## A

 - **ADC**: Analog to Digital Converter

## C

 - **CPU**: Central Processing Unit
 - **CSi**: Camera Serial Interface

## D

 - **DAC**: Digital to Analog Converter
 - **DFU**: Device Firmware Update
 - **DMA**: Direct Memory Access
 - **DDR**: Dual Data Rate
 - **DRAM**: Dynamic Random-Access Memory
 - **DSi**: Display Serial Interface

## E

 - **ERC**: Electrical Rule Check
 - **ESD**: Electro-Static Discharge

## F

 - **FPU**: Floating Point Unit

## G

 - **GPIO**: General-Purpose Input/Output
 - **GPU**: Graphic Processing Unit

## I

 - **I/O**: Input/Output
 - **I2C**: Inter-Integrated Circuit Bus
 - **IPS**: In-Plane Switching or Intelligent Power Select
 - **IRQ**: Interrupt ReQuest

## L

 - **LED**: Ligh-Emitting Diode
 - **LCD**: Liquid-Crystal Display
 - **LDO**: Low Drop-Out
 - **LiPo**: Lithium Polymer

## M

 - **MMU**: Memory Management Unit
 - **MIPI**: Mobile Industry Processor Interface

## N

 - **NTC**: Negative Temperature Coefficient

## O
 - **OPK**: Open Package
 - **OTG**: On-The-Go

## P

 - **PCBA**: Printed Circuit Board Assembly
 - **PCB**: Printed Circuit Board
 - **PIO**: Peripheral I/O
 - **PLL**: Phase-Locked Loop
 - **PMIC**: Power Management Integrated Circuit
 - **PMU**: Power Managment Unit
 - **PoP**: Package on Package
 - **PSRR**: Power Supply Rejection Ratio
 - **PWM**: Pulse Width Modulation

## R

 - **RAM**: Random-Access Memory
 - **ROM**: Read-Only Memory
 - **RTC**: Real-Time Clock

## S

 - **SD**: Secure Digital
 - **SIMD**: Single Instruction Multiple Data
 - **SiP**: System in Package
 - **SMPS**: Switched-Mode Power Supply
 - **SoC**: System on Chip
 - **SPI**: Serial Peripheral Interface
 - **SPL**: Secondary Program Loader
 - **SRAM**: Static Random-Access Memory

## T

 - **TFT LCD**:  Thin-Film-Transistor Liquid-Crystal Display
 - **TVS**: Transcient Voltage Suppressor

## U

 - **UART**: Universal Asynchronous Receiver/Transmitter
 - **USB**: Universal Serial Bus