I bought some 7-segment LED displays along with some BCD-7 segment decoders. The clerk said he didn't have the exact part I asked for and instead gave me a Texas Instruments CD4056BP. He said it was compatible but now that I've seen the datasheet, I'm not so sure as it describes the device family as a liquid-crystal display driver.
The datasheet makes no mention of use with LED displays, however the presence of the display frequency input suggests the IC can drive other display types
Quoting the datasheet, emphasis mine
The 7-segment outputs are controlled by the DISPLAY-FREQUENCY (DF) input which causes the selected segment outputs to be low, high, or a square-wave output (for liquid-crystal displays). When the DF input is low the output segments will be high when selected by the BCD inputs...
With that in mind, is it safe to directly drive the LED display from this device?