The MM53130N is a monolithic integrated circuit manufactured by National Semiconductor (now Texas Instruments). It is a 4-digit, 6-function calculator array designed for use in electronic calculators. The device incorporates all the necessary logic and control circuitry to perform basic arithmetic operations such as addition, subtraction, multiplication, and division, as well as more advanced functions like square root and percentage calculations. It was a popular component in early electronic calculators due to its compact size and comprehensive functionality.

Applications:

• Basic electronic calculators
• Early digital consumer electronics
• Educational tools for demonstrating arithmetic principles
• Industrial control systems (early models utilizing calculator functions)
• Simple data processing devices

Features:

• 4-digit display capability
• 6-function arithmetic operations (addition, subtraction, multiplication, division, square root, percentage)
• Monolithic integrated circuit design
• Internal clock oscillator
• Direct LED display drive capability

Benefits:

• Provides a complete calculator function within a single chip
• Reduces the component count and complexity of calculator designs
• Offers a cost-effective solution for implementing arithmetic functions
• Simplifies the design and manufacturing process
• Enables compact calculator designs

Specifications:

The MM53130N typically operates on a single +9V power supply. It is designed to drive LED displays directly, eliminating the need for external driver components. The device uses multiplexed BCD outputs to interface with the display. The operating temperature range is generally from 0°C to +70°C. The package is typically a 28-pin DIP (Dual In-line Package).

While largely obsolete due to the advent of more advanced and integrated calculator chips, the MM53130N represents a significant milestone in the development of early electronic calculators. Its single-chip integration of calculator functions was a key innovation in the field of microelectronics.