7448 Bcd To 7 Segment Decoder Driver Ic 74ls48 Sn74ls48n 74hc48

74LS48 BCD to 7-Segment Decoder/Driver IC

The 74LS48 is a BCD to 7-Segment Decoder/Driver IC, designed to convert Binary-Coded Decimal (BCD) input to the appropriate 7-segment display output for common-cathode LED displays. This IC is commonly used in applications where numeric displays are required, such as in digital clocks, counters, and other devices that use 7-segment displays for numeric output.

Key Features:

• Active-High Outputs: The 74LS48 IC provides active-high outputs, ideal for driving lamp buffers or common-cathode LED displays.
• Ripple Blanking Input/Output Controls: Includes full ripple-blanking input/output controls, allowing for more precise display management, particularly in multi-digit displays.
• Lamp-Test Input: The IC has a lamp test (LT) input, which allows testing of the 7-segment display without sending normal data.
• Leading/Trailing Zero Suppression: Automatically controls the leading and/or trailing-zero suppression to ensure cleaner display output, especially when showing numbers such as “00” or “000”.
• Blanking Input (BI): Includes an overriding blanking input (BI), which can be used to inhibit the display outputs or control the lamp intensity by pulsing.
• Lamp Intensity Modulation: Capable of controlling lamp intensity through modulation for enhanced visual effects.
• Unique Display Patterns: For BCD input counts above 9, the IC generates unique symbols to indicate invalid input, helping to authenticate the input conditions.
• TTL Compatibility: Inputs and outputs are fully compatible with TTL logic outputs, making it easy to integrate into digital systems.
• Internal Pull-Ups: The design includes internal pull-up resistors, eliminating the need for additional external resistors.

Applications:

• Digital Clocks: Ideal for driving 7-segment displays in clocks and timers.
• Counters: Perfect for use in counters, especially in systems that require displaying BCD numbers.
• Numeric Displays: Used in any device requiring the display of decimal numbers in a 7-segment format, such as calculators and electronic meters.

Package Includes:

• 1 x 74LS48 BCD to 7-Segment Decoder/Driver IC
  (also available as SN74CH48N, 74HC48)

The 74LS48 is an essential component for any project requiring BCD to 7-segment decoding, offering advanced features for controlling display behavior, such as zero suppression, lamp testing, and intensity modulation. This versatile IC ensures reliable performance in applications ranging from clocks to counters and other display-based systems.