Latches & Registers | MC14549B
概览
MC14549B 和 MC14559B 逐次求近寄存器为 8 位寄存器，提供逐次求近模拟-数字转换系统所需的所有数字控制和存储。这些零件差别在于仅一个控制输入。MC14549B 上的主重置 (MR) 均在需要 8 位以上时的级联模式下是必需的。MC14559B 的前馈 (FF) 用于寄存器缩短，此时在不到八个周期之后需要转换结束 (EOC)。MC14549B 和 MC14559B 的应用包括模拟-数字转换，带串行和并行输出。
- Totally Synchronous Operation
- All Outputs Buffered
- Single Supply Operation
- Serial Output
- Retriggerable
- Compatible with a Variety of Digital and Analog Systems such as the MC1408 8-Bit D/A Converter
- All Control Inputs Positive-Edge Triggered
- Supply Voltage Range = 3.0 Vdc to 18 Vdc
- Capable of Driving 2 Low-Power TTL Loads, 1 Low-Power Schottky TTL Load or 2 HTL Loads Over the Rated Temperature Range
- Chip Complexity: 488 FETs or 122 Equivalent Gates
- Pb-Free Packages are Available
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