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CD74HC238M96
Texas Instruments
IC DECODER/DEMUX 1X3:8 16SOIC
16476 Pcs New Original In Stock
Decoder/Demultiplexer 1 x 3:8 16-SOIC
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CD74HC238M96
Product Overview
1228843
DiGi Electronics Part Number
CD74HC238M96-DGManufacturer
Texas Instruments
CD74HC238M96
Description
IC DECODER/DEMUX 1X3:8 16SOICInventory
16476 Pcs New Original In Stock
Decoder/Demultiplexer 1 x 3:8 16-SOIC
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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CD74HC238M96 Technical Specifications
Category
Logic, Signal Switches, Multiplexers, Decoders
Packaging
Cut Tape (CT) & Digi-Reel®
Series
74HC
Product Status
Active
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-SOIC (0.154", 3.90mm Width)
Supplier Device Package
16-SOIC
Base Product Number
74HC238
Datasheet & Documents
HTML Datasheet
CD74HC238M96-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
TEXTISCD74HC238M96
CD74HC238M96-DG
-296-24353-1-DG
2156-CD74HC238M96
296-24353-1
296-24353-2
-CD74HC238M96E4
-296-24353-1
-CD74HC238M96E4-NDR
-CD74HC238M96-NDR
-CD74HC238M96G4
296-24353-6
-CD74HC238M96G4-NDR
Standard Package
2,500
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
배송 추적이 매우 상세하고, 고객 지원도 친절해서 계속 사용할 거예요.
грудня 02, 2025
Une expérience d’achat sans stress grâce à leur service client efficace et leurs prix accessibles.
грудня 02, 2025
Ich schätze die klare Struktur der Website und die transparenten Preise bei DiGi Electronics. Absolut empfehlenswert.
грудня 02, 2025
DiGi Electronicsのサポートチームは親切で、問題解決がスムーズでした。
грудня 02, 2025
DiGi’s prices are so attractive that I recommend them to all my friends.
грудня 02, 2025
The support team was patient and accommodating, making sure all my questions were answered after my purchase.
грудня 02, 2025
Their quick shipping and supportive team make handling my tech needs effortless.
грудня 02, 2025
The rapid delivery process complements the high-quality products perfectly.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the CD74HC238M96 in a mixed-voltage system with both 3.3V and 5V logic components?
When integrating the CD74HC238M96 into mixed-voltage systems, ensure all input signals are within its 2V to 6V supply range. While the CD74HC238M96 is compatible with 5V and 3.3V CMOS levels, direct interfacing with 5V outputs when the CD74HC238M96 is powered at 3.3V may exceed its absolute maximum input voltage unless the IO pins are 5V-tolerant—verify the specific TI datasheet for 5V tolerance under VCC=3.3V. Use level shifters or series resistors with clamping diodes if needed to prevent input damage. Always confirm signal integrity across temperature and load variations, especially when driving higher capacitive loads close to its max fan-out.
Can the CD74HC238M96 replace a 74HC138 in a high-temperature automotive application without compromising reliability?
Yes, the CD74HC238M96 can typically replace a 74HC138 in most designs, including high-temperature environments, as both are part of the 74HC family and share the same operating temperature range of -55°C to 125°C. However, note the CD74HC238M96 has latched address inputs (D-type flip-flop), while the 74HC138 uses combinational logic—this means the CD74HC238M96 holds the decoded state until updated, not reacting immediately to input changes. This latching behavior may affect real-time demux performance in fast-switching systems. Evaluate timing requirements carefully before substitution to avoid unintended state retention or response delays.
How does the latch-enable architecture of the CD74HC238M96 impact timing constraints in demultiplexing applications compared to non-latching decoders?
The CD74HC238M96 features built-in D-type latches on the address inputs, meaning address data is stored only on the rising edge of the enable/latch clock (LE). This adds predictability in noisy or asynchronous environments but introduces propagation delay from clock edge to output update (~20–30ns typical). In contrast, non-latched decoders like the 74HC138 respond immediately to input changes. For designs requiring real-time response, ensure the LE signal is synchronized with address stability and avoid glitches during clock transitions. Use proper debouncing or synchronization circuits for LE to prevent unintended latching.
What are the PCB layout best practices to minimize crosstalk and output instability when using the CD74HC238M96 in a high-density surface-mount design?
To reduce crosstalk and ensure stable operation of the CD74HC238M96 in dense layouts, apply solid ground planes beneath the 16-SOIC package and maintain short trace lengths for address and output lines. Use controlled impedance routing if signals switch rapidly near the propagation delay limits. Place a 0.1µF ceramic bypass capacitor as close as possible to the VDD and GND pins to suppress supply noise. Avoid routing high-speed signals parallel to decoder outputs; instead, separate layers or increase spacing. Given its 5.2mA drive strength, minimize trace inductance to prevent ringing on longer lines, especially when switching capacitive loads above 50pF.
Is the CD74HC238M96 suitable for long-term deployment in industrial control systems where extended temperature cycling and vibration are present?
Yes, the CD74HC238M96 is well-suited for industrial environments due to its full operating temperature range (-55°C to 125°C) and robust SOIC package. Its RoHS3 compliance and MSL1 rating (unlimited floor life) support reliability in automated assembly and harsh conditions. However, ensure proper conformal coating and mechanical strain relief on PCB solder joints, especially under vibration. Monitor thermal gradients across the board to avoid localized hotspots exceeding 125°C. Additionally, operate within recommended supply voltage limits (typically 4.5V to 5.5V in industrial settings) to maintain noise margin and signal integrity over time.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
CD74HC238M96 CAD Models
Texas Instruments CD74HC238M96 PCB symbols & footprints
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