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SN54HCT244 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN54HCT244
Description  OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54HCT244, SN74HCT244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS175D – MARCH 1984 – REVISED AUGUST 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Operating Voltage Range of 4.5 V to 5.5 V
D High-Current Outputs Drive Up To 15
LSTTL Loads
D Low Power Consumption, 80-µA Max ICC
D Typical tpd = 13 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Inputs Are TTL-Voltage Compatible
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
description/ordering information
These octal buffers and line drivers are designed
specifically to improve both the performance and
density of 3-state memory address drivers, clock
drivers,
and
bus-oriented
receivers
and
transmitters. The ’HCT244 devices are 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.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–40 C to 85 C
PDIP – N
Tube of 20
SN74HCT244N
SN74HCT244N
–40 C to 85 C
SOIC – DW
Tube of 25
SN74HCT244DW
HCT244
–40 C to 85 C
SOIC – DW
Reel of 2000
SN74HCT244DWR
HCT244
–40
°C to 85°C
SOP – NS
Reel of 2000
SN74HCT244NSR
HCT244
–40
°C to 85°C
SSOP – DB
Reel of 2000
SN74HCT244DBR
HT244
TSSOP – PW
Tube of 70
SN74HCT244PW
HT244
TSSOP – PW
Reel of 2000
SN74HCT244PWR
HT244
Reel of 250
SN74HCT244PWT
–55 C to 125 C
CDIP – J
Tube of 20
SNJ54HCT244J
SNJ54HCT244J
–55
°C to 125°C
CFP – W
Tube of 85
SNJ54HCT244W
SNJ54HCT244W
LCCC – FK
Tube of 55
SNJ54HCT244FK
SNJ54HCT244FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
SN54HCT244 ...J OR W PACKAGE
SN74HCT244 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54HCT244 . . . FK PACKAGE
(TOP VIEW)
Copyright
 2003, Texas Instruments Incorporated
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.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.




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