INTEGRATED CIRCUITS 74F125, 74F126 Quad buffers (3-State) Product specification 1989 March 28 IC15 Data Handbook Philips Semiconductors Product specification Quad buffers (3-State) 74F125, 74F126 FEATURE ORDERING INFORMATION High impedance NPN base inputs for reduced loading COMMERCIAL RANGE V = 5V 10%, (20A in High and Low states) DESCRIPTION PKG DWG CC T = 0C to +70C amb 14-pin plastic DIP N74F125N, N74F126N SOT27-1 TYPICAL TYPICAL PROPAGATION SUPPLY CURRENT TYPE 14-pin plastic SO N74F125D, N74F126D SOT108-1 DELAY (TOTAL) 74F125 5.0ns 23mA 74F126 5.0ns 26mA INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW D0D3 Data inputs 1.0/0.033 20A/20A OE0OE3 Output Enable inputs (active Low), 74F125 1.0/0.033 20A/20A OE0OE3 Output Enable inputs (active High), 74F126 1.0/0.033 20A/20A Q0Q3 Data outputs 750/106.7 15mA/64mA NOTE: One (1.0) FAST unit load is defined as: 20A in the High state and 0.6mA in the Low state. PIN CONFIGURATIONS 74F125 74F126 OE0 1 14 OE0 1 14 V V CC CC D0 2 13 OE3 D0 2 13 OE3 Q0 3 12 D3 Q0 3 12 D3 OE1 4 11 Q3 OE1 4 11 Q3 D1 5 10 OE2 D1 5 10 OE2 Q1 6 9 D2 Q1 6 9 D2 GND 7 8 Q2 GND 7 8 Q2 SF00117 SF00118 LOGIC SYMBOLS 74F126 74F125 25 912 25 912 D0 D1 D2 D3 D0 D1 D2 D3 1 OE0 1 OE0 4 OE1 4 OE1 10 OE2 10 OE2 13 OE3 13 OE3 Q1 Q1 Q0 Q0 Q1 Q1 Q0 Q0 36 811 V = Pin 14 36 811 CC V = Pin 14 CC GND = Pin 7 GND = Pin 7 SF00119 SF00120 2 March 28, 1989 8530341 96146