SN74F244 Datasheet | Texas Instruments

- 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers - Package Options Include Plastic Small-Outline (SOIC) and Shrink Small-Outline (SSOP) Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs description These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Taken together with the ′F240 and ′F241, these devices provide the choice of selected binations of inverting and noninverting outputs, symmetrical OE (active-low output-enable) inputs, and plementary OE and OE inputs. The ′F244 is organized as two 4-bit buffers/line drivers with separate output enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. The SN74F244 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area. The SN54F244 is characterized for operation over the full military temperature range of - 55°C to 125°C. The SN74F244 is characterized for operation from 0°C to 70°C. 2Y1 GND 2A1 1Y4 2A2 SN54F244, SN74F244 OCTAL BUFFERS/DRIVERS WITH 3ĆSTATE OUTPUTS SDFS063A - D2932, MARCH 1987 - REVISED OCTOBER 1993 SN54F244 . . . J PACKAGE SN74F244 . . . DB, DW, OR N PACKAGE (TOP VIEW) 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 1 2 3 4 5 6 7 8 9 10 20 VCC 19 2OE 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1 SN54F244 . . . FK PACKAGE (TOP VIEW) 2Y4 1A1 1OE VCC 2OE 1A2 3 2 1 20 19 4 18 1Y1 2Y3 5 17 2A4 1A3 6 16 1Y2 2Y2...