SN74AHCT541

www.ti.com SN54AHCT541 SN74AHCT541 SCLS269P – OCTOBER 1995 – REVISED JUNE 2013 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS Check for Samples: SN54AHCT541, SN74AHCT541 FEATURES 1 Inputs Are TTL-Voltage Compatible Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) DESCRIPTION The ’AHCT541 octal buffers/drivers are ideal for driving bus lines or buffer memory address registers. These devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board layout. The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2) input is high, all corresponding outputs are in the high-impedance state. The outputs provide noninverted data when they are not in the highimpedance state. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. SN54AHCT541 . . . J or W PACKAGE SN74AHCT541 . . . DB, DGV, DW, N, NS, OR PW 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 SN54AHCT541 . . . FK PACKAGE (TOP VIEW) A2 A1 OE1 VCC OE2 3 2 1 20 19 A3 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 ...