SN54HC244 Datasheet, PDF (1/16 Pages) Texas Instruments – OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

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
SN54HC244 . . . J OR W PACKAGE
SN74HC244 . . . DB, DW, N, NS, 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
SN54HC244, SN74HC244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS130D – DECEMBER 1982 – REVISED AUGUST 2003
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 11 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
SN54HC244 . . . FK PACKAGE
(TOP VIEW)
1A2
3 2 1 20 19
4
18
1Y1
2Y3 ₅
17 ^2A4
1A3 6
16 1Y2
2Y2 7
15 2A3
1A4 8
14 1Y3
9 10 11 12 13
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 ’HC244
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
PDIP – N
Tube of 20
SN74HC244N
SN74HC244N
SOIC – DW
Tube of 25
Reel of 2000
SN74HC244DW
SN74HC244DWR
HC244
–40°C to 85°C
SOP – NS
SSOP – DB
Reel of 2000
Reel of 2000
SN74HC244NSR
SN74HC244DBR
HC244
HC244
Tube of 70
SN74HC244PW
TSSOP – PW
Reel of 2000 SN74HC244PWR
HC244
Reel of 250
SN74HC244PWT
CDIP – J
Tube of 20
SNJ54HC244J
SNJ54HC244J
–55°C to 125°C CFP – W
Tube of 85
SNJ54HC244W
SNJ54HC244W
LCCC – FK
Tube of 55
SNJ54HC244FK
SNJ54HC244FK
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
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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