Description
Signetics Counter Single 4-Bit Async Binary UP/Down 16-Pin SO
IC Up/Down 4 Bit Binary Counter with Preset and Ripple Clock SMD SOIC-16
Signetics was an American electronics pioneer, it was the first electronics manufacturer specifically established to make integrated circuits. Signetics developed a number of early microprocessors and support chips, as well as the widely used 555 timer chip. They were bought by Philips in 1975 and incorporated in Philips Semiconductors (now NXP).
Manufacturer Part Number: 74F191D
Philips
