Product Overview: 74AHCT138D by NXP
The 74AHCT138D is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL). Manufactured by NXP Semiconductors, a leader in the electronics industry, this integrated circuit is a 3-to-8 line decoder/demultiplexer featuring three binary select inputs (A0, A1, and A2), an enable input (E), and eight mutually exclusive outputs (Y0 to Y7).
Designed for multiplexing and data-routing applications, the 74AHCT138D stands out for its robust performance and versatility. The device is capable of operating in a wide range of temperatures, making it suitable for a variety of challenging industrial environments. With its advanced CMOS technology, it offers a reduced power consumption compared to traditional TTL devices, which is essential for energy-efficient designs.
Key Features:
- Decodes a 3-bit Address to 8-bit Data
- Wide voltage range: 4.5V to 5.5V
- High noise immunity
- Low power dissipation: ICC = 4 µA (max) at TA = 25°C
- Complies with JEDEC standard no. 7A
- ESD protection:
- HBM JESD22-A114E exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- Latch-up performance exceeds 250 mA per JESD 78, Class II
- Multiple package options
Applications:
The 74AHCT138D is ideal for use in high-performance memory-decoding or data-routing applications, where the selection of multiple target lines from a single input line is required. It is commonly used in:
- Computers and computer peripherals
- Communication systems
- Data multiplexers
- Control systems
- Alarm systems
The device is supplied in a 16-pin plastic SO package, referred to as SO16, which ensures a compact footprint on printed circuit boards. Its lead-free, RoHS-compliant design also makes it an environmentally responsible choice for modern electronic applications.
With its powerful decoding capabilities and energy-efficient operation, the 74AHCT138D from NXP Semiconductors is a reliable and cost-effective solution for designers looking to streamline their digital logic operations.
