CD74HC138MIn StockTexas Instruments
CD74HC138M is a high-speed CMOS 3-line to 8-line decoder/demultiplexer in SSOP-16 package. Features 3 enable inputs, active-low outputs, and 50pF load capacitance for reliable logic decoding. From $0.36, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC138M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3600(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-line to 8-line decoder/demultiplexer with active-low outputs for address decoding and data routing
- High-speed HC/UH CMOS logic family with standard input conditioning and low power consumption
- SSOP-16 (R-PDSO-G16) compact package with 50pF load capacitance supporting up to 4mA output current
- Single function design with 3 enable inputs for flexible enable/disable control in complex logic systems
- RoHS compliant (JESD-609 e4) for use in modern environmentally-conscious electronic designs
Applications
The CD74HC138M is widely used in address decoding for microprocessor and microcontroller systems, enabling efficient memory and peripheral selection. It serves as a demultiplexer in data routing circuits, industrial control systems, and programmable logic applications. The device is also commonly employed in display drivers, LED matrix controllers, and communication equipment where reliable 1-of-8 line selection is required.
Specifications
| YTEOL | 0 |
| Family | HC/UH |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | 3-LINE TO 8-LINE DECODER |
| Max I(ol) | 0.004A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 30ns |
| Propagation Delay (tpd) | 225ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## CD74HC138M Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC138M:
suggested
Frequently Asked Questions
What is the CD74HC138M and what logic function does it perform?
The CD74HC138M is a high-speed CMOS 3-line to 8-line decoder/demultiplexer from Texas Instruments. It accepts a 3-bit binary address on its inputs and activates one of 8 active-low outputs corresponding to the binary value, making it ideal for address decoding and data demultiplexing applications.
What are the key electrical specifications of the CD74HC138M?
The CD74HC138M features a maximum output low current (I(ol)) of 4mA, a load capacitance (CL) of 50pF, and 8 decoded output bits in a single function package. It operates in the HC/UH CMOS family with standard input conditioning, housed in an SSOP-16 (R-PDSO-G16) package with JESD-609 e4 RoHS compliance.
What are typical applications for the CD74HC138M?
The CD74HC138M is commonly used in microprocessor address decoding, memory chip select generation, peripheral device selection, and data demultiplexing circuits. It is also suitable for industrial control systems, LED matrix drivers, display controllers, and any application requiring reliable 1-of-8 line selection from a 3-bit binary input.
What package does the CD74HC138M come in and are there alternative package options?
The CD74HC138M comes in an SSOP-16 small outline package (16-pin). Texas Instruments also offers the CD74HC138 in other packages including SOIC-16 (CD74HC138E for DIP) and other variants, giving designers flexibility for different PCB layouts and space constraints.
Where can I buy the CD74HC138M and what is the price?
The CD74HC138M is available from authorized distributors worldwide starting from $0.36 per unit. FindMyChip provides global sourcing with competitive pricing, and the part is typically in stock for immediate shipment with worldwide shipping options available.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6000 | $0.60 |
| 8+ | $0.5695 | $4.56 |
| 9+ | $0.4800 | $4.32 |
| 36+ | $0.4556 | $16.40 |
| 112+ | $0.4500 | $50.40 |
| 445+ | $0.3600 | $160.20 |
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