7447 PDF Datasheet – BCD to 7-Segment Decoder / Driver

This post explains for the TTL.

The Part Number is 7447.

The function of this semiconductor is BCD to 7-Segment Decoder / Driver.

The package is DIP 16 Pin Type

Manufacturer: Fairchild Semiconductor

Preview :

ttl 7447 pdf pinout

Description

The 7447 is  BCD to 7-Segment Decoder / Driver. The IC is a TTL (Transistor-Transistor Logic) integrated circuit (IC) that serves as a BCD (Binary-Coded Decimal) to 7-segment latch/decoder/driver. Its primary function is to take a 4-bit BCD input and convert it into the necessary control signals to drive a 7-segment display to represent decimal numbers.

The DM7446A and DM7447A feature active-LOW outputs designed for driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols to authenticate input conditions. All of the circuits incorporate automatic leading and/or trailing-edge, zero-blanking control (RBI and RBO). Lamp test (LT) of these devices may be performed at any time when the BI/RBO node is at a HIGH logic level.

2 page
7447 ic datasheet

Features

1. Open-Collector Outputs Drive Indicators Directly

2. Lamp-Test Provision

3. Leading / Trailing Zero Suppression

 

Other data sheets are available within the file: DM7446AN, DM7447AN, SN7446A, SN74LS46

 

7447 PDF Datasheet

7447 pdf


 

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7400 PDF Datasheet – Quad 2-Input NAND Gate

This post explains for the TTL (Transistor-Transistor Logic) .

The Part Number is 7400, DM74LS00M, DM74LS00SJ, DM74LS00N.

The function of this IC is Quad 2-Input NAND Gate.

The package is DIP, SOP 14 Pin Type

Manufacturer: Fairchild Semiconductor

Images

7400 datasheet

Description

The 7400 TTL IC is a quad two-input NAND gate, meaning it contains four individual NAND gate circuits, and each gate has two inputs.

This device contains four independent gates each of which performs the logic NAND function. Quad 2-Input NAND Gate.

1. Function: This IC is primarily used for digital logic operations and performs the NAND (NOT-AND) logic function. Each NAND gate has two inputs and one output, and it produces an output logic low (0) when both inputs are logic high (1), and produces an output logic high otherwise.

2. Inputs and Outputs: The IC consists of four independent NAND gates, denoted as gate 1 (1A, 1B, 1Y), gate 2 (2A, 2B, 2Y), gate 3 (3A, 3B, 3Y), and gate 4 (4A, 4B, 4Y). Each gate has two inputs (A and B) and one output (Y).

3. Voltage and Power Supply: The TTL operates with a typical power supply voltage (VCC) of 5V and has a wide voltage range compatibility with TTL logic levels.

7400 pinout nand gate

The 7400 IC and the entire 7400 series are widely used in digital logic circuits, computer systems, microcontrollers, and other applications requiring logical operations. By combining multiple 7400 ICs or using other ICs in the 7400 series, more complex digital logic functions can be implemented.

It’s worth noting that there are various subtypes and variants within the 7400 series, such as the 7404 (hex inverter), 7408 (quad two-input AND gate), and 7432 (quad two-input OR gate), each offering different logical functions.

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7400 PDF Datasheet

7400 pdf

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