2023/10/17 11:35:47
198
1 Features
? Fully static operation
? Buffered inputs
? Common reset
? Negative-edge clocking
? Fanout (over temperature range):
– Standard outputs 10 LSTTL loads
– Bus driver outputs 15 LSTTL loads
? Wide operating temperature range: –55℃ to 125℃
? Balanced propagation delay and transition times
? Significant power reduction compared to LSTTL Logic ICs
? HC types
– 2 V to 6 V operation
– High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V
? HCT types
– 4.5 V to 5.5 V operation
– Direct LSTTL input logic compatibility, VIL = 0.8 V (max), VIH = 2 V (min)
– CMOS input compatibility, II ≤ 1 μA at VOL, VOH
2 Description
The ’HC393 and ’HCT393 are 4-stage ripple-carry binary counters. All counter stages are primaryoperative flip-flops. The state of the stage advances one count on the negative transition of each clock pulse; a high voltage level on the MR line resets all counters to their zero state. All inputs and outputs are buffered
热门型号
热门资讯
20万现货SKU
品类不断扩充
科技智能大仓储
4小时快速交货
仅从原厂和代理商进货
每一颗料均可原厂追溯
明码标价节省时间成本
一站式采购正品元器件
工商网监