CD74HC139EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments CD74HC139EE4 is a dual 2-to-4 line decoder/demultiplexer in HC-family CMOS, offering 5.2 mA output drive and 50 pF load capacity with 2 V to 6 V operation, housed in a 16-pin PDIP package. Available in stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC139EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC139EE4?
- Dual independent 2-to-4 decoder channels in a single 16-pin PDIP package doubles decode capacity versus single-section alternatives without additional board space
- HC-family CMOS with 5.2 mA maximum output sink current enables direct drive of logic loads and indicator LEDs across 2 V to 6 V supply range
- Active-low enable input per section allows cascading multiple CD74HC139 devices to build 3-to-8 or 4-to-16 decoders with no external glue logic
What is CD74HC139EE4 used for?
The CD74HC139EE4 is widely used in memory chip-select decoding, address bus demultiplexing, and I/O port enable generation in microcontroller and FPGA-based systems. Its dual independent sections also suit motor driver enable sequencing, relay bank control, and display segment selection in embedded control boards operating from 3.3 V or 5 V supplies.
What are the specifications of CD74HC139EE4?
| YTEOL | 0 |
| Family | HC/UH |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | 2-LINE TO 4-LINE DECODER |
| Max I(ol) | 0.0052A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 36ns |
| Propagation Delay (tpd) | 220ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Mexico |
Where can I find the CD74HC139EE4 datasheet?
CD74HC139EE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC139EE4?
Compatible alternatives and drop-in replacements for CD74HC139EE4:
Frequently Asked Questions
How many decode outputs does each section of the CD74HC139EE4 provide from a 2-bit input?
Each of the two independent sections in the CD74HC139EE4 decodes a 2-bit binary address into 4 active-low output lines, selecting exactly one output at a time. With both sections active, the device provides 8 individually selectable outputs from 4 total address input bits and 2 enable pins.
Can the CD74HC139EE4 interface directly with a 3.3 V microcontroller GPIO without level shifting?
Yes, the CD74HC139EE4 operates from 2 V to 6 V VCC, so a 3.3 V supply is fully within its specified range. At 3.3 V, the input high threshold is approximately 2.1 V and output sink current reaches 5.2 mA maximum, allowing direct connection to standard 3.3 V microcontroller GPIO pins without level-shifting circuitry.
How can two CD74HC139EE4 devices be cascaded to create a 3-to-8 line decoder?
Connect one section of a first CD74HC139EE4 to decode address bits A1 and A0, generating 4 enable signals. Route each of these 4 enables to the active-low enable input of one section across two additional CD74HC139EE4 devices, each decoding A2 plus one lower bit to produce 8 total outputs. This expansion uses 3 ICs and zero extra glue logic.
What is the pin count and package body width of the CD74HC139EE4, and does it fit standard DIP sockets?
The CD74HC139EE4 uses a 16-pin PDIP package with 2.54 mm (100 mil) pin pitch and a 7.62 mm (300 mil) narrow body width. It fits directly into standard DIP-16 sockets and solderless breadboards, making it the easiest form factor for prototyping 2-to-4 decode functions in lab or classroom environments.
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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.
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