MC74F148

MC54/74F148 8-LINE TO 3-LINE PRIORITY ENCODER The MC54/74F148 provides three bits of binary coded output representing the position of the highest order active input, along with an output indicating the presence of any active input. It is easily expanded via input and output enables to provide priority encoding over many bits. Encodes Eight Data Lines in Priority Provides 3-Bit Binary Priority Code Input Enable Capability www.DataSheet4U.com Signals When Data Present on Any Input Cascadable for Priority Encoding of n Bits 8-LINE TO 3-LINE PRIORITY ENCODER FAST™ SHOTTKY TTL CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 EO 15 GS 14 I3 13 I2 12 I1 11 I0 10 A0 9 16 1 J SUFFIX CERAMIC CASE 620-09 16 N SUFFIX PLASTIC CASE 648-08 1 1 I4 2 I5 3 I6 4 I7 5 E1 6 A2 7 A1 8 GND LOGIC DIAGRAM 16 (10) I0 I1 (11) (15) (14) EO GS 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD Ceramic Plastic SOIC I2 I3 I4 (12) (9) (13) A0 LOGIC SYMBOL (1) (7) I5 (2) A1 I0 I1 I2 I3 I4 I5 I6 I7 E1 EO I7 E1 NOTE: This diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 10 11 12 13 1 2 3 4 5 I6 (3) A0 A1 A2 GS (4) (5) (6) A2 15 9 7 6 14 VCC = PIN 16 GND = PIN 8 FAST AND LS TTL DATA 4-59 MC54/74F148 GUARANTEED OPERATING RANGES Symbol VCC TA Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 IOH IOL Output Current — High Output Current — Low 54, 74 54,...