74VHC126BQ-Q100X Datasheet Summary

1. General Description:
The 74VHC126BQ-Q100X and 74VHCT126BQ-Q100X are high-speed Si-gate CMOS devices that are pin compatible with Low-power Schottky TTL (LSTTL). These devices provide four non-inverting buffer/line drivers with 3-state outputs and are compliant with JEDEC standard No. 7-A. The output enable input (nOE) controls the 3-state outputs (nY), with a LOW level at pin nOE causing the outputs to assume a high-impedance OFF-state. These products are qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1), making them suitable for automotive applications.

2. Features and Benefits:

• Automotive product qualification in accordance with AEC-Q100 (Grade 1)
• Specified temperature ranges: -40 °C to +85 °C and -40 °C to +125 °C
• Balanced propagation delays
• All inputs have Schmitt-trigger action
• Inputs accept voltages higher than VCC
• Multiple input level operations: 74VHC126-Q100 with CMOS input level and 74VHCT126-Q100 with TTL input level
• ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V)
• Multiple package options available

3. Ordering Information:

• Package Type Number: DHVQFN14
• Temperature Range: -40 °C to +125 °C
• Name Description: 74VHC126BQ-Q100, 74VHCT126BQ-Q100
• Package Details: Plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 14 terminals; body 2.5 × 3 × 0.85 mm

4. Functional Diagram:
The datasheet includes a functional diagram (Fig. 1) and logic symbols (Figs. 2 and 3) that illustrate the operation of the device.

5. Pinning Information:

• Pinning: Detailed pin assignments are provided for the DHVQFN14 package, with pin 1 being the index area and pin 14 being VCC.
• Pin Description: Each pin's function is described in Table 2, including output enable inputs (1OE, 2OE, 3OE, 4OE), data inputs (1A, 2A, 3A, 4A), data outputs (1Y, 2Y, 3Y, 4Y), and ground (GND).

6. Functional Description:
A function table (Table 3) is provided, showing the control input and output behavior under different conditions.