74F191SJ

向上/向下二进制计数器，预置和纹波时钟 Up/Down Binary Counter with Preset and Ripple Clock

Counter IC Binary Counter 1 Element 4 Bit Positive Edge 16-SOP

得捷:
BINARY COUNTER

贸泽:
计数器移位寄存器 Up/Down Binary Ctr

Chip1Stop:
Counter Single 4-Bit Async Binary UP/Down 16-Pin SOP-II Rail

罗切斯特:
Counter Single 4-Bit Async Binary UP/Down 16-Pin SOP-II Rail