芯片 74HC CMOS逻辑器件 触发类型: D 传播延迟时间: 14ns 电源电压最小值: 2V 电源电压最大值: 6V 封装类型: SOIC 针脚数: 20 频率: 123MHz 输出电流: 7.8mA 触发类型: 上升沿 芯片输出类型: 三态 工作温度最小值: -40°C 工作温度最高值: 125°C MSL: MSL 1 -无限制 SVHC高度关注物质: No SVHC 20-Jun-2013 器件标号: 74 工作温度范围: -40°C 至 +125°C 电源电压: 5V 电源电压范围: 2V 至 6V 芯片标号: 74HC574 表面安装器件: SMD 输入数: 1 逻辑芯片功能: 上升沿有效八D触发器（三态） 逻辑芯片系列: HC 门电路数: 8
The 74HC574D is a 8-bit positive-edge triggered D-type Flip-flop with 3-state outputs. The device features a clock and OE\ inputs. The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the low-to-high clock transition. A high on OE\ causes the outputs to assume a high-impedance OFF-state. Operation of the OE\ input does not affect the state of the flip-flops. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.