TI CD74HC574M

The 'HC374, 'HCT374, 'HC574, and 'HCT574 are octal D-type flip-flops with three-state outputs, capable of driving 15 LSTTL loads. Eight edge-triggered flip-flops input data into their registers when the clock (CP) transitions from low to high. The output enable (OE) controls the three-state outputs and is independent of register operation. When OE is high, the outputs are in a high-impedance state. The 374 and 574 have the same functionality, differing only in pin arrangement.

• Buffered input with universal tri-state output enable control
• Tri-state outputs
• Bus driving capability
• Wide operating temperature range: -55°C to 125°C
• Balanced propagation delay and transition time
• Significantly reduced power consumption compared to LSTTL logic ICs
• HC type: 2V to 6V operating voltage
• High noise immunity: N1L = 30%, NIH = 30% of VCC at VCC = 5V
• HCT type: 4.5V to 5.5V operating voltage
• Direct LSTTL input logic compatibility, VIL = 0.8V (max), VIH = 2V (min)
• CMOS input compatibility, II ≤ 1μA at VOL, VOH