MC74AC540DWG ON Semiconductor

MC74AC540, MC74ACT540, MC74AC541, MC74ACT541 Octal Buffer/Line Driver with 3-State Outputs The MC74AC540/74ACT540 and MC74AC541/74ACT541 are octal buffer/line drivers designed to be employed as memory and www.onsemi.com address drivers, clock drivers and bus oriented transmitter/receivers. The MC74AC541/74ACT541 is a noninverting option of the MC74AC540/74ACT540. These devices are similar in function to the SOIC20W DW SUFFIX MC74AC240/74ACT240 and MC74AC244/74ACT244 while CASE 751D providing flowthrough architecture (inputs on opposite side from 1 outputs). This pinout arrangement makes these devices especially useful as output ports for microprocessors, allowing ease of layout and greater PC board density. TSSOP20 Features DT SUFFIX CASE 948E 3State Outputs 1 Inputs and Outputs Opposite Side of Package, Allowing Easier Interface to Microprocessors Outputs Source/Sink 24 mA ORDERING INFORMATION See detailed ordering and shipping information in the package MC74AC540/74ACT540 Provides Inverted Outputs dimensions section on page 8 of this data sheet. MC74AC541/74ACT541 Provides Noninverted Outputs ACT540 and ACT541 Have TTL Compatible Inputs DEVICE MARKING INFORMATION These are PbFree Devices See general marking information in the device marking section on page 8 of this data sheet. TRUTH TABLE Inputs Outputs OE OE D 540 541 1 2 L L H L H H X X Z Z X H X Z Z L L L H L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: March, 2015 Rev. 9 MC74AC540/DMC74AC540, MC74ACT540, MC74AC541, MC74ACT541 OE V OE V 1 1 20 CC 1 1 20 CC OE OE 2 19 2 2 19 2 3 18 3 18 4 17 4 17 5 16 5 16 6 15 6 15 7 14 7 14 8 13 8 13 9 12 9 12 GND GND 10 11 10 11 Figure 1. MC74AC540/74ACT540 Figure 2. MC74AC541/74ACT541 www.onsemi.com 2