SN5491A, SN54LS91, SN7491A, SN74LS91 8-BIT SHIFT R.
Texas Instruments
SN74LS91 - 8-BIT SHIFT REGISTER
SN5491A, SN54LS91, SN7491A, SN74LS91 8-BIT SHIFT REGISTERS SDLS126 – MARCH 1974 – REVISED MARCH 1988 PRODUCTION DATA information is current as of pub.
