GENERAL DESCRIPTION
Once fired, the output pulses are independent of further transitions of the A and B inputs and are a function of the external timing components CEXT and REXT. Pulse stability will be limited by the accuracy of external timing components. The pulse width is approximately defined by the relationship tW(OUT) ≈ CEXT REXT. For further information and applications, see AN-138. FEATURES
s Wide supply voltage range: s Guaranteed noise margin: s High noise immunity: 4.5V to 15V 1.0V 0.45 VCC (typ.) fan out of 2 driving 74L s Low power TTL compatibility: Ordering Code: Order Number 74MMC221N Package Number N16E Package DESCRIPTION
16-Lead Plastic Dual-in-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Connection Diagrams Timing Component Truth Table Inputs Clear L X X H H A X H X L ↓ B X X L ↑ H Outputs Q L L Q H H Pin Assignments for DIP H = HIGH Level = One HIGH level pulse L = LOW Level = One LOW level pulse ↑ = Transition from LOW-to-HIGH X= Irrelevant ↓ = Transition from...
Fairchild Semiconductor
