First commercial integrated transistor-transistor logic

First CMOS logic family, originally introduced by RCA

Schottky diodes used to improve switching speeds

Lower power version of the S family

Originally from Fairchild, included "miller-killer" circuit to improve low-to-high transition times

Same technology as the AS family, but with reduced speed to improve power consumption

Improved version of the F logic family, producing the best speed to power ratio (Propagation Delay Product, PDP) available in any bipolar logic family

High drive (+64/-15mA) bus buffers and transceivers, 5ns typical delay

High drive (+64/-32mA) bus buffers and transceivers, 3ns typical delay

High drive (+64/-32mA) bus buffers and transceivers, 2ns typical delay