Nexperia B.V. 20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state 74ALVT16821DGG,118

The 74ALVT16821 is a 20-bit positive-edge triggered D-type flip-flop with 3-state outputs. The device can be used as two 10-bit flip-flops or one 20-bit flip-flop. The device features two clocks (1CP and 2CP) and two output enables (1OEand 2OE), each controlling 10-bits. The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (nCP) transition. A HIGH on nOEcauses the outputs to assume a high-impedance OFF-state. Operation of the nOEinput does not affect the state of the flip-flops. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs Features and benefits Wide supply voltage range from 2.3 V to 3.6 V Overvoltage tolerant inputs to 5.5 V 20-bit positive-edge triggered register BiCMOS high speed and output drive Direct interface with TTL levels Bus hold on data inputs No bus current loading when output is tied to 5 V bus Power-up 3-state IOFF circuitry provides partial Power-down mode operation Latch-up performance exceeds 500 mA per JESD 78 Class II Level B ESD protection: HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V