface supports a data rate of 1 Mbit/s in Fast-mode Plus. - How many ADC channels does the LPC1125JBD48/303QL have?
The LPC1125JBD48/303QL has eight 12-bit ADC channels. - What is the package type of the LPC1125JBD48/303QL?
The package type is LQFP48. - What is the voltage range of the power supply for the LPC1125JBD48/303QL?
The power supply voltage range is from 1.8 V to 3.6 V. - Does the LPC1125JBD48/303QL support In-System Programming (ISP) and In-Application Programming (IAP)?
Yes, it supports both ISP and IAP via on-chip bootloader software. - What are some common applications of the LPC1125JBD48/303QL?
Common applications include eMetering, lighting systems, alarm systems, and white goods.
