CD74ACT139M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74ACT139M is a dual 2-line to 4-line decoder/demultiplexer in the high-speed ACT logic family, housed in a 16-pin SOIC. Each section includes an active-low enable input and delivers 24 mA output sink current with a 50 pF load rating. In stock at global distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74ACT139M Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1453(MOQ 1)
- 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 CD74ACT139M?
- Dual 2-to-4 line decoder with independent active-low enable per section for flexible address decoding
- ACT-family 24 mA output sink current ensures robust line driving at 4.5 V to 5.5 V supply
- 16-pin SOIC package integrates two complete decoders, halving component count versus single-section parts
What is CD74ACT139M used for?
The CD74ACT139M is used in memory address decoding and chip-select generation for SRAM, Flash, and peripheral controllers in 5 V microprocessor systems. Its dual 2-to-4 decoder structure lets a single part decode two independent 2-bit address fields, reducing component count in address-mapped bus designs. The 24 mA output drive and ACT-speed performance also make it suitable for high-speed demultiplexing in programmable logic and FPGA expansion boards.
What are the specifications of CD74ACT139M?
| YTEOL | 0 |
| Additional Feature | 2 ENABLE INPUTS |
| Family | ACT |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | 2-LINE TO 4-LINE DECODER |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| 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 | 10.5ns |
| Propagation Delay (tpd) | 11.5ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| 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 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Where can I find the CD74ACT139M datasheet?
CD74ACT139M Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74ACT139M?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the dual-section architecture of CD74ACT139M reduce BOM count in a 5 V address decode design?
The CD74ACT139M integrates two independent 2-line to 4-line decoders in a single 16-pin SOIC, each with its own active-low enable and 24 mA sink-capable outputs. A design that previously required two separate single-section decoder ICs can now use one CD74ACT139M, cutting component count and PCB footprint in half while maintaining the same decode capability.
What output drive strength does CD74ACT139M provide, and how does that affect its use in bus-connected systems?
Each output of the CD74ACT139M can sink up to 24 mA at the output low level, which is strong enough to directly drive TTL-compatible chip-select inputs and short bus traces with a 50 pF load capacitance. This eliminates the need for external buffer stages in most 5 V PCB designs where the decoder directly controls memory or I/O peripheral enables.
When should a designer choose CD74ACT139M over a CD74HCT139 for the same 5 V decoder function?
CD74ACT139M is the better choice when the design demands faster propagation delays and higher switching speeds characteristic of the ACT logic family, which is faster than HCT at equivalent 5 V supply. Both parts share the same 16-pin SOIC footprint and 24 mA drive level, but ACT logic achieves superior performance at 50 pF loads and tighter timing budgets, making CD74ACT139M preferable in high-frequency clocked address decode paths.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1479 | $0.15 |
| 10+ | $0.1453 | $1.45 |
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