MC68705P3S

Name: MC68705P3S
Rating: 4.5 (10 reviews)

MC68705P3S is a microcontroller chip developed by Motorola

4,973 Effective Inventory

MC68705P3S

Effective Inventory4,973

MC68705P3S is a microcontroller chip developed by Motorola

Manufacturer Part # : MC68705P3S
Package/Case: DIP-28
Brand: MOTOROLA
Product Categories : Microcontrollers

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MC68705P3S DataSheet

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Details

The MC68705P3S is an 8-bit microcontroller manufactured by Motorola. It features a single-chip design, integrating a CPU, ROM, RAM, I/O ports, and timers on a single silicon die. With a clock speed of up to 3.5 MHz, it offers moderate processing power suitable for various embedded applications. The ROM size typically ranges from 2 to 4 KB, while RAM capacity is around 128 bytes. It supports both serial and parallel communication interfaces, enabling connectivity with external devices. The MC68705P3S is known for its low power consumption, making it suitable for battery-powered devices. It also features a built-in oscillator circuit, simplifying system design and reducing external component count. Additionally, it supports on-chip debugging capabilities, aiding in software development and troubleshooting.

Key Features

8-bit MPU with 52 bytes RAM
2K bytes of EPROM/OTPROM
15 general-purpose I/O pins
2-channel 16-bit timer
SCI interface for serial communication
8-bit ADC with 8 channels
Real-time clock and watchdog timer
16-bit address bus

Application

Industrial control systems
Automotive control units
Security systems
Home appliances
Consumer electronics
Medical devices
Gaming consoles
Office equipment
Telecommunication devices
Instrumentation and measurement devices

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code	No	Part Life Cycle Code	Obsolete
Reach Compliance Code		HTS Code !	8542.31.00.01
Has ADC	NO	Address Bus Width !
Bit Size	8	Clock Frequency-Max	4.2 MHz
DAC Channels	NO	DMA Channels	NO
External Data Bus Width		JESD-30 Code	R-CDIP-T28
JESD-609 Code	e0	Length	37.145 mm
Number of I/O Lines	20	Number of Terminals	28
Operating Temperature-Max	70 °C	Operating Temperature-Min
PWM Channels	NO	Package Body Material	CERAMIC, METAL-SEALED COFIRED
Package Code	WDIP	Package Shape	RECTANGULAR
Package Style	IN-LINE, WINDOW	Qualification Status !	Not Qualified
ROM Programmability	UVPROM	Seated Height-Max	6.09 mm
Speed	1 MHz	Supply Voltage-Max	5.75 V
Supply Voltage-Min	4.75 V	Supply Voltage-Nom	5.25 V
Surface Mount !	NO	Technology	NMOS
Temperature Grade !	COMMERCIAL	Terminal Finish	TIN LEAD
Terminal Form !	THROUGH-HOLE	Terminal Pitch !	2.54 mm
Terminal Position	DUAL	Width	15.24 mm
uPs/uCs/Peripheral ICs Type	MICROCONTROLLER

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification MC68705P3S PDF Download

FAQs

What is MC68705P3S?

The MC68705P3S is a microcontroller unit (MCU) from Motorola, now Freescale Semiconductor, which features a 6805 CPU core. It is commonly used in embedded systems, automotive applications, and industrial control systems.

How Does MC68705P3S Work?

The MC68705P3S operates as a microcontroller with a 6805 CPU core, providing processing power for various embedded applications. It integrates a versatile set of peripherals and interfaces for interacting with external components, making it suitable for controlling and monitoring tasks.

How Many Pins does MC68705P3S have and What are the Functions of the Pinout Configuration?

The MC68705P3S is typically available in a 28-pin DIP (Dual Inline Package) or similar package. The pinout configuration includes:

VDD: Power supply pin.
VSS: Ground pin.
OSC1, OSC2: Crystal oscillator connections.
RST: Reset pin.
IRQ: Interrupt request pin.
PORT A, PORT B: General-purpose I/O ports.
TXD, RXD: Serial communication pins.
PWM: Pulse Width Modulation output pin.

What are the Pros and Cons of MC68705P3S?

Pros:

Well-Established: The 6805 core has a long history of reliable operation in embedded systems.
Integrated Peripherals: Includes various on-chip peripherals for enhanced functionality.
Industry Usage: Widely used in automotive and industrial applications, ensuring compatibility.
Cost-Effective: Provides a balance between features and cost for many applications.
Development Tools: Supports a range of development tools and software for programming.

Cons:

Legacy Technology: The 6805 core may lack some modern features and capabilities found in newer microcontrollers.
Limited Resources: May have limited memory and processing power compared to more advanced microcontrollers.
Availability: Older MCU models like the MC68705P3S may face challenges in terms of availability and support.

Are There Any Equivalents/Alternatives to MC68705P3S for Recommendation?

An equivalent MCU to the MC68705P3S is the PIC16F84A from Microchip Technology.
Alternative microcontrollers to consider include the ATmega328P from Microchip Technology and the STM32F103 from STMicroelectronics.

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