四与或选择门 Quad AND-OR Select Gate
General Description
The CD4019BC is a complementary MOS quad AND-OR select gate. Low power and high noise margin over a wide voltage range is possible through implementation of N- and P-channel enhancement mode transistors. These comple mentary MOS CMOS transistors provide the building blocks for the 4 “AND-OR select” gate configurations, each consisting of two 2-input AND gates driving a single 2-input OR gate. Selection is accomplished by control bits KA and KB. All inputs are protected against static discharge damage.
Features
■Wide supply voltage range: 3.0V to 15V
■High noise immunity: 0.45 VDDtyp.
■Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS
Applications
• AND-OR select gating
• Shift-right/shift-left registers
• True/complement selection
• AND/OR/EXCLUSIVE-OR selection