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TC74AC138FN The Toshiba TC74AC138FN is a high-speed 3-to-8 line decoder. It features low power dissipation and high noise immunity, making it suitable for various digital logic applications.
Mfr Part #:

TC74AC138FN

Available from 1 distributors
Mfr Name: Toshiba
Toshiba
The Toshiba TC74AC138FN is a high-speed 3-to-8 line decoder. It features low power dissipation and high noise immunity, making it suitable for various digital logic applications.
✓ Total Stock: 200,000 pcs
$ Price Range: $1.27

TC74AC138FN Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
200,000 pcs
On Request
200000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TC74AC138FN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Input Voltage
Lead Spacing
Lead Style
Output Current
Output Voltage
Propagation Delay
Quiescent Current
Storage Temperature
Supply Voltage
Weight
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TC74AC138FN Description

Short technical summary and product information.

The Toshiba TC74AC138FN is an advanced high-speed CMOS 3-to-8 line decoder fabricated with silicon gate and double-layer metal wiring C2MOS technology. It achieves high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

 

When the device is enabled, three binary select inputs (A, B, and C) determine which one of the outputs (0Y-7Y) will go low. Decoding is inhibited, and all outputs go high when the enable input G1 is held low or either A2G or 2BG is held high. The G1, A2G, and 2BG inputs are provided for cascade connection and use as an address decoder for memory systems.

 

Key electrical characteristics include a propagation delay of 5.9 ns (typical) at VCC = 5V, a low quiescent current of 8 µA (maximum) at 25°C, and a wide operating voltage range from 2V to 5.5V. The device offers high noise immunity and symmetrical output impedance, capable of driving 50 Ω transmission lines.

 

The TC74AC138FN is available in a 16-SOIC package. All inputs are equipped with protection circuits against static discharge or transient excess voltage.

TC74AC138FN Quick Information

Product Type: 3-to-8 Line Decoder
Series: 74AC138
Canonical Name: TC74AC138FN 3-to-8 Line Decoder
Subcategory: 3-to-8 Line Decoder

TC74AC138FN Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TC74AC138FN Estimated Pricing

Qty Low High
1+ $1.27 $1.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

TC74AC138FN Features

  • High-speed 3-to-8 line decoder.
  • Low power dissipation CMOS technology.
  • Fast propagation delay of 5.9 ns.
  • Wide operating voltage range of 2V to 5.5V.
  • High noise immunity and symmetrical output.

TC74AC138FN Applications

  • Address decoding for memory systems.
  • Cascade connection for larger decoders.
  • Digital logic signal routing.
  • Control signal generation.

TC74AC138FN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the TC74AC138FN?

2 V to 5.5 V.

What is the typical propagation delay of the TC74AC138FN?

5.9 ns at VCC = 5 V.

What is the maximum quiescent current?

8 µA at Ta = 25°C.

What is the minimum output current the TC74AC138FN can drive?

24 mA for both IOH and IOL.

What is the package type?

16-SOIC (0.300).

What is the storage temperature range?

-65 °C to 150 °C.

What is the maximum power dissipation for the SOP/TSSOP package?

180 mW.

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