TLC548和TLC549是以8位开关电容逐次逼近A/D转换器为基础而构造的CMOS A/D转换器。它们设

计成能通过3态数据输出和模拟输入与微处理器或外围设备串行接口。TLC548和TLC549仅用输入/输出时

钟（I/O CLOCK） 和芯片选择（CS） 输入作数据控制。TLC548的最高I/O CLOCK输入频率为2.048MHz，

而TLC549的I/O CLOCK输入频率最高可达1.1MHz。 有关与大多数通用微处理器接口的详细资料已由工厂

准备好，可供使用。-TLC548 and TLC549 are 8-bit switched capacitor successive approximation A/D converter and the basic structure for CMOS A/D converter. They are designed through the 3-state data output and analog input and a microprocessor or peripheral device serial interface. TLC548 and TLC549 only input/output clock (I/O CLOCK) and chip select (CS) input for data control. TLC548 maximum I/O CLOCK input frequency of 2.048MHz, and TLC549 the I/O CLOCK input frequency up to 1.1MHz. With the most common microprocessor interface details from the factory ready availability.