MC74LCX541 Low-Voltage CMOS Octal Buffer Flow Through Pinout With 5 VTolerant Inputs and Outputs (3State, NonInverting) MC74LCX541 1 OE1 19 V OE2 O0 O1 O2 O3 O4 O5 O6 O7 CC OE2 2 18 20 19 18 17 16 15 14 13 12 11 D0 O0 3 17 D1 O1 4 16 D2 O2 1 2 34567 8 9 10 5 15 D3 O3 OE1 D0 D1 D2 D3 D4 D5 D6 D7 GND 6 14 D4 O4 Figure 1. Pinout: 20Lead (Top View) 7 13 D5 O5 PIN NAMES 8 12 D6 O6 Pins Function OEn Output Enable Inputs 9 11 D7 O7 Dn Data Inputs On 3State Outputs Figure 2. Logic Diagram TRUTH TABLE Inputs Outputs OE1 OE2 Dn On L L L L L L H H X H X Z H X X Z H = High Voltage Level L = Low Voltage Level Z = High Impedance State X = High or Low Voltage Level and Transitions are Acceptable, for I reasons, CC DO NOT FLOAT Inputs MAXIMUM RATINGS Symbol Parameter Value Condition Units V DC Supply Voltage 0.5 to +7.0 V CC V DC Input Voltage 0.5 V +7.0 V I I V DC Output Voltage 0.5 V +7.0 Output in 3State V O O 0.5 V V + 0.5 (Note 1) V O CC I DC Input Diode Current 50 V < GND mA IK I I DC Output Diode Current 50 V < GND mA OK O +50 V > V mA O CC I DC Output Source/Sink Current 50 mA O I DC Supply Current Per Supply Pin 100 mA CC I DC Ground Current Per Ground Pin 100 mA GND T Storage Temperature Range 65 to +150 C STG MSL Moisture Sensitivity Level 1 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Output in HIGH or LOW State. I absolute maximum rating must be observed. O