HC49中文资料PDF规格书
HC49规格书详情
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 may be implemented with a single HD74HC490. Buffering on each output is provided to ensure that suceptibility to collector communication is reduced significantly. The counters have paralle outputs from each counter state so that submultiples of the input count frequency are available for system timing signals.
Features
• High Speed Operation: tpd (Clock to QA) = 13 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
产品属性
- 产品编号:
HC49U/N-R 2.097152
- 制造商:
MtronPTI
- 类别:
晶体,振荡器,谐振器 > 晶体
- 系列:
HC-49U/N
- 包装:
卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带
- 类型:
MHz 晶体
- 频率稳定性:
±50ppm
- 频率容差:
±30ppm
- 负载电容:
18pF
- 工作模式:
基谐
- 工作温度:
-10°C ~ 70°C
- 安装类型:
表面贴装型
- 封装/外壳:
HC-49 鸥翼
- 大小 / 尺寸:
0.512" 长 x 0.435" 宽(13.00mm x 11.05mm)
- 高度 - 安装(最大值):
0.245"(6.20mm)
- 描述:
HC-49UN CRYSTAL RESONATOR / FUND
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ANY |
2020+ |
NA |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
JYKE |
ROHS+Original |
NA |
24560 |
专业电子元器件供应链/QQ 350053121 /正纳电子 |
询价 | ||
CITIZENA |
NA |
8560 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
EPSON |
193 |
原装正品长期供货,如假包赔包换 徐小姐13714450367 |
询价 | ||||
ILSI |
2022+ |
SOP2 |
810 |
原厂原装,假一罚十 |
询价 | ||
KYOCERA/京瓷 |
09+ |
NA |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
KSS ELECTRONICS LTD |
2023+ |
SMD |
6300 |
安罗世纪电子只做原装正品货 |
询价 | ||
Citizen |
17+ |
原厂原封 |
2000 |
原装正品 |
询价 | ||
Citizen |
23+ |
SMD |
6680 |
全新原装优势 |
询价 | ||
AOJING |
22+ |
DIP-2晶振 |
10000 |
询价 |
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