SN54ALS541

D 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers D pnp Inputs Reduce dc Loading D Data Flowthrough Pinout (All Inputs on Opposite Side From Outputs) description These octal buffers and line drivers are designed to have the performance of the popular SN54ALS240A/ SN74ALS240A series and, at the same time, offer a pinout with inputs and outputs on opposite sides of the package. This arrangement greatly facilitates printed circuit board layout. The 3-state control gate is a 2-input NOR gate such that, if either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state. The SN74ALS540 provides inverted data. The ’ALS541 provide true data at the outputs. The -1 versions of SN74ALS540 and SN74ALS541 are identical to the standard versions, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS541. SN54ALS541, SN74ALS540, SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS SDAS025D – APRIL 1982 – REVISED MARCH 2002 SN54ALS541 . . . J PACKAGE SN74ALS540 . . . DW, N, OR NS PACKAGE SN74ALS541 . . . DB, DW, N, OR NS PACKAGE (TOP VIEW) OE1 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 20 VCC 19 OE2 18 Y1 17 Y2 16 Y3 15 Y4 14 Y5 13 Y6 12 Y7 11 Y8 SN54ALS541 . . . FK PACKAGE (TOP VIEW) A2 A1 OE1 VCC OE2 A3 3 2 1 20 19 4 18 Y1 A4 5 17 Y2 A5 6 16 Y3 A6 7 15 Y4 A7 8 14 Y5 9 10 11 12 13 A8 GND Y8 Y7 Y6 Please be aware that an important notice concerning availabi...