OVERVIEW
The SM5839A is an 8-bit variable-length shift resister. The input pins can be configured to function as a 2 to 128-step shift resister. The shift clock has a maximum frequency of 54 MHz, making it ideal for high-speed digital signal processing.

FEATURES
■ 2 to 128-step selectable variable-length shift resister
■ Static circuitry
■ 8-bit (byte) word length
■ Selectable circulating/non-circulating storage
■ 54 MHz maximum operating clock frequency (standard-voltage specification)
■ Supply voltage
    • 5.0 ± 0.5 V (standard-voltage specification)
    • 2.7 to 4.5 V (low-voltage specification)
■ TTL-compatible input/outputs
■ Molybdenum-gate CMOS
■ Package
    • 28-pin DIP (SM5839AP)
    • 28-pin VSOP (SM5839AV)