LPC2138FBD64/01
16/32-bit ARM7 microcontrollers with 512KB flash, 32KB RAM, 60MHz, LQFP-64
Manufacturer： nxp
series introduction
# Introduction to the LPC2138FBD64/01 Product Series
## 1. Overview
The LPC2138FBD64/01 is a member of the highly regarded LPC213x series of microcontrollers developed by NXP Semiconductors. These microcontrollers are based on the ARM7TDMI-S core, which is well - known for its high performance, low power consumption, and rich set of features. The LPC2138FBD64/01 is specifically designed to meet the requirements of a wide range of embedded applications, from industrial control systems to consumer electronics.
## 2. Key Features
### 2.1 Processor Core
- **ARM7TDMI - S Core**: The ARM7TDMI - S core provides a 32 - bit RISC architecture with a Harvard memory architecture. This allows for simultaneous instruction and data access, resulting in high - speed execution of code. It operates at a clock frequency of up to 60 MHz, enabling fast processing of complex tasks.
- **Thumb Instruction Set**: In addition to the standard ARM instruction set, the core supports the Thumb instruction set. Thumb instructions are 16 - bit in length, which helps to reduce code size while maintaining high performance. This is particularly useful in applications where memory space is limited.
### 2.2 Memory
- **On - Chip Flash Memory**: The LPC2138FBD64/01 comes with 512 kB of on - chip flash memory. This non - volatile memory is used to store the application code. The flash memory has a high - speed access time, which allows for fast execution of the program. It also supports in - system programming (ISP) and in - application programming (IAP), enabling easy software updates and customization.
- **On - Chip SRAM**: There is 32 kB of on - chip static random - access memory (SRAM). SRAM provides fast access to data, which is crucial for storing variables, buffers, and intermediate results during program execution.
### 2.3 Peripherals
#### 2.3.1 Serial Communication
- **UART (Universal Asynchronous Receiver - Transmitter)**: The microcontroller features two UARTs, which are commonly used for asynchronous serial communication. UARTs can be used to communicate with other devices such as sensors, displays, and modems. They support a wide range of baud rates, making them suitable for various communication requirements.
- **SPI (Serial Peripheral Interface)**: There are two SPI interfaces available. SPI is a synchronous serial communication protocol that allows for high - speed data transfer between the microcontroller and other SPI - compatible devices. It is often used for communicating with external memory chips, sensors, and other peripherals.
- **I²C (Inter - Integrated Circuit)**: An I²C interface is provided, which is a multi - master, multi - slave serial communication protocol. It is widely used for connecting low - speed devices such as EEPROMs, sensors, and real - time clocks. The I²C interface supports both standard and fast - mode operation.
#### 2.3.2 Timers and Counters
- **Multiple Timers**: The LPC2138FBD64/01 includes several timers, such as two 32 - bit timers and a watchdog timer. The 32 - bit timers can be used for a variety of applications, including generating accurate time delays, measuring time intervals, and generating PWM (Pulse Width Modulation) signals. The watchdog timer is used to monitor the system and reset it in case of a software malfunction.
#### 2.3.3 Analog - to - Digital Converter (ADC)
- **10 - bit
Images for reference
64-LQFP
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