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AVC16244 Datasheet

  • AVC16244

  • 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS

  • 13頁

  • TI

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SN74AVC16244
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES141N 鈥?JULY 1998 鈥?REVISED MARCH 2005
FEATURES
鈥?/div>
鈥?/div>
Member of the Texas Instruments Widebus鈩?/div>
Family
DOC鈩?(Dynamic Output Control) Circuit
Dynamically Changes Output Impedance,
Resulting in Noise Reduction Without Speed
Degradation
Less Than 2-ns Maximum Propagation Delay
at 2.5-V and 3.3-V V
CC
Dynamic Drive Capability Is Equivalent to
Standard Outputs With I
OH
and I
OL
of
鹵24
mA
at 2.5-V V
CC
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Overvoltage-Tolerant Inputs/Outputs Allow
Mixed-Voltage-Mode Data Communications
I
off
Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
鈥?2000-V Human-Body Model (A114-A)
鈥?200-V Machine Model (A115-A)
DESCRIPTION/ORDERING INFORMATION
A Dynamic Output Control (DOC) circuit is implemented, which, during the transition, initially lowers the output
impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. Figure 1 shows
typical V
OL
vs I
OL
and V
OH
vs I
OH
curves to illustrate the output impedance and drive capability of the circuit. At
the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that is equivalent to a
high-drive standard-output device. For more information, refer to the TI application reports,
AVC Logic Family
Technology and Applications,
literature number SCEA006, and
Dynamic Output Control (DOC鈩? Circuitry
Technology and Applications,
literature number SCEA009.
3.2
2.8
V - Output Voltage - V
OL
2.4
2.0
1.6
V
CC
= 2.5 V
1.2
V
CC
= 1.8 V
0.8
0.4
0
17
34
51
68
85 102 119
I
OL
- Output Current - mA
136
153
170
V
CC
= 3.3 V
T
A
= 25擄C
Process = Nominal
- Output Voltage - V
2.8
2.4
2.0
1.6
1.2
0.8
V
CC
= 3.3 V
0.4
V
CC
= 2.5 V
V
CC
= 1.8 V
-32
-16
0
T
A
= 25擄C
Process = Nominal
V
OH
-160 -144 -128 -112 -96 -80 -64 -48
I
OH
- Output Current - mA
Figure 1. Output Voltage vs Output Current
ORDERING INFORMATION
T
A
TSSOP 鈥?DGG
鈥?0擄C to 85擄C
TVSOP 鈥?DGV
VFBGA 鈥?GQL
VFBGA 鈥?ZQL (Pb-free)
(1)
PACKAGE
(1)
Tape and reel
Tape and reel
Tape and reel
ORDERABLE PART NUMBER
SN74AVC16244DGGR
SN74AVC16244DGVR
SN74AVC16244GQLR
SN74AVC16244ZQLR
TOP-SIDE MARKING
AVC16244
CVA244
CVA244
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.
Widebus, DOC are trademarks of Texas Instruments.
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 漏 1998鈥?005, Texas Instruments Incorporated

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