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SN74LVC244A
SCAS414AB – NOVEMBER 1992 – REVISED NOVEMBER 2016
SN74LVC244A Octal Buffer or Driver With 3-State Outputs
1 Features
2 Applications
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Operates From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Specified From –40°C to +85°C and
–40°C to +125°C
Maximum tpd of 5.9 ns at 3.3 V
Typical VOLP (Output Ground Bounce)
< 0.8 V at VCC = 3.3 V, TA = 25°C
Typical VOHV (Output VOH Undershoot)
> 2 V at VCC = 3.3 V, TA = 25°C
Supports Mixed-Mode Signal Operation on
All Ports (5-V Input or Output Voltage With
3.3-V VCC)
Ioff Supports Live Insertion, Partial-Power-Down
Mode, and Back-Drive Protection
Can Be Used as a Down Translator to Translate
Inputs From a Maximum of 5.5 V Down
to the VCC Level
Available in Ultra Small Logic QFN Package (0.5
mm Maximum Height)
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model
– 1000-V Charged-Device Model
Servers
LED Displays
Network Switches
Telecom Infrastructure
Motor Drivers
I/O Expanders
3 Description
These octal bus buffers are designed for 1.65-V to
3.6-V VCC operation. The SN74LVC244A devices
are designed for asynchronous communication
between data buses.
Device Information
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SN74LVC244AN
PDIP (20)
25.40 mm × 6.35 mm
SN74LVC244ANS
SO (20)
12.60 mm × 5.30 mm
SN74LVC244ADB
SSOP (20)
7.50 mm × 5.30 mm
SN74LVC244ADGV
TVSOP (20)
5.00 mm × 4.40 mm
SN74LVC244ADW
SOIC (20)
12.80 mm × 7.50 mm
SN74LVC244ARGY
VQFN (20)
4.50 mm × 3.50 mm
SN74LVC244AZQN
BGA (20)
3.00 mm × 4.00 mm
SN74LVC244APW
TSSOP (20)
6.50 mm × 4.40 mm
SN74LVC244ARWP
X1QFN (20)
2.50 mm × 3.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Logic Diagram (Positive Logic)
1OE
1A1
1A2
1A3
1A4
1
2OE
2
18
4
16
6
14
8
12
1Y1
2A1
1Y2
2A2
1Y3
2A3
1Y4
2A4
19
11
9
13
7
15
5
17
3
2Y1
2Y2
2Y3
2Y4
Pin numbers shown are for the DB, DGV, DW, N, NS, PW, and RGY packages.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.