LPC2157FBD100
16/32-bit ARM7 microcontrollers with 512KB flash, USB, and LQFP packaging
Manufacturer： nxp
series introduction
# Introduction to the LPC2157FBD100 Product Series
## 1. Overview
The LPC2157FBD100 is a remarkable member of a product series that belongs to the ARM7 - based microcontroller family. These microcontrollers are designed to offer a high - performance, cost - effective, and power - efficient solution for a wide range of embedded applications. The "LPC2157" represents the specific model within the series, while "FBD100" indicates the package type, which is a 100 - pin Fine - Pitch Ball Grid Array (FBGA) package.
## 2. Key Features
### 2.1 Processor Core
- **ARM7TDMI - S Core**: At the heart of the LPC2157FBD100 lies the ARM7TDMI - S 32 - bit RISC processor core. This core provides a high - speed execution engine with a Harvard architecture, which separates the instruction and data buses. This allows for simultaneous access to instructions and data, significantly enhancing the processing speed. It operates at a clock frequency that can reach up to 60 MHz, enabling it to handle complex tasks with ease.
- **Thumb Instruction Set**: The ARM7TDMI - S core supports the Thumb instruction set, which provides a 16 - bit instruction encoding. This reduces the code size while maintaining high performance, making it ideal for applications with limited memory resources.
### 2.2 Memory
- **On - Chip Flash Memory**: The LPC2157FBD100 is equipped with 512 KB of on - chip flash memory. This non - volatile memory is used to store the program code, allowing for easy reprogramming and updates. The flash memory has a high - speed access time, which enables fast execution of the stored instructions.
- **On - Chip SRAM**: There is 40 KB of on - chip Static Random - Access Memory (SRAM). SRAM provides fast data storage and access, which is crucial for storing variables, buffers, and intermediate results during program execution. It helps in reducing the access time and improving the overall system performance.
### 2.3 Peripherals
#### 2.3.1 Serial Communication
- **UART (Universal Asynchronous Receiver - Transmitter)**: The device features two UARTs, which are commonly used for asynchronous serial communication. They support baud rates up to 1 Mbps and can be used for communication with other serial devices such as sensors, displays, and modems.
- **SPI (Serial Peripheral Interface)**: There are two SPI interfaces available. SPI is a synchronous serial communication protocol that offers high - speed data transfer. It is often used for communicating with external devices like flash memories, ADCs (Analog - to - Digital Converters), and DACs (Digital - to - Analog Converters).
- **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 peripheral devices such as EEPROMs, sensors, and real - time clocks.
#### 2.3.2 Timers and Counters
- **Multiple Timers**: The LPC2157FBD100 includes several timers, such as two 32 - bit timers and two 16 - bit timers. These timers can be used for various purposes, including generating time delays, measuring time intervals, and generating PWM (Pulse - Width Modulation) signals.
- **PWM Outputs**: The timers can be configured to generate PWM signals, which are commonly used for motor control, LED dimming, and power regulation applications.
Images for reference
100-LQFP SOT407-1
100-LQFP
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