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74F723A 数据表(PDF) 2 Page - NXP Semiconductors |
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74F723A 数据表(HTML) 2 Page - NXP Semiconductors |
2 / 14 page Philips Semiconductors Product specification 74F723A/74F723–1/ 74F725A/74F725–1 Multiplexers 74F723A Quad 3-to-1 Data Selector Multiplexer (3-State) 74F723-1 Quad 3-to-1 Data Selector Multiplexer with 30 W Equivalent Output Termination Impedance (3-State) 74F725A Quad 4-to-1 Data Selector Multiplexer 74F725-1 Quad 4-to-1 Data Selector Multiplexer with 30 W Equivalent Output Termination Impedance 2 1990 Dec 13 853-1369 01257 FEATURES for 74F723A/74F723-1 • Consists of four 3-to-1 Multiplexers • High impedance PNP base inputs for reduced loading (20 µA in High and Low states) • Inverting or non-inverting data path capability by an inverting (INV) input • Designed for address multiplexing of dynamic RAM and other applications • Multiple side pins for V CC and GND to reduce lead inductance (improves speed and noise immunity) • 3-State outputs sink 64mA (74F723A only) • 30W termination impedance on each output – 74F723-1 FEATURES for 74F725A/74F725-1 • Consists of four 4-to-1 Multiplexers • High impedance PNP base inputs for reduced loading (20 µA in High and Low states) • Equivalent to two 74F253s without 3-State • Outputs sink 64mA (74F725A only) • 30W termination impedance on each output – 74F725-1 DESCRIPTION The 74F723A/74F723-1 consist of four 3-to-1 multiplexers designed for address multiplexing of dynamic RAMs and other multiplexing applications. Select (S0, S1) inputs control which line is to be selected, as defined in the Function Table for 74F723A/74F723-1. When the invering input (INV) is Low, the input data path is inverted. To improve speed and noise immunity, VCC and GND side pins are used. The 3-State outputs source 15mA and sink 64mA. The 74F723-1 is the same as 74F723A except that it has a 30 W temination impedance on each output to reduce line noise and the 3-State outputs sink 5mA. The 74F725A/74F725-1 consist of four 4-to1 multiplexers designed for general multiplexing purpose. The select (S0, S1) inputs control which line is to be selected, as defined in the Function Table for 74F725A/725-1. The outputs source 15mA and sink 64mA. The 74F725-1 is the same as the 74F725A except that it has a 30 W termination impedance on each output to reduce line noise and the outputs sink 5mA. TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F723A 5.5ns 25mA 74F723-1 7.0ns 26mA 74F725A 5.5ns 20mA 74F725-1 6.5ns 20mA ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ± 10% Tamb = 0° C to +70°C PKG DWG # 20-Pin Plastic Slim N74F723AN, N74F723-1N, SOT222 1 DIP (300 mil) ,, N74F725AN, N74F725-1N SOT222-1 24 Pin Plastic SOL N74F723AD, N74F723-1D, SOT137 1 24-Pin Plastic SOL ,, N74F725AD, N74F725-1D SOT137-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE TYPE PINS DESCRIPTION 74F(U.L.) HIGH/LOW LOAD VALUE HIGH/LOW Dna, Dnb, Dnc Data inputs 1.0/0.066 20 µA/40µA 74F723A/ S0, S1 Select inputs 1.0/0.033 20 µA/20µA 74F723-1 OE Output Enable input 1.0/0.033 20 µA/20µA INV Output inverting input 1.0/0.033 20 µA/20µA 74F723A Q0 - Q3 Data outputs for 74F723A 750/106.7 15mA/64mA 74F723-1 Q0 - Q3 Data outputs for 74F723-1 750/8.33 15mA/5mA 74F725A/ Dna, Dnb, Dnc, Dnd Data inputs 1.0/0.066 20 µA/40µA 74F725-1 S0, S1 Select inputs 1.0/0.033 20 µA/20µA 74F725A Q0 - Q3 Data outputs 750/106.7 15mA/64mA 74F725-1 Q0 - Q3 Data outputs 750/8.33 15mA/5mA NOTE: One (1.0) FAST Unit Load (U.L.) is defined as: 20 µA in the High state and 0.6mA in the Low state. |
类似零件编号 - 74F723A |
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类似说明 - 74F723A |
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