Part # 74LS490 datasheet

Part Manufacturer: Motorola

Motorola

Part Description: 74LS490


Part Details:

SN54/74LS490 DUAL DECADE COUNTER The SN54 / 74LS490 contains a pair of high-speed 4-stage ripple counters. Each half of the SN54 / 74LS490 has individual Clock, Master Reset and Mas-ter Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code. · Dual Version of SN54/74LS490 · DUAL DECADE COUNTER Individual Asynchronous Clear and Preset to 9 for Each Counter · Count Frequency -- Typically 65 MHz · LOW POWER SCHOTTKY Input Clamp Diodes Limit High-Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC CPb MRb Q0b MSb Q Q 1b 2b Q3b 16 15 14 13 12 11 10 9 J SUFFIX CERAMIC CASE 620-09 16 1 N SUFFIX PLASTIC 1 2 3 4 5 6 7 8 CASE 648-08 CP 16 a MRa Q0a MSa Q1a Q2a Q3a GND 1 PIN NAMES LOADING (Note a) D SUFFIX HIGH LOW


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74LS490.pdf Datasheet