器件名称:
74LV251PWDH
功能描述:
8-input multiplexer 3-State
文件大小:
116.48KB 共12页
简 介:
INTEGRATED CIRCUITS 74LV251 8-input multiplexer (3-State) Product specification Supersedes data of 1997 Apr 10 IC24 Data Handbook 1998 May 20 Philips Semiconductors Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 FEATURES 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, True and complement outputs Both outputs are 3-State for further multiplexer expansion Multifunction capability Permits multiplexing from n-lines to one line Output capability: standard ICC category: MSI QUICK REFERENCE DATA GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns SYMBOL PARAMETER Propagation delay In to Y In to Y Sn to Y Sn to Y Input capacitance Power dissipation capacitance per gate Tamb = 25°C Tamb = 25°C DESCRIPTION The 74LV251 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT251. The 74LV251 is an 8-input multiplexer with 8 binary inputs (I0 to I7), an output enable input (OE) and three select inputs (S0, S1, S2). One of the eight binary inputs is selected by the select inputs and is routed to the outputs (Y, Y). Both outputs are in the high impedance OFF-state (Z) when the output enable input is HIGH, allowing multiplexer expansion by tying the outputs. CONDITIONS CL = 15 pF; VCC = 3.3 V TYPICAL 14 16 19 20 3.5 UNIT tPHL/tPLH n……
