Semiconductor Informations
| 74LS49 Hitachi Semiconductor - BCD-to-Seven Segment Decoder Driver(with Open collector outputs) Unit: mm 10.06 10.5 Max 14 8 5.5 1 7 *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 7.80 0.30 1.15 0° 8° + 0.20 1.42 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.70 ± 0.20 0.15 0.12 M Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA Conforms 0.23 g *Dimension including the plating thickness Base material dimension Unit: mm 8.65 9.05 Max 14 8 3.95 1 1.75 Max 7 *0.20 ± 0.05 6.10 |
| 74LS49 Motorola Semiconductors - DUAL DECADE COUNTER 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 Master Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code. Dual Version of SN54 , 74LS490 Individual Asynchronous Clear and Preset to 9 for Each Counter Count Frequency Typically 65 MH- Input |
| 74L74 Dual Positive Edge Triggered D Flip-Flop - National Semiconductor |
| 74LCX00 Low Voltage Quad 2-Input NAND Gate - Fairchild Semiconductor 74LCX00 Low Voltage Quad 2-Input NAND Gate with 5V Tolerant Inputs December 2013 74LCX00 Low Voltage Quad 2-Input NAND Gate with 5V Tolerant Inputs Features - 5V tolerant inputs - 2.3V 3.6V VCC specifications provided - 5.2ns tPD max. (VCC = 3.3V), 10 A ICC max. - Power down high impedance input |