MC68B50P

The MC68B50P is a versatile universal asynchronous receiver/transmitter (UART) chip developed by Motorola
7,662 Effective Inventory

MC68B50P

Effective Inventory7,662

The MC68B50P is a versatile universal asynchronous receiver/transmitter (UART) chip developed by Motorola

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MC68B50P DataSheet
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MC68B50P Description

The MC68B50P is an asynchronous communications interface adaptor from Freescale Semiconductor, designed for reliable data transmission in various applications. This device is ideal for industrial communication systems, featuring high ESD protection, low power consumption, and a wide operating temperature range.

Pin Details

The MC68B50P is a 20-pin QFP (Quad Flat Pack) package with the following pin configuration:

  • Pin 1 (VCC): Positive Power Supply
  • Pin 2 (GND): Ground
  • Pin 3 (A): Non-inverting Receiver Input/Driver Output
  • Pin 4 (B): Inverting Receiver Input/Driver Output
  • Pin 5 (DE): Driver Output Enable
  • Pin 6 (RE): Receiver Output Enable
  • Pin 7 (RO): Receiver Output
  • Pin 8 (DI): Driver Input
  • Pin 9-20: Unused pins

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.
  • Flexible Control System: Allows for programmable baud rate generators, character size, and parity checking.

Applications

The MC68B50P is suitable for various industrial communication systems, including data acquisition, process control, and automation applications.

Where to Use:

  • Data Acquisition Systems: The MC68B50P can be used in data acquisition systems that require reliable and efficient data transmission.
  • Process Control Systems: This device is suitable for process control systems that need to transmit data reliably over long distances.
  • Automation Applications: The MC68B50P can be used in automation applications, such as manufacturing and industrial control systems.

Manufacturer

The MC68B50P is manufactured by Freescale Semiconductor, a global leader in semiconductor technology.

Packages

The MC68B50P comes in a 20-pin QFP (Quad Flat Pack) package, designed for surface-mount technology and offering a compact and efficient solution for integrating the device into electronic circuits.

Equivalent Parts of MC68B50P

  • M68B50: A comparable asynchronous communications interface adaptor from Freescale Semiconductor with similar features and performance.

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 Address Bus Width ! 1
Boundary Scan NO Bus Compatibility 6800
Clock Frequency-Max 2 MHz Communication Protocol ASYNC, BIT
Data Encoding/Decoding Method NRZ Data Transfer Rate-Max 0.125 MBps
External Data Bus Width 8 JESD-30 Code R-PDIP-T24
JESD-609 Code e0 Length 31.75 mm
Low Power Mode NO Number of Serial I/Os 1
Number of Terminals 24 Operating Temperature-Max 70 °C
Package Body Material PLASTIC/EPOXY Package Code DIP
Package Shape RECTANGULAR Package Style IN-LINE
Qualification Status ! Not Qualified RAM (words) 0
Seated Height-Max 5.08 mm Supply Voltage-Max 5.25 V
Supply Voltage-Min 4.75 V Supply Voltage-Nom 5 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 SERIAL IO/COMMUNICATION CONTROLLER, SERIAL

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 MC68B50P PDF Download

FAQs

What is MC68B50P?

The MC68B50P is a versatile asynchronous communications interface adapter (ACIA) integrated circuit developed by Motorola. It is commonly used in various communication applications to facilitate serial data transmission and reception between devices.

How Does MC68B50P Work?

The MC68B50P operates by providing serial communication capabilities for data transmission and reception. It processes data in a parallel-to-serial or serial-to-parallel fashion, enabling devices to communicate over serial interfaces. The chip features baud rate programming, control registers, and interrupt capabilities for efficient serial communication.

How Many Pins does MC68B50P have and What are the Functions of the Pinout Configuration?

The MC68B50P is packaged in a 24-pin DIP (Dual Inline Package) format. The pinout configuration includes:

  • RxD: Receiver data input pin.
  • TxD: Transmitter data output pin.
  • RTS, CTS: Request-to-send and Clear-to-send pins for hardware flow control.
  • IRQ: Interrupt request input pin.
  • BAUD: Baud rate clock input pin.
  • Control and Status Registers: Pins for configuration and monitoring of the ACIA.

What are the Pros and Cons of MC68B50P?

Pros:

  • Versatile Communication: Provides serial communication capabilities for a wide range of applications.
  • Control Features: Includes control registers for flexible configuration of communication parameters.
  • Interrupt Support: Allows for efficient data handling through interrupt-driven communication.
  • Reliable Performance: Offers reliable data transmission and reception for effective communication.
  • Compatibility: Widely used and compatible with many systems and devices.

Cons:

  • Obsolete: Being an older chip, it may be challenging to source and may lack modern features.
  • Speed Limitations: Limited baud rate capabilities compared to newer communication chips.
  • Complexity: May require additional components or external logic for specific communication protocols.

Are There Any Equivalents/Alternatives to MC68B50P for Recommendation?

  • The 16550 UART from National Semiconductor is a comparable alternative with enhanced features.
  • Alternatives to the MC68B50P include the SCC2691 from NXP Semiconductors and the UART from STMicroelectronics.

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