SN54HCT244_16 Datasheet, PDF (1/23 Pages) Texas Instruments – OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

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 I_CC
D Typical t_pd = 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.
SN54HCT244, SN74HCT244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS175D – MARCH 1984 – REVISED AUGUST 2003
SN54HCT244 . . . J OR W PACKAGE
SN74HCT244 . . . 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
SN54HCT244 . . . 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
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube of 20
SN74HCT244N
SN74HCT244N
SOIC – DW
Tube of 25
Reel of 2000
SN74HCT244DW
SN74HCT244DWR
HCT244
–40°C to 85°C
SOP – NS
SSOP – DB
Reel of 2000
Reel of 2000
SN74HCT244NSR
SN74HCT244DBR
HCT244
HT244
Tube of 70
SN74HCT244PW
TSSOP – PW
Reel of 2000 SN74HCT244PWR
HT244
Reel of 250
SN74HCT244PWT
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.
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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