CD74HC147NSR

高速CMOS逻辑10至4线优先编码器 High-Speed CMOS Logic 10- to 4-Line Priority Encoder

Description

The ’HC147 and CD74HCT147 are high speed silicon-gate CMOS devices and are pin-compatible with low power Schottky TTL LSTTL.

Features

• Buffered Inputs and Outputs

• Typical Propagation Delay: 13ns 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, Il ≤1µA at VOL, VOH