RAM Circuit using IC 7489

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Product Details:

Usage Digital Data Storage and Retrieval, Memory Experiments
Voltage 5V DC
Display No Inbuilt Display
Power Requires External DC Power Supply
Product Type RAM Memory Module Circuit
Material PCB, Electronic Components, Integrated Circuit IC 7489
Design Discrete Component Circuit with Soldered PCB
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RAM Circuit using IC 7489 Price And Quantity

Minimum Order Quantity 1 Unit

Data Input Lines 4 Data Input (D0-D3)
Write Control Write Enable (WE) Pin
Protection None (Basic Educational Circuit)
Data Output Lines 4 Data Output (Q0-Q3)
Addressing Method 4-bit Binary Address Input
Application Digital Electronics Lab, Memory Timing Applications
Signal Levels TTL Compatible
Storage Capacity 64 bits (16 words x 4 bits)
Integrated Circuit Used IC 7489 (TTL 64-bit RAM 16x4)
Access Time Typically <50ns
Clock Requirement External Pulse Trigger
Connectivity Pin Headers/Soldered Points
Operating Temperature Range 0C to +70C
PCB Type Single Sided Printed Circuit Board
IC Package DIP-16
Mounting Type Through-Hole

RAM Circuit using IC 7489 Product Specifications

Product Type RAM Memory Module Circuit
Dimension (L*W*H) Approx. 80mm x 60mm x 18mm (based on image scale)
Voltage 5V DC
Power Source DC Power Adapter
Display No Inbuilt Display
Accuracy Dependent on clock signal stability and data input
Usage Digital Data Storage and Retrieval, Memory Experiments
Weight Approx. 40g
Power Requires External DC Power Supply
Design Discrete Component Circuit with Soldered PCB
Material PCB, Electronic Components, Integrated Circuit IC 7489

Data Input Lines 4 Data Input (D0-D3)
Write Control Write Enable (WE) Pin
Protection None (Basic Educational Circuit)
Data Output Lines 4 Data Output (Q0-Q3)
Addressing Method 4-bit Binary Address Input
Application Digital Electronics Lab, Memory Timing Applications
Signal Levels TTL Compatible
Storage Capacity 64 bits (16 words x 4 bits)
Integrated Circuit Used IC 7489 (TTL 64-bit RAM 16x4)
Access Time Typically <50ns
Clock Requirement External Pulse Trigger
Connectivity Pin Headers/Soldered Points
Operating Temperature Range 0C to +70C
PCB Type Single Sided Printed Circuit Board
IC Package DIP-16
Mounting Type Through-Hole

RAM Circuit using IC 7489 Trade Information

Supply Ability 5 Unit Per Week
Delivery Time 4-5 Days
Main Export Market(s) Australia, South America, Eastern Europe, Western Europe, Africa, Asia
Main Domestic Market All India

Product Description

RAM Circuit using IC 7489

Objective : To Study and verify the truth table of RAM (Random Access Memory) circuit.

Features : Instrument comprises of DC Regulated Power Supply 5VDC/150mA, ten logic inputs selectable using SPDT switches, four LED output indicators, IC 7489 placed on the front panel & connections brought out at sockets.

Quick Data Storage and Retrieval

Experience rapid data processing with the IC 7489-based RAM circuit, capable of handling up to 64 bits of information with typical access times below 50 nanoseconds. The 4-bit binary address input and 4-bit parallel data input/output lines simplify addressing and manipulation of stored data, making this circuit practical for various experimental and teaching projects.

Versatile Lab Applications

This memory circuit is designed primarily for academic purposes and digital electronics labs. Its compatibility with TTL logic levels and straightforward write-enable controls makes it highly suitable for demonstrating memory timing, sequential data experiments, and fundamental storage principles. The circuits robust construction and clear pin headers allow easy integration into broader electronic systems.

User-Friendly Design

With a single-sided PCB, standard through-hole components, and a DIP-16 packaged IC, users benefit from effortless assembly and straightforward connectivity. The layout encourages hands-on learning, ensuring that students and engineers alike can interact directly with memory operations. Its compact form factor further facilitates portability and convenient storage.

FAQs of RAM Circuit using IC 7489:

Q: How is data written and retrieved using the IC 7489 RAM circuit?

A: Data is written by applying a 4-bit binary address to the address lines, setting the desired data on the D0-D3 inputs, and activating the Write Enable (WE) pin with an external pulse. To retrieve data, select the address of the stored word and read the output from Q0-Q3.

Q: What are the key benefits of using the RAM circuit for educational purposes?

A: This circuit helps students understand the principles of digital storage and memory addressing. Its straightforward design highlights how memory chips function, supports hands-on experimentation, and assists with demonstrating basic memory timing and control operations in a controlled lab environment.

Q: When should I use this RAM circuit in a digital electronics project?

A: Use this RAM circuit when you need to store and retrieve small volumes of digital data, particularly for learning memory management, experimenting with timing, or as a temporary buffer in digital circuits. Its ideal for non-critical, experimental tasks rather than permanent storage.

Q: Where can the IC 7489 RAM module be integrated?

A: The module is typically used in digital electronics laboratories, but can also be integrated into custom circuit boards, microcontroller projects, or as part of memory experiment setups where direct access to memory cells is essential.

Q: What is the process for mounting and connecting the RAM circuit?

A: The module is supplied on a single-sided PCB with through-hole mounting. Connections are made via pin headers or soldered points. Ensure it is powered by a stable 5V DC supply, and wire the address, data, and control lines as specified in the circuit documentation for proper operation.

Q: How does the accuracy of the RAM circuit depend on the clock signal?

A: Accuracy relies on the timing and stability of the external pulse used for the write operation. Unstable or imprecise clock pulses may lead to incorrect data storage or retrieval, making stable signal generation essential, especially in memory timing experiments.

Q: What safety or protection features are built into the circuit?

A: This circuit is a basic educational module and does not include advanced protection features. It is designed for low-voltage, controlled lab environments. Proper handling and a regulated power supply are recommended to prevent accidental damage.

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