SNx4HC573A 器件是八路透明 D 类锁存器,具有专门设计用于驱动高容性或较低阻抗负载的三态输出。它们尤其适用于实现缓冲寄存器、I/O 端口、双向总线驱动器和工作寄存器。
在锁存使能 (LE) 输入为高电平时, Q 输出响应数据 (D) 输入。当 LE 为低电平时,输出被锁存以保留已设置的数据。
| Number of channels | 8 |
| Technology family | HC |
| Supply voltage (min) (V) | 2 |
| Supply voltage (max) (V) | 6 |
| Input type | Standard CMOS |
| Output type | 3-State |
| Clock frequency (max) (MHz) | 28 |
| IOL (max) (mA) | 7.8 |
| IOH (max) (mA) | -7.8 |
| Supply current (max) (µA) | 80 |
| Features | Balanced outputs, Flow-through pinout, High speed (tpd 10-50ns), Positive input clamp diode |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| PDIP (N) | 20 | 228.702 mm² 24.33 x 9.4 |
| SOIC (DW) | 20 | 131.84 mm² 12.8 x 10.3 |
| SSOP (DB) | 20 | 56.16 mm² 7.2 x 7.8 |
| TSSOP (PW) | 20 | 41.6 mm² 6.5 x 6.4 |