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Datasheet HC49 Equivalent ( PDF ) |
| N.º | Número de pieza | Descripción | Fabricantes | |
| 23 | HC49 | Quartz Crystal ISSUE 15; July 2016
Description
Industry standard leaded package Resistance welded, hermetically sealed in an inert atmosphere, glass to metal seals on leads Variants available include but are not limited to:3L = an additional centre mounted leg grounds the can TW = an additional top mounted leg gro |
 IQD |
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| 22 | HC49 | Dual 4-bit Decade Counters HD74HC490
Dual 4-bit Decade Counters
Description
This circuit contains eight master-slave flip-flops and additional gating to implement two individual 4-bit decade counters. Each decade counter has individual clock, clear and set-to-9 inputs. BCD count sequences of any length up to divide-by-100 ma |
 Hitachi Semiconductor |
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| 21 | HC49 | ECM Standard Crystal Standard Crystal
Specifications
HC49
Product HC49 Resistance weld ˿ ˿ ˿ ˿ specify specify Option Code
Parameters
Package: Frequency range: 300kHz ~ 225MHz Calibration tolerance: ±30ppm ±5ppm ~ ±100ppm Te |
 ETC |
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| 20 | HC49-3H | (HC49-3H/-4H) Low Profile Crystal
Low Profile Crystal
HC49-4H & HC49-3H
Specifications
HC49-4H: 3.5mm maximum height HC49-3H: 2.5mm maximum height
Parameters
Package:
2.50 (max) 0.43Ø 12.00 (min) 12.00 (min)
Product
HC49-4H HC49-3H
Option Code
HC49-4H HC49-3H
˿ ˿ ˿ ˿ ˿ ˿ ˿ |
 Golledge Electronics |
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