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)