器件名称: 74LV139D
功能描述: Dual 2-to-4 line decoder/demultiplexer
文件大小: 111.83KB 共12页
简 介:INTEGRATED CIRCUITS
74LV139 Dual 2-to-4 line decoder/demultiplexer
Product specification Supersedes data of 1997 Feb 12 IC24 Data Handbook 1998 Apr 28
Philips Semiconductors
Philips Semiconductors
Product specification
Dual 2-to-4 line decoder/demultiplexer
74LV139
FEATURES
Wide operating voltage: 1.0 to 5.5 V Optimized for low voltage applications: 1.0 to 3.6 V Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, Demultiplexing capability Two independent 2-to-4 decoders Multifunction capability Active LOW mutually exclusive outputs Output capability: standard ICC category: MSI
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns SYMBOL tPHL/tPLH CI CPD PARAMETER Propagation delay nAn to nYn, nE to nYn Input capacitance Power dissipation capacitance per multiplexer Tamb = 25°C Tamb = 25°C
APPLICATIONS
Memory decoding or data-routing Code conversion
DESCRIPTION
The 74LV139 is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC/HCT139. The 74LV139 is a dual 2-to-4 line decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (nA0 and nA1) and providing four mutually exclusive active LOW outputs (nY0 to nY3). Each decoder has an active LOW enable input (nE). When nE is HIGH, every output is forced HIGH. The enable can be used as the data input f……
