Fairchild DM74LS259MX 8-Bit Addressable Latch SOIC16Fairchild 74F109PC Dual J-K positive edge-triggered flip-flops DIL16
TI SN74LS279AN Quad Set - Reset Latches DIL16
TI SN74LS279AN Quad Set - Reset Latches DIL16
Description
TI SN74LS279AN Quad Set - Reset Latches DIL16
Manufactured by Texas Imstruments - PDIP16 through hole package
General Description
The 74LS279 consists of four individual and independent Set-Reset Latches with active low inputs. Two of the four latches have an additional S input ANDed with the primary S input. A LOW on any S input while the R input is HIGH will be stored in the latch and appear on the corresponding Q output as a HIGH. A LOW on the R input while the S input is HIGH will clear the Q output to a LOW. Simultaneous transition of the R and S inputs from LOW-toHIGH will cause the Q output to be indeterminate. Both inputs are voltage level triggered and are not affected by transition time of the input data.