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MC68B50P
The MC68B50P is a versatile universal asynchronous receiver/transmitter (UART) chip developed by MotorolaMC68B50P
The MC68B50P is a versatile universal asynchronous receiver/transmitter (UART) chip developed by Motorola
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MC68B50P DataSheet
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Details
The MC68B50P is a universal synchronous/asynchronous receiver-transmitter (USART) integrated circuit manufactured by Motorola. It is commonly used in communication applications to facilitate serial data transmission/reception.Key features of the MC68B50P include a flexible baud rate generator, programmable control registers, buffered input/output, and full-duplex operation. It can operate in both synchronous and asynchronous modes, supporting data rates up to 1 Mbps.The MC68B50P is designed to interface with microcontrollers, CPUs, and other digital devices, providing reliable serial communication capabilities. It is widely used in industrial automation, networking, telecommunications, and other embedded systems.The device is housed in a 24-pin DIP package and requires a single power supply voltage ranging from 4.5V to 5.5V. It operates within a temperature range of -40°C to 85°C and consumes minimal power, making it suitable for battery-powered applications.
Key Features
- 5V-only device
- Operates up to 2MHz
- Asynchronous communications element
- Send and Receive data streams
- Flexible control system
- 4 programmable baud rate generators
- Programmable character size and stop bits
- Configurable for 20mA and 5mA currents
- Low-power CMOS technology
Application
- Data communication
- Telecommunication
- Networking
- Embedded systems
- Industrial control systems
- Automotive systems
- Medical devices
- Robotics
- Security systems
- Home automation
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 | |
| 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 DMA Channels | Number of I/O Lines | ||
| Number of Serial I/Os | 1 | Number of Terminals | 24 |
| On Chip Data RAM Width | Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | 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.
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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