Texas Instruments SN74AHCT16374DGGR

16-Bit Edge-Triggered D-Type Flip-Flops With 3-State Outputs 48-TSSOP -40 to 85

Flip Flop D-Type Bus Interface Pos-Edge 3-ST 2-Element 48-Pin TSSOP T/R

Cut Tape (CT) 74AHCT16374 e4 74AHCT flip flop 12.5mm 10.4ns @ 5V 50pF 130MHz 11.5ns

The 'AHCT16374 devices are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. These devices can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock(CLK) input, the Q outputs of the flip-flop take on the logic levels at the data (D) inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (highor low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without need for interface or pull up components. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullupresistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54AHCT16374 is characterized for operation over the full military temperature range of -55oC to 125oC. The SN74AHCT16374 is characterized for operation from -40oC to 85oC. Copyright (C) 2000, Texas Instruments Incorporated Unless OTHERWISE NOTED this document contains PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC and Wide bus are trademarks of Texas Instruments Incorporated.