3至8线译码器/多路;反相 3-to-8 line decoder/multiplexer; inverting
General description
The 74LV138 is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC138 and 74HCT138. The 74LV138 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs A0, A1 and A2 and, when enabled, provides eight mutually exclusive active LOW outputs Y0 to Y7.
Features
■ Wide operating voltage: 1.0 V to 5.5 V
■ Optimized for low voltage applications: 1.0 V to 3.6 V
■ Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
■ Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
■ Typical HIGH-level output voltage VOH undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C
■ Demultiplexing capability
■ Multiple input enable for easy expansion
■ Ideal for memory chip select decoding
■ Active LOW mutually exclusive outputs
■ ESD protection:
◆ HBM JESD22-A114E exceeds 2000 V
◆ MM JESD22-A115-A exceeds 200 V
■ Multiple package options
■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C