CD74HC4514ENG4
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Texas Instruments CD74HC4514ENG4

Manufacturer No:
CD74HC4514ENG4
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC DECODER/DEMUX 1X4:16 24DIP
Delivery:
Payment:
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iso45001
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Product Introduction

Overview

The CD74HC4514 is a high-speed silicon gate device produced by Texas Instruments. It combines a 4-bit strobed latch and a 4-to-16 line decoder/demultiplexer. This integrated circuit is designed to operate over a wide temperature range of -55°C to 125°C and supports a supply voltage range from 2V to 6V. The device is particularly useful in applications requiring decoding and demultiplexing functions with the added capability of input latches.

Key Specifications

Parameter Conditions Min Typ Max Unit
Supply Voltage (VCC) 2.0 6.0 V
Operating Temperature Range -55 125 °C
High-Level Input Voltage (VIH) VCC = 4.5V 3.15 4.5 V
Low-Level Input Voltage (VIL) VCC = 4.5V -2.1 1.35 V
Propagation Delay (tPHL, tPLH) CL = 50pF, Select to Outputs 55 69 83 ns
Input Leakage Current (II) VCC = 4.5V 0 0 nA
Output Voltage (VOH) IO = -20 μA, VCC = 4.5V 4.4 4.5 V
Output Voltage (VOL) IO = 20 μA, VCC = 4.5V 0.1 0.1 V

Key Features

  • Multifunction capability: Binary to 1-of-16 decoder and 1-to-16 line demultiplexer
  • Wide operating temperature range: -55°C to 125°C
  • Wide supply voltage range: 2V to 6V
  • High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • Significant power reduction compared to LSTTL logic ICs
  • Ability to drive 10 LSTTL loads
  • Latch enable input (LE) and enable input (E) for flexible operation
  • ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V

Applications

  • Digital multiplexing and demultiplexing
  • Decoder applications where a 4-bit binary input needs to be decoded into one of 16 possible outputs
  • Demultiplexing applications where data needs to be routed to one of 16 possible outputs based on a 4-bit address
  • Cascaded decoder/demultiplexer configurations using the enable input (E) as a chip select

Q & A

  1. What is the operating temperature range of the CD74HC4514?

    The operating temperature range is -55°C to 125°C.

  2. What is the supply voltage range for the CD74HC4514?

    The supply voltage range is from 2V to 6V.

  3. How many LSTTL loads can the CD74HC4514 drive?

    The device can drive up to 10 LSTTL loads.

  4. What is the function of the Latch Enable (LE) input?

    The LE input determines whether the outputs follow changes in the inputs or remain stable at their previous state.

  5. How does the Enable (E) input function in the CD74HC4514?

    The E input enables or inhibits the selection of any output. When E is low, the selected output is enabled; when E is high, all outputs are inhibited.

  6. What are the ESD protection levels for the CD74HC4514?

    The device has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.

  7. Can the CD74HC4514 be used as a demultiplexer?

    Yes, the device can be used as a demultiplexer by using the E input as the data input and the select inputs (A0-A3) as addresses.

  8. How many outputs does the CD74HC4514 have?

    The device has 16 outputs (Q0 to Q15).

  9. What is the propagation delay for the CD74HC4514?

    The propagation delay (tPHL, tPLH) for select to outputs is typically around 69 ns at CL = 50pF and VCC = 4.5V.

  10. Is the CD74HC4514 compatible with TTL logic levels?

    No, the CD74HC4514 is designed for CMOS logic levels. However, the 74HCT4514 version is compatible with TTL logic levels.

Product Attributes

Type:Decoder/Demultiplexer
Circuit:1 x 4:16
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:Through Hole
Package / Case:24-DIP (0.300", 7.62mm)
Supplier Device Package:24-PDIP
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Similar Products

Part Number CD74HC4514ENG4 CD74HC4514EG4
Manufacturer Texas Instruments Texas Instruments
Product Status Obsolete Obsolete
Type Decoder/Demultiplexer Decoder/Demultiplexer
Circuit 1 x 4:16 1 x 4:16
Independent Circuits 1 1
Current - Output High, Low 5.2mA, 5.2mA 5.2mA, 5.2mA
Voltage Supply Source Single Supply Single Supply
Voltage - Supply 2V ~ 6V 2V ~ 6V
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C
Mounting Type Through Hole Through Hole
Package / Case 24-DIP (0.300", 7.62mm) 24-DIP (0.600", 15.24mm)
Supplier Device Package 24-PDIP 24-PDIP

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