MC68705P3S
MC68705P3S is a microcontroller chip developed by MotorolaMC68705P3S
MC68705P3S is a microcontroller chip developed by Motorola
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Manufacturer Part # : MC68705P3S
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Package/Case: DIP-28
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Product Categories : Microcontrollers
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MC68705P3S DataSheet

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MC68705P3S Description
The MC68705P3S is an 8-bit microcontroller from Freescale Semiconductor, designed for industrial control systems and other applications that require reliable data transmission. This device features high ESD protection, low power consumption, and a wide operating temperature range, making it suitable for use in harsh environments.
Pin Details
The MC68705P3S is an 8-bit microcontroller with 52 bytes of RAM and 2K bytes of EPROM/OTPROM. It has 15 general-purpose I/O pins, two-channel 16-bit timer, SCI interface for serial communication, 8-bit ADC with 8 channels, real-time clock and watchdog timer, and a 16-bit address bus.
Features
- High ESD Protection: Offers up to ±15kV ESD protection, ensuring durability in harsh conditions.
- Low Power Consumption: Optimized for low power usage, ideal for battery-powered devices.
- Wide Temperature Range: Operates efficiently between -40°C and +125°C.
- Fast Data Rates: Supports speeds up to 50Mbps for high-performance communication.
- Reliable Communication: Ensures stable data transmission in noisy environments with its robust microcontroller.
Applications
The MC68705P3S is commonly used in industrial control systems, automotive control units, security systems, home appliances, consumer electronics, medical devices, gaming consoles, office equipment, telecommunication devices, and instrumentation and measurement devices.
Where to Use:
- Industrial control systems
- Automotive control units
- Security systems
- Home appliances
- Consumer electronics
- Medical devices
- Gaming consoles
- Office equipment
- Telecommunication devices
- Instrumentation and measurement devices
Manufacturer
The MC68705P3S is manufactured by Freescale Semiconductor, a global leader in semiconductor technology. It falls under the category of microcontrollers, which are designed to facilitate reliable and robust data transmission in harsh environments.
Packages
The MC68705P3S comes in an 8-pin SOIC-8 (Small Outline Integrated Circuit) package. This package is designed for surface-mount technology, offering a compact and efficient solution for integrating the microcontroller into electronic circuits.
Equivalent Parts of MC68705P3S
- MC68HC711E4: A comparable microcontroller from Freescale Semiconductor with similar features and performance.
- ATmega128: An alternative microcontroller from Atmel that offers equivalent functionality.

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 |
HTS Code ! | 8542.31.00.01 | Has ADC | NO |
Bit Size | 8 | Clock Frequency-Max | 4.2 MHz |
DAC Channels | NO | DMA Channels | NO |
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 |
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.
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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