SN74LS669D

同步4位加/减计数器 SYNCHRONOUS 4-BIT UP/DOWN COUNTERS

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

得捷:
IC SYNC UP/DWN BIN COUNTR 16SOIC

艾睿:
Counter Single 4-Bit Sync Binary UP/Down 16-Pin SOIC Tube

安富利:
Counter Single 4-Bit Sync Binary UP/Down 16-Pin SOIC Tube

AMEYA360:
IC SYNC UP/DWN BIN COUNTR 16SOIC