Buffers & Line Drivers Buffers & Line Drivers Military 8-ch, 4.5-V to 5.5-V bipolar inverters with 3-state outputs 20-CDIP -55 to 125 JM38510/32401BRB - Texas Instrument - Military High-Reliability Integrated Circuit, Commercial Number 54LS240 MFG. Texas Instrument Date Code 1981