SN74HCT138 Overview
The ’HCT138 devices are designed for highperformance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical...
SN74HCT138 Key Features
- Operating voltage range of 4.5 V to 5.5 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 80-µA max ICC
- Typical tpd = 17 ns
- ±4-mA output drive at 5 V
- Low input current of 1 µA max
- Inputs are TTL-Voltage patible
- Designed specifically for high-speed memory
- Incorporate three enable inputs to simplify