74系列逻辑芯片/74HC390D
GENERAL DESCRIPTION
The 74HC/HCT390 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL LSTTL. They are specified in compliance with JEDEC standard no. 7A.
FEATURES
• Two BCD decade or bi-quinary counters
• One package can be configured to divide-by-2, 4, 5, 10, 20, 25, 50 or 100
• Two master reset inputs to clear each decade counter individually
• Output capability: standard
• ICC category: MSI