Texas Instruments 74ACT11478
The 74ACT11478 is an 8-bit dual-rank synchronizer circuit designed specifically for data synchronization applications where the normal setup and hold time specifications are frequently violated. This problem is typically solved by synchronizing one of the signals to the local clock through a flip-flop. This solution, however, causes the setup and hold time specifications associated with the flip-flop to be violated.| Part No. | 74ACT11478 |
|---|---|
| Datasheet | 74ACT11478 Download |
| Manufacturer |  Texas Instruments |
| Description | METASTABLE-RESISTAND OCTAL D-TYPE DUAL-RANK FLIP-FLOP |
| Buy | Stock & Price |
APPLICATIONS
● Improved Metastable Characteristics Provide Greater System Reliability● 3-State Outputs Drive Bus Lines Directly
● Flow-Through Architecture to Optimize PCB Layout
● Center-Pin VCC and GND Configurations to Minimize High-Speed Switching Noise t● EPIC (Enhanced-Performance Implanted CMOS) 1-mm Process
● 500-mA Typical Latch-Up Immunity at 125°C
● Package Options Include Plastic Small Outline Packages and Standard Plastic 300-mil DIPs DW OR NT PACKAGE (TOP VIEW) 1Q 2Q 3Q 4Q GND GND GND GND 5Q 6Q 7Q 8Q 1 2 3 4 5 6 7 8 9 10 11 12 24 OE 23 1D 22 2D 21 3D 20 4D 19 VCC 18 VCC 17 5D 16 6D 15 7D 14 8D 13 CLK description Synchronization of two digital signals operating at different frequencies is a common system problem. When the setup or hold time specification is violated, the output response is uncertain. A flip-flop is metastable if its output hangs up in the region between VIL and VIH. The metastable condition lasts until the flip-flop recovers into one of its two stable states.
