IC 7449 BCD to Seven Segment Decoder DIP-14

Description

The 74LS49 IC features active-high outputs for driving lamp buffer. This circuit incorporates a direct blanking input, segment identification & resultant displays. It also contains an overriding blanking input, which can be used to control the lamp intensity by pulsing or to inhibit the output. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers. The IC 74LS49 is smaller in size and it has a much faster speed which makes it reliable in every kind of device. What is a BCD to 7-Segment Decoder? A BCD to Seven Segment decoder is a combinational logic circuit that accepts a decimal digit in BCD (input) and generates appropriate outputs for the segments to display the input decimal digit. 74LS49 Pinout Pin No. Pin Name Description 1 B BCD input of the IC 2 C BCD input of the IC 3 BI Blanking input 4 D BCD input of the IC 5 A BCD input of the IC 6 e 7 segment output 1 7 GND Ground 8 d 7 segment output 2 9 c 7 segment output 3 10 b 7 segment output 4 11 a 7 segment output 5 12 g 7 segment output 6 13 f 7 segment output 7 14 Vcc Chip Supply Voltage 74LS49 Key Features & Specifications Function: Decoder, Demultiplexer Technology Family: LS VCC (Min): 4.75V VCC (Max): 5.25V Channels: 1 Voltage (Nom): 5V Max Frequency at normal Voltage: 35Mhz tpd at normal Voltage (Max): 100 nsec Configuration: 4:7 Operating temperature range (C): -20°C to 70°C 7449 Datasheet

From the supplier's page.