74ABT126 Quad buffer 3-state Rev. 6 8 October 2020 Product data sheet 1. General description The 74ABT126 is a quad buffer/line driver with 3-state outputs controlled by the output enable inputs (nOE). A LOW on nOE causes the outputs to assume a high impedance OFF-state. This device is fully specified for partial power down applications using I . The I circuitry disables OFF OFF the output, preventing the potentially damaging backflow current through the device when it is powered down. 2. Features and benefits Supply voltage range from 4.5 V to 5.5 V BiCMOS high speed and output drive Direct interface with TTL levels Power-up 3-state I circuitry provides partial Power-down mode operation OFF Quad bus interface 3-state buffers Live insertion and extraction permitted Output capability: +64 mA and -32 mA Inputs are disabled during 3-state mode Latch-up protection: JESD78: exceeds 500 mA ESD protection: MIL STD 883 method 3015: exceeds 2000 V MM JESD22-A115-A exceeds 200 V 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74ABT126D -40 C to +85 C SO14 plastic small outline package 14 leads SOT108-1 body width 3.9 mm 74ABT126PW -40 C to +85 C TSSOP14 plastic thin shrink small outline package 14 leads SOT402-1 body width 4.4 mmNexperia 74ABT126 Quad buffer 3-state 4. Functional diagram 2 2 1A 1Y 3 1 3 1 1 1OE EN1 5 2A 2Y 6 5 6 4 2OE 4 9 3A 3Y 8 9 8 10 3OE 10 12 12 4A 4Y 11 11 13 13 4OE 001aac482 001aac483 Fig. 1. Logic symbol Fig. 2. IEC logic symbol 5. Pinning information 5.1. Pinning 74ABT126 1OE 1 14 V CC 74ABT126 1A 2 13 4OE 1OE 1 14 V 1Y 3 12 4A CC 1A 2 13 4OE 2OE 4 11 4Y 1Y 3 12 4A 2OE 4 11 4Y 2A 5 10 3OE 2A 5 10 3OE 2Y 6 9 3A 2Y 6 9 3A GND 7 8 3Y GND 7 8 3Y aaa-026566 aaa-026567 Fig. 3. Pin configuration SOT108-1 (SO14) Fig. 4. Pin configuration SOT402-1 (TSSOP14) 5.2. Pin description Table 2. Pin description Symbol Pin Description 1OE, 2OE, 3OE, 4OE 1, 4, 10, 13 output enable inputs 1A, 2A, 3A, 4A 2, 5, 9, 12 data inputs 1Y, 2Y, 3Y, 4Y 3, 6, 8, 11 data outputs GND 7 ground (0 V) V 14 supply voltage CC 74ABT126 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 6 8 October 2020 2 / 11