SN74HC244-Q1 Datasheet, PDF (1/11 Pages) Texas Instruments – OCTAL BUFFER AND LINE DRIVER WITH 3-STATE OUTPUTS

D Qualified for Automotive Applications
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Wide Operating Voltage Range of 2 V to 6 V
D High-Current Outputs Drive Up To 15
LSTTL Loads
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D Low Power Consumption, 80-µA Max I_CC
description/ordering information
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.
SN74HC244ĆQ1
OCTAL BUFFER AND LINE DRIVER
WITH 3ĆSTATE OUTPUTS
SCLS543A − SEPTEMBER 2002 − REVISED APRIL 2008
D Typical t_pd = 11 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
DW OR PW PACKAGE
(TOP VIEW)
1OE 1
1A1 2
2Y4 3
1A2 4
2Y3 5
1A3 6
2Y2 7
1A4 8
2Y1 9
GND ¹⁰
20 V_CC
19 2OE
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y4
11 _2A1
ORDERING INFORMATION^{
TA
PACKAGE‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − DW
−40°C to 125°C
TSSOP − PW
Reel of 2000
Reel of 2000
SN74HC244QDWRQ1
SN74HC244QPWRQ1
HC244Q
HC244Q
† _{For the most current package and ordering information, see the Package Option Addendum at the end of this}
document, or see the TI web site at http://www.ti.com.
‡ _{Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.}
FUNCTION TABLE
(each buffer/driver)
INPUTS
OE
A
OUTPUT
Y
L
H
H
L
L
L
H
X
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2008, Texas Instruments Incorporated
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