Decoder

DM74LS47MX Datasheet – BCD to 7-Segment Decoder / Driver

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Part Number: DM74LS47MX

Function: BCD to 7-Segment Decoder / Driver with Open-Collector Outputs

Package: SOIC 16 Pin Type

Manufacturer: Fairchild Semiconductor

Pinouts:

DM74LS47MX datasheet

 

Description

The DM74LS47, DM74LS47MX accepts four lines of BCD (8421) input data, generates their complements internally and decodes the data with seven AND/OR gates having open-collector outputs to drive indicator segments directly. Each segment output is guaranteed to sink 24 mA in the ON (LOW) state and withstand 15V in the OFF (HIGH) state with a maximum leakage current of 250 µA. Auxiliary inputs provided blanking, lamp test and cascadable zero-suppression functions.

 

Features

1. Open-collector outputs

2. Drive indicator segments directly

3. Cascadable zero-suppression capability

4. Lamp test input

Absolute maximum ratings ( Ta=25°C )

1. Supply Voltage : 7V

2. Input Voltage : 7V

3. Operating Free Air Temperature Range : 0°C to +70°C

4. Storage Temperature Range : -65°C to +150°C

Other data sheets are available within the file: 7447, DM74LS47, DM74LS47M, DM74LS47N

DM74LS47MX Datasheet PDF Download


DM74LS47MX pdf

74HCT138 Datasheet – 3-to-8 Line Decoder / Demultiplexer

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Part Number: 74HCT138

Function: 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

Package: DIP 16, PLCC 20 Pin

Manufacturer: Texas Instruments

Pinouts:
74HCT138 datasheet

Description

The 74HCT138 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

Ordering Information

components

Features

1. Operating voltage range of 4.5 V to 5.5 V

2. Outputs can drive up to 10 LSTTL loads

3. Low power consumption, 80-µA max ICC

Other data sheets are available within the file: 54HCT138FK, 54HCT138J, 54HCT138W, 74HCT138D

74HCT138 Datasheet PDF Download

74HCT138 pdf