CD74HCT393E .

产品概述

The CD74HCT393E is a 4-stage high speed CMOS dual ripple-carry Binary Counter. All counter stages are 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.

• Fully static operation
• Buffered inputs
• Common reset
• Negative-edge clocking
• Balanced propagation delay and transition times
• Significant power reduction compared to LSTTL logic ICs
• High noise immunity
• Direct LSTTL input logic compatibility
• CMOS input compatibility
• 10 LSTTL load standard outputs

• 15 LSTTL load bus driver outputs