Overview
The CD74ACT138M96 is a high-performance 3-line to 8-line decoder/demultiplexer designed by Texas Instruments. This component is optimized for high-speed memory-decoding and data-routing applications, particularly where very short propagation-delay times are crucial. It is part of the ACT series, known for its speed comparable to bipolar F, AS, and S types but with significantly reduced power consumption.
The device features three enable inputs to simplify cascading and data reception, making it highly versatile in complex digital systems. It is built using an SCR-latchup-resistant CMOS process and circuit design, ensuring robust operation and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | - |
| Pins | 16 | - |
| Operating Temperature Range | -55 to 125 | °C |
| Supply Voltage Range | 1.5 to 5.5 | V |
| Output Drive Current | ±24 | mA |
| Fanout to F Devices | 15 | - |
| ESD Protection | 2 kV | - |
| Propagation Delay (A, B, C to Any Y) at VCC = 5V | 2.8 to 11 | ns |
| Junction-to-Ambient Thermal Resistance (SOIC) | 106.6 | °C/W |
Key Features
- Inputs are TTL-voltage compatible.
- Speed of bipolar F, AS, and S types with significantly reduced power consumption.
- Designed specifically for high-speed memory decoders and data-transmission systems.
- Incorporate three enable inputs to simplify cascading and/or data reception.
- Balanced propagation delays.
- ±24mA output drive current.
- Fanout to 15 F devices.
- SCR-latchup-resistant CMOS process and circuit design.
- Exceeds 2kV ESD protection per MIL-STD-883, method 3015.
Applications
The CD74ACT138M96 is primarily used in high-performance memory systems where fast decoding and data routing are essential. It can be employed in various applications such as:
- High-speed memory decoders to minimize system decoding delays.
- Data-transmission systems requiring fast and reliable data routing.
- Cascaded decoding schemes for larger address spaces (e.g., 24-bit and 32-bit decoding schemes).
- General digital logic circuits where fast propagation times and low power consumption are critical.
Q & A
- What is the primary function of the CD74ACT138M96?
The CD74ACT138M96 is a 3-line to 8-line decoder/demultiplexer designed for high-performance memory-decoding and data-routing applications.
- What are the operating temperature ranges for the CD74ACT138M96?
The operating temperature range is -55°C to 125°C.
- What is the supply voltage range for this component?
The supply voltage range is 1.5V to 5.5V.
- How many enable inputs does the CD74ACT138M96 have?
The device has three enable inputs.
- What is the output drive current of the CD74ACT138M96?
The output drive current is ±24mA.
- What is the ESD protection level of the CD74ACT138M96?
The device exceeds 2kV ESD protection per MIL-STD-883, method 3015.
- What are the typical propagation delays for the CD74ACT138M96 at VCC = 5V?
The propagation delays range from 2.8ns to 11ns.
- What types of packages are available for the CD74ACT138M96?
The component is available in SOIC (D), PDIP (N), TSSOP (PW), and WQFN (BQB) packages.
- How many pins does the SOIC package of the CD74ACT138M96 have?
The SOIC package has 16 pins.
- What is the junction-to-ambient thermal resistance for the SOIC package?
The junction-to-ambient thermal resistance for the SOIC package is 106.6°C/W.
