1. General description
The 74LVC244A-Q100; 74LVCH244A-Q100 is an octal non-inverting buffer/line driver with 3-state
outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on
nOE causes the outputs to assume a high-impedance OFF-state. Schmitt-trigger action at all inputs
makes the circuit highly tolerant for slower input rise and fall times.
Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle
5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V
environment.
The 74LVCH244A-Q100 bus hold on data inputs eliminates the need for external pull-up resistors
to hold unused inputs.
This product has been qualified to the Automotive Electronics Council (AEC) standard Q100
(Grade 1) and is suitable for use in automotive applications.

2. Features and benefits
• Automotive product qualification in accordance with AEC-Q100 (Grade 1)
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C
• 5 V tolerant inputs/outputs for interfacing with 5 V logic
• Wide supply voltage range from 1.2 V to 3.6 V
• CMOS low-power consumption
• Direct interface with TTL levels
• Inputs accept voltages up to 5.5 V
• High-impedance when VCC = 0 V
• Bus hold on all data inputs (74LVCH244A-Q100 only)
• Complies with JEDEC standard:
• JESD8-7A (1.65 V to 1.95 V)
• JESD8-5A (2.3 V to 2.7 V)
• JESD8-C/JESD36 (2.7 V to 3.6 V)
• ESD protection:
• MIL-STD-883, method 3015 exceeds 2000 V
• HBM JESD22-A114F exceeds 2000 V
• MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)
• Multiple package options
• DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of
solder joints