ATmega328P PDF Datasheet – 8-bit AVR Microcontroller

This is one of the Microcontroller types. An 8-bit AVR microcontroller is a type of microcontroller from the AVR (Alf and Vegard’s RISC processor) family developed by Atmel (now a part of Microchip Technology). These microcontrollers are characterized by their 8-bit CPU architecture, making them suitable for a wide range of embedded system applications where moderate computational power and low power consumption are required.

The Part Number is ATmega328P.

The function of this semiconductor is 8-bit AVR Microcontroller.

Manufacturer: ATMEL, Microchip

Preview images :

ATmega328P pdf


8-bit AVR Microcontrollers ATmega328/P DATASHEET COMPLETE Introduction The Atmel® picoPower® ATmega328/P is a low-power CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega328/P achieves throughputs close to 1MIPS per MHz. This empowers system designer to optimize the device for power consumption versus processing speed.

Block Diagram

ATmega328P pinout datasheet


1. High Performance, Low Power Atmel®AVR® 8-Bit Microcontroller Family

2. Advanced RISC Architecture
– 131 Powerful Instructions
– Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 20 MIPS Throughput at 20MHz
– On-chip 2-cycle Multiplier

3. High Endurance Non-volatile Memory Segments
– 32KBytes of In-System Self-Programmable Flash program Memory
– 1KBytes EEPROM
– 2KBytes Internal SRAM
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data Retention: 20 years at 85°C/100 years at 25°   […]


ATmega328P PDF Datasheet

MSM80C154S PDF Datasheet – CMOS 8-bit Microcontroller

Part Number: MSM80C154S, MSM83C154S

Function: CMOS 8-bit Microcontroller

Package: DIP 40, QFP 44 Pin Type

Manufacturer: OKI electronic componets


MSM80C154S datasheet pinout


A CMOS 8-bit microcontroller is a type of microcontroller (MCU) built using complementary metal-oxide-semiconductor (CMOS) technology and capable of processing data in 8-bit chunks. Microcontrollers are integrated circuits that contain a central processing unit (CPU), memory, input/output (I/O) ports, timers, and various peripherals, all on a single chip. The “8-bit” designation refers to the width of the data bus, indicating that the microcontroller processes data in 8-bit units.

The MSM80C154S, MSM83C154S, designed for the high speed version of the existing MSM80C154, MSM83C154, is a higher performance 8-bit microcontroller providing low-power consumption.

1. CMOS Technology: CMOS is a low-power semiconductor fabrication technology commonly used in microcontrollers. CMOS-based microcontrollers offer advantages like low power consumption, high noise immunity, and compatibility with various supply voltages.

2. 8-Bit CPU Core: The central processing unit (CPU) of the microcontroller is an 8-bit core, meaning it can process data in 8-bit chunks or bytes. This type of microcontroller is suitable for applications that don’t require extensive computational power but need to interface with sensors, peripherals, and control functions.

Block diagram:
MSM80C154S pdf


1. Fully static circuit

2. Upward compatible with the MSM80C51F/80C31F

3. On-chip program memory : 16K words x 8 bits ROM (MSM83C154S only)

4. On-chip data memory : 256 words x 8 bits RAM

5. External program memory address space : 64K bytes ROM (Max)

6. External data memory address space : 64K bytes RAM

7. I/O ports : 4 ports x 8 bits (Port 1, 2, 3, impedance programmable) :  32

8. 16-bit timer/counters : 3

MSM80C154S PDF Datasheet

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