SN74LV244AT
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES572C – JUNE 2004 – REVISED AUGUST 2005
FEATURES
•
•
•
•
•
•
Inputs Are TTL-Voltage Compatible
4.5-V to 5.5-V V
CC
Operation
Typical t
pd
= 5.4 ns at 5 V
Typical V
OLP
(Output Ground Bounce)
<0.8 V at V
CC
= 5 V, T
A
= 25°C
Typical V
OHV
(Output V
OH
Undershoot)
>2.3 V at V
CC
= 5 V, T
A
= 25°C
Supports Mixed-Mode Voltage Operation on
All Ports
DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
•
•
•
I
off
Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
RGY PACKAGE
(TOP VIEW)
1OE
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
1
20
19
2OE
18
1Y1
17
2A4
16
1Y2
15
2A3
14
1Y3
13
2A2
12
1Y4
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
2
3
4
5
6
7
8
9
10
11
GND
DESCRIPTION/ORDERING INFORMATION
This octal buffer/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 SN74LV244AT is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When
OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the
high-impedance state.
ORDERING INFORMATION
T
A
QFN – RGY
SOIC – DW
SOP – NS
–40°C to 85°C
SSOP – DB
TSSOP – PW
TVSOP – DGV
(1)
PACKAGE
(1)
Reel of 1000
Tube of 25
Reel of 2000
Reel of 2000
Reel of 2000
Tube of 70
Reel of 2000
Reel of 250
Reel of 2000
ORDERABLE PART NUMBER
SN74LV244ATRGYR
SN74LV244ATDW
SN74LV244ATDWR
SN74LV244ATNSR
SN74LV244ATDBR
SN74LV244ATPW
SN74LV244ATPWR
SN74LV244ATPWT
SN74LV244ATDGVR
LV244AT
LV244AT
TOP-SIDE MARKING
VV244
LV244AT
74LV244AT
LV244AT
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004–2005, Texas Instruments Incorporated
2A1
V
CC
TI [ TEXAS INSTRUMENTS ]
