CD74HC238PW
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Texas Instruments CD74HC238PW

Manufacturer No:
CD74HC238PW
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC DECODER/DEMUX 1X3:8 16TSSOP
Delivery:
Payment:
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Product Introduction

Overview

The CD74HC238PW is a high-speed CMOS logic 3-to-8 line decoder/demultiplexer produced by Texas Instruments. This device is well-suited for memory address decoding or data routing applications. It contains a single 3:8 decoder and features three address select inputs (A2, A1, and A0) and three strobe inputs (G2, G1, and G0) to simplify cascading and facilitate demultiplexing. The outputs of the CD74HC238 are normally high when selected, making it an inverting decoder/demultiplexer.

Key Specifications

Parameter Value
Logic Type Decoder / Demultiplexer
No. of Outputs 8
Supply Voltage Min 2V
Supply Voltage Max 6V
Logic Case Style TSSOP
No. of Pins 16
Operating Temperature Min -55°C
Operating Temperature Max 125°C
Package Type TSSOP (Thin Shrink Small Outline Package)
Package Size 5.00 mm × 4.40 mm
RoHS Compliant Yes

Key Features

  • Select one of eight data outputs: Active high for '238.
  • Three address select inputs (A2, A1, and A0).
  • Three strobe inputs (G2, G1, and G0) to simplify cascading and facilitate demultiplexing.
  • Outputs are normally high when selected.
  • High-speed CMOS logic for efficient operation.
  • Suitable for memory address decoding or data routing applications.

Applications

  • Memory address decoding.
  • Data routing applications.
  • Cascading and demultiplexing in digital circuits.
  • General-purpose decoding and demultiplexing in various electronic systems.

Q & A

  1. What is the primary function of the CD74HC238PW?

    The primary function of the CD74HC238PW is to act as a 3-to-8 line decoder/demultiplexer.

  2. How many address select inputs does the CD74HC238PW have?

    The CD74HC238PW has three address select inputs (A2, A1, and A0).

  3. What is the role of the strobe inputs in the CD74HC238PW?

    The strobe inputs (G2, G1, and G0) are used to simplify cascading and facilitate demultiplexing. When any strobe input is active, all outputs are forced into the low state for the '238 function.

  4. What is the typical output state of the CD74HC238PW when an output is selected?

    The outputs of the CD74HC238PW are normally high when selected.

  5. What is the operating voltage range of the CD74HC238PW?

    The operating voltage range of the CD74HC238PW is from 2V to 6V.

  6. What is the package type of the CD74HC238PW?

    The CD74HC238PW comes in a TSSOP (Thin Shrink Small Outline Package) with 16 pins.

  7. Is the CD74HC238PW RoHS compliant?

    Yes, the CD74HC238PW is RoHS compliant.

  8. What are the typical applications of the CD74HC238PW?

    The CD74HC238PW is typically used in memory address decoding, data routing applications, and general-purpose decoding and demultiplexing in digital circuits.

  9. What is the operating temperature range of the CD74HC238PW?

    The operating temperature range of the CD74HC238PW is from -55°C to 125°C.

  10. How does the CD74HC238PW differ from the CD74HC138?

    The CD74HC238PW has outputs that are normally high when selected, whereas the CD74HC138 has outputs that are normally low when selected.

Product Attributes

Type:Decoder/Demultiplexer
Circuit:1 x 3:8
Independent Circuits:1
Current - Output High, Low:5.2mA, 5.2mA
Voltage Supply Source:Single Supply
Voltage - Supply:2V ~ 6V
Operating Temperature:-55°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:16-TSSOP
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Similar Products

Part Number CD74HC238PW CD74HCT238PW CD74HC238PWR CD74HC238PWT CD74HC237PW
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Obsolete
Type Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer
Circuit 1 x 3:8 1 x 3:8 1 x 3:8 1 x 3:8 1 x 3:8
Independent Circuits 1 1 1 1 1
Current - Output High, Low 5.2mA, 5.2mA 4mA, 4mA 5.2mA, 5.2mA 5.2mA, 5.2mA 5.2mA, 5.2mA
Voltage Supply Source Single Supply Single Supply Single Supply Single Supply Single Supply
Voltage - Supply 2V ~ 6V 4.5V ~ 5.5V 2V ~ 6V 2V ~ 6V 2V ~ 6V
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 16-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 16-TSSOP 16-TSSOP 16-TSSOP 16-TSSOP 16-TSSOP

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