74ACT11139PWRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
74ACT11139PWRG4 is a dual 2-to-4 line decoder and demultiplexer IC from Texas Instruments ACT logic family, providing two independent inverting 1-of-4 decode sections with 24 mA output drive in a 16-pin TSSOP package. Each section has an active-low enable and supports 50 pF load capacitance at 5 V. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- 74ACT11139PWRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74ACT11139PWRG4?
- Dual independent 2-to-4 inverting decoder/demultiplexer sections with active-low enable, allowing independent control of two 4-output buses in a single 16-pin TSSOP
- 24 mA output sink current (I_OL) in the ACT family enables direct drive of LEDs, relay coils, or bus loads without external buffer stages
- Center VCC/GND pin placement improves power supply decoupling and reduces ground bounce on fast ACT-family switching transitions at 50 pF load
What is 74ACT11139PWRG4 used for?
The 74ACT11139PWRG4 is used in address decoding circuits for memory and peripheral chip-select generation, where a 2-bit address bus must activate one of four devices at a time. Its dual-section architecture allows a single IC to simultaneously decode two independent 2-bit fields, reducing logic depth in FPGA glue-logic designs and microprocessor bus expansion boards. The TSSOP-16 form factor and ACT-family speed also suit high-density backplane multiplexing and industrial I/O expander applications.
What are the specifications of 74ACT11139PWRG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | CENTER VCC/GND PINS |
| 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 Functions | 2 |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Prop. Delay@Nom-Sup | 8.5ns |
| Propagation Delay (tpd) | 8.5ns |
| 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 | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 |
Where can I find the 74ACT11139PWRG4 datasheet?
74ACT11139PWRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74ACT11139PWRG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the dual-section architecture of the 74ACT11139PWRG4 reduce IC count in a memory chip-select decoder design?
With two independent 2-to-4 decoder sections in a single 16-pin TSSOP package, the 74ACT11139PWRG4 can decode 8 chip-select outputs from two 2-bit address fields using only 1 IC. A single-section decoder would require 2 separate packages for the same task, doubling the IC count and board area while adding inter-IC routing delay that degrades timing margins.
What output drive strength does the 74ACT11139PWRG4 provide, and can it directly drive opto-isolator inputs without a buffer?
The 74ACT11139PWRG4 sinks up to 24 mA at each active-low output in the ACT logic family, sufficient to drive most opto-isolator LED inputs rated at 10 mA to 16 mA directly. This eliminates the need for discrete current-limiting transistors on each of the 4 decoded outputs, simplifying isolation barrier circuits in industrial I/O and relay-driver applications.
Why is the center VCC/GND pin placement feature of the 74ACT11139PWRG4 significant for high-speed decoding applications?
ACT-family outputs switch in under 5 ns, generating fast current transients that can induce ground bounce if the power supply loop inductance is high. The center VCC/GND pins on the 74ACT11139PWRG4 allow a 100 nF decoupling capacitor to be placed directly between adjacent power pads at the IC body, minimizing the loop area and suppressing voltage spikes that could cause false decoding glitches at 50 pF bus loads.
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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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