SN74AHCT126-Q1 Automotive Quadruple Bus Buffer Gate with 3-State Outputs

1 Features

AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: -40°C to +125°C
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Available in wettable flank QFN (WBQA) package
Operating range of 4.5V to 5.5V
±8mA output drive at 5V
Inputs are TTL-voltage compatible
Latch-up performance exceeds 250mA per JESD 17

2 Applications

3 Description

The SN74AHCT126-Q1 device is a quadruple bus buffer gate featuring independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is low. When OE is high, the respective gate passes the data from the A input to its Y output.

To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

Package Information

PART NUMBER	PACKAGE⁽¹⁾	PACKAGE SIZE⁽²⁾	BODY SIZE⁽³⁾
SN74AHCT126-Q1	D (SOIC, 14)	8.7mm × 6mm	8.7mm × 3.9mm
	PW (TSSOP, 14)	5mm × 6.4mm	5mm × 4.4mm
	BQA (WQFN, 14)	3mm × 2.5mm	3mm × 2.5mm

(1) For more information, see Section 11.

(2) The package size (length × width) is a nominal value and includes pins, where applicable.

(3) The body size (length × width) is a nominal value and does not include pins.

Pin numbers shown are for the D and PW packages.

Logic Diagram (Positive Logic)