EF68B21P

Name: EF68B21P
Brand: STMicroelectronics NV
Rating: 4.5 (10 reviews)
Author: Lisleapex

Peripheral interface with 40 pins in a plastic Dual In-line Package (DIP)

1 Effective Inventory

EF68B21P

Effective Inventory1

Peripheral interface with 40 pins in a plastic Dual In-line Package (DIP)

Manufacturer Part # : EF68B21P
Package/Case: DIP-40
Brand: STMicroelectronics NV
Product Categories : Controllers

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

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About Shipping

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Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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EF68B21P DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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EF68B21P Description

The EF68B21P is a high-performance parallel I/O controller interface IC from STMicroelectronics, designed for efficient data transfer and reliable communication in various industrial applications. This device features a 40-pin DIP package, making it suitable for compact circuit designs.

Pin Details

The EF68B21P is a low-power parallel I/O controller interface IC with 40 pins for data transfer. It includes pins for receiving, driving, and enabling signals, along with power supply and ground connections.

Pin configuration

Pin 1 (A0): Address Input 0
Pin 2 (A1): Address Input 1
Pin 3 (A2): Address Input 2
Pin 4 (A3): Address Input 3
Pin 5 (GND): Ground
Pin 6 (VCC): Positive Power Supply
Pin 7 (D0): Data Input/Output 0
Pin 8 (D1): Data Input/Output 1
Pin 9 (D2): Data Input/Output 2
Pin 10 (D3): Data Input/Output 3
Pin 39 (OE): Output Enable
Pin 40 (WR): Write Enable

Features

The EF68B21P features a high-speed parallel I/O interface, allowing for efficient data transfer and reliable communication in various industrial applications. It also includes:

Low power consumption
High-speed data transfer
Reliable communication
Compact 40-pin DIP package

Applications

The EF68B21P is suitable for various industrial applications where high-performance parallel I/O interfaces are required, such as:

Where to Use:

Industrial control systems
Automotive electronics
Aerospace and defense systems
Radar and communication systems

Manufacturer

The EF68B21P is manufactured by STMicroelectronics, a global leader in semiconductor technology.

Packages

The EF68B21P comes in a 40-pin DIP package, making it suitable for surface-mount technology and compact circuit designs.

Equivalent Parts of EF68B21P

74HC244: A comparable parallel I/O interface IC from NXP Semiconductors with similar features and performance.
CD54HCT244: An alternative parallel I/O interface IC from Texas Instruments 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
Reach Compliance Code	not_compliant	JESD-30 Code	R-PDIP-T40
JESD-609 Code	e0	Number of Terminals	40
Operating Temperature-Max	70 °C	Package Body Material	PLASTIC/EPOXY
Package Code	DIP	Package Equivalence Code	DIP40,.6
Package Shape	RECTANGULAR	Package Style	IN-LINE
Power Supplies !	5 V	Qualification Status !	Not Qualified
Supply Voltage-Nom	5 V	Surface Mount !	NO
Technology	MOS	Temperature Grade !	COMMERCIAL
Terminal Finish	TIN LEAD	Terminal Form !	THROUGH-HOLE
Terminal Pitch !	2.54 mm	Terminal Position	DUAL

FAQs

What is EF68B21P?

The EF68B21P is a versatile 8-bit microprocessor peripheral interface chip designed by Motorola. It is commonly used in various embedded control and interface applications, providing flexible parallel and serial input/output capabilities.

How Does EF68B21P Work?

The EF68B21P works by interfacing with microprocessors and other peripheral devices to facilitate data transfer and control functions. It features parallel I/O ports, serial interface options, and timer/counters, making it suitable for interfacing with a wide range of external components in embedded systems.

How Many Pins does EF68B21P have and What are the Functions of the Pinout Configuration?

The EF68B21P is housed in a 40-pin DIP (Dual Inline Package) package. The pinout configuration includes:

PA0-PA7: Parallel I/O ports A, with bidirectional data transfer capability.
PB0-PB7: Parallel I/O ports B, with bidirectional data transfer capability.
TxC/RxC, TxD/RxD: Serial interface ports for communication.
CLK, R/W, INT, RESET: Control and timing pins for interfacing with microprocessors.
VCC, GND: Power supply and ground pins.

What are the Pros and Cons of EF68B21P?

Pros:

Versatility: Provides both parallel and serial I/O options, suitable for diverse interfacing needs.
Timer/Counters: Includes timer/counter modules for timing and control applications.
Compatibility: Compatible with a wide range of microprocessors and microcontrollers.
Flexible Power Supply: Supports a wide range of supply voltages for compatibility with various systems.

Cons:

Obsolete: The EF68B21P is an older chip and may have limited availability and support compared to newer alternatives.
Limited Features: May not have advanced features found in more modern peripheral interface chips.

Are There Any Equivalents/Alternatives to EF68B21P for Recommendation?

The 82C55 from Intel is a similar peripheral interface chip with parallel I/O capabilities.
Alternatives to the EF68B21P include the MC6821 from Motorola and the P8255A from NEC.