Data sheet acquired from Harris Semiconductor
DescriptionThe ’HC21 and CD74HCT21 logic gates utilize silicon gate CMOS technology to achieve operating speeds similar to LSTTLgates with the low power consumption of standard CMOS integrated circuits. All devices have the ability to drive 10 LSTTL loads.The HCT logic family is functionally pin compatible with the standard LS logic family.
Feature
- Buffered Inputs
- Typical Propagation Delay: 9ns at VCC = 5V, CL = 15pF, TA = 25°C
- Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . 15 LSTTL Loads
- Wide Operating Temperature Range . . . -55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il1μA at VOL, VOH
Data sheet acquired from Harris Semiconductor
DescriptionThe ’HC21 and CD74HCT21 logic gates utilize silicon gate CMOS technology to achieve operating speeds similar to LSTTLgates with the low power consumption of standard CMOS integrated circuits. All devices have the ability to drive 10 LSTTL loads.The HCT logic family is functionally pin compatible with the standard LS logic family.
