N74F541D,623 NXP

INTEGRATED CIRCUITS 74F540 Octal inverter buffer (3- State) 74F541 Octal buffer (3- State) Product specification 1990 Jan 08 IC15 Data Handbook Philips Semiconductors Product specification Buffers 74F540, 74F541 74F540 Octal Inverter Buffer (3-State) 74F541 Octal Buffer (3-State) FEATURES TYPICAL SUPPLY TYPICAL CURRENT TYPE High impedance NPN base inputs for reduced loading PROPAGATION DELAY (TOTAL) (20A in High and Low states) 74F540 3.5ns 58mA Low power, light bus loading 74F541 5.5ns 55mA Functionally similar to the 74F240 and 74F241 Provides ideal interface and increases fan-out of MOS microprocessors ORDERING INFORMATION Efficient pinout to facilitate PC board layout COMMERCIAL RANGE DESCRIPTION V = 5V 10%, PKG DWG Octal bus interface CC T = 0C to +70C amb 3-State buffer outputs sink 64mA 20-Pin Plastic DIP N74F540, N74F541N SOT146-1 15mA source current 20-Pin Plastic SOL N74F540D, N74F541D SOT163-1 DESCRIPTION The 74F540 and 74F541 are octal buffers that are ideal for driving bus lines or buffer memory address registers. The outputs are capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The devices feature input and outputs on opposite sides of the package to facilitate printed circuit board layout. INPUT AND OUTPUT LOADING AND FAN-OUT TABLE 74F(U.L.) LOAD VALUE PINS DESCRIPTION HIGH/LOW HIGH/LOW I0I7 Data inputs 1.0/0.033 20A/20A OE0, OE1 3-State output enable inputs (active Low) 1.0/0.033 20A/20A Y0 - Y7 Data outputs (74F541) 750/106.7 15mA/64mA Y0 - Y7 Data outputs (74F540) 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 CONFIGURATION 74F540 PIN CONFIGURATION 74F541 OE0 V 1 20 CC OE0 V 1 20 CC I0 OE1 2 19 I0 OE1 2 19 I1 Y0 3 18 I1 Y0 3 18 I2 Y1 4 17 I2 Y1 4 17 I3 Y2 5 16 I3 Y2 5 16 I4 Y3 6 15 I4 Y3 6 15 I5 Y4 7 14 I5 Y4 7 14 I6 Y5 8 13 I6 Y5 8 13 I7 9 12 Y6 I7 9 12 Y6 Y7 GND 10 11 Y7 GND 10 11 SF01060 SF01021 2 1990 Jan 08 8530068 98494