======================================================================== 74F64 4-2-3-2-INPUT AND-OR-INVERT GATE ======================================================================== Family: Fairchild FAST (Advanced Schottky TTL) Source: 1980 Fairchild FAST Data Book, page 4-11 Status: PRELIMINARY -- the data sheet page carries a "Preliminary" watermark. Ratings: Vcc = +5.0 V +/-5%, TA = 0 to +70 deg C DESCRIPTION ----------- The 74F64 is a single AND-OR-Invert gate with four AND groups of 4, 2, 3 and 2 inputs respectively, whose outputs are OR-ed and inverted to produce one output. Logic function: Z = /[(A*B*C*D) + (E*F) + (G*H*I) + (J*K)] CONNECTION DIAGRAM (14-pin DIP) ------------------------------- Pin Function Pin Function --- ------------------- --- ------------------- 1 A 4-input group 14 Vcc 2 E 2-input group 13 D 4-input group 3 F 2-input group 12 C 4-input group 4 G 3-input group 11 B 4-input group 5 H 3-input group 10 K 2-input group 6 I 3-input group 9 J 2-input group 7 GND 8 Z output Group membership traced from the connection diagram: AND group Width Pins --------- ----- ------------- A*B*C*D 4 1, 11, 12, 13 E*F 2 2, 3 G*H*I 3 4, 5, 6 J*K 2 9, 10 TRUTH TABLE ----------- The output Z is LOW when ANY AND group has all of its inputs HIGH; otherwise Z is HIGH. Condition Z -------------- - A*B*C*D = H L E*F = H L G*H*I = H L J*K = H L all groups L H H = HIGH voltage level; L = LOW voltage level. INPUT LOADING / FAN-OUT ----------------------- Pin Names Description U.L. HIGH/LOW ----------- ------------- ------------- Inputs 0.5 / 0.375 Outputs 25 / 12.5 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE --------------------------------------------------- Symbol Parameter Min Typ Max Units Conditions ------ -------------------- --- --- ---- ----- --------------------- ICCH Power Supply Current 2.8 mA VIN = Gnd, Vcc = Max ICCL Power Supply Current 4.7 mA (1), Vcc = Max (1) ICCL is measured with all inputs of one gate open and remaining inputs grounded. AC CHARACTERISTICS ------------------ Symbol Parameter CL Min Typ Max Units ------ --------------- ----- --- --- --- ----- tPLH Propagation Dly 15 pF 1.5 3.6 4.8 ns tPLH Propagation Dly 50 pF 2.0 -- 7.0 ns tPHL Propagation Dly 15 pF 1.5 2.8 3.8 ns tPHL Propagation Dly 50 pF 2.0 -- 5.5 ns