Texas Instruments SN74AS374DWR

Flip Flop D-Type Bus Interface Pos-Edge 3-ST 1-Element 20-Pin SOIC T/R

Positive edge 120mA 9ns@ 5V,50pF Non-inverting Tristate，Non-inverting 1 4.5V 5.5V 48mA Standard 74AS parallel/parallel 15mA 125MHz SOIC-20 SMD mount，glue mount 12.8mm*7.52mm*2.35mm

Flip-Flop Logic IC; Logic Family:AS; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Package/Case:20-SOIC; No. of Pins:20; Operating Temperature Range:0°C to +70°C; Input Type:TTL; Leaded Process Compatible:Yes; Output Type:TTL ;RoHS Compliant: Yes

These octal D-type edge-triggered flip-flops feature 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. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs. A buffered output-enable (OE\) input places the eight outputs in either a normal logic state (high or 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 interface or pullup components. OE\ does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54ALS374A and SN54AS374 are characterized for operation over the full military temperature range of -55C to 125C. The SN74ALS374A and SN74AS374 are characterized for operation from 0C to 70C.