SN74ALVCH162827
20-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES013H–JULY 1995–REVISED AUGUST 2004
FEATURES
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
•
Member of the Texas Instruments Widebus™
Family
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1OE1
1Y1
1Y2
GND
1Y3
1OE2
1A1
1A2
GND
1A3
•
Output Ports Have Equivalent 26-Ω Series
Resistors, So No External Resistors Are
Required
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4
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Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
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6
1Y4
1A4
Latch-Up Performance Exceeds 250 mA Per
JESD 17
7
V
CC
V
CC
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1Y
1Y6
1Y7
GND
1Y8
1Y9
1Y10
2Y1
2Y2
2Y3
GND
2Y4
2Y5
2Y6
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
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- 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This 20-bit noninverting buffer/driver is designed for
1.65-V to 3.6-V VCC operation.
The SN74ALVCH162827 is composed of two 10-bit
sections with separate output-enable signals. For
either 10-bit buffer section, the two output-enable
(1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must
both be low for the corresponding Y outputs to be
active. If either output-enable input is high, the
outputs of that 10-bit buffer section are in the
high-impedance state.
V
CC
V
CC
2Y7
2Y8
GND
2Y9
2Y10
2OE1
2A7
2A8
GND
2A9
2A10
2OE2
The outputs, which are designed to sink up to 12 mA,
include equivalent 26-Ω resistors to reduce overshoot
and undershoot.
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.
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.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74ALVCH162827DL
TOP-SIDE MARKING
Tube
SSOP - DL
ALVCH162827
Tape and reel
SN74ALVCH162827DLR
SN74ALVCH162827GR
-40°C to 85°C
TSSOP - DGG
TVSOP - DGV
Tape and reel
Tape and reel
ALVCH162827
VH2827
SN74ALVCH162827VR
(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.
Copyright © 1995–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.