SN74HC244-Q1
SCLS543C – SEPTEMBER 2002 – REVISED JUNE 2022
SN74HC244-Q1 Octal Buffer and Line Driver With 3-State Output...
SN74HC244-Q1
SCLS543C – SEPTEMBER 2002 – REVISED JUNE 2022
SN74HC244-Q1 Octal Buffer and Line Driver With 3-State Outputs
1 Features
Qualified for automotive applications ESD protection exceeds 2000 V per MIL-STD-883,
Method 3015; exceeds 200 V using machine model (C = 200 pF, R = 0) Wide operating
voltage range of 2 V to 6 V High-current outputs drive up to 15 LSTTL loads 3-state outputs drive bus lines or buffer memory address registers Low power consumption, 80-μA max ICC Typical tpd = 11 ns ±6-mA output drive at 5 V Low input current of 1 μA max
2 Description
This octal buffer and line driver is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74HC244 is organized as two 4-bit buffers/ drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
PART NUMBER
Device Information
PACKAGE(1) BODY SIZE (NOM)
SN74HC244QDW-Q1 SOIC (20) 12.80 mm × 7.50 mm
SN74HC244QPW-Q1 TSSOP (20) 6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Functional Block Diagram
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRO...
