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SN74LVCH16541A Datasheet Preview

SN74LVCH16541A Datasheet

16-BIT BUFFER/DRIVER

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www.ti.com
FEATURES
Member of the Texas Instruments Widebus™
Family
Operates From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 4.2 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
Ioff Supports Partial-Power-Down Mode
Operation
Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage
With 3.3-V VCC)
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
SN74LVCH16541A
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCAS567H – MARCH 1996 – REVISED MARCH 2005
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1OE1 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
VCC 7
1Y5 8
1Y6 9
GND 10
1Y7 11
1Y8 12
2Y1 13
2Y2 14
GND 15
2Y3 16
2Y4 17
VCC 18
2Y5 19
2Y6 20
GND 21
2Y7 22
2Y8 23
2OE1 24
48 1OE2
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 VCC
41 1A5
40 1A6
39 GND
38 1A7
37 1A8
36 2A1
35 2A2
34 GND
33 2A3
32 2A4
31 VCC
30 2A5
29 2A6
28 GND
27 2A7
26 2A8
25 2OE2
DESCRIPTION/ORDERING INFORMATION
This 16-bit buffer/driver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVCH16541A is a noninverting 16-bit buffer composed of two 8-bit sections with separate
output-enable signals. For either 8-bit buffer section, the two output-enable (1OE1 and 1OE2 or 2OE1 and
2OE2) inputs must be low for the corresponding Y outputs to be active. If either output-enable input is high, the
outputs of that 8-bit buffer section are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
TA
–40°C to 85°C
ORDERING INFORMATION
PACKAGE (1)
ORDERABLE PART NUMBER
SSOP – DL
Tube
Tape and reel
SN74LVCH16541ADL
SN74LVCH16541ADLR
TSSOP – DGG Tape and reel
SN74LVCH16541ADGGR
TVSOP – DGV Tape and reel
SN74LVCH16541ADGVR
TOP-SIDE MARKING
LVCH16541A
LVCH16541A
LDH541A
(1) 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 is a trademark 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 © 1996–2005, Texas Instruments Incorporated




etcTI

SN74LVCH16541A Datasheet Preview

SN74LVCH16541A Datasheet

16-BIT BUFFER/DRIVER

No Preview Available !

SN74LVCH16541A
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCAS567H – MARCH 1996 – REVISED MARCH 2005
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
1OE1 1
1OE2 48
1A1 47
FUNCTION TABLE
(EACH 8-BIT SECTION)
INPUTS
OE1 OE2 A
L
L
L
L
L
H
H
X
X
X
H
X
OUTPUT
Y
L
H
Z
Z
LOGIC DIAGRAM (POSITIVE LOGIC)
24
2OE1
25
2OE2
2 1Y1
36
2A1
13
2Y1
To Seven Other Channels
To Seven Other Channels
2



Part Number SN74LVCH16541A
Description 16-BIT BUFFER/DRIVER
Maker etcTI
Total Page 3 Pages
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