SN74LVC861A
10-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCAS309I–MARCH 1993–REVISED FEBRUARY 2005
FEATURES
DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
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Operates From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 6.4 ns at 3.3 V
1
24
23
22
21
20
19
18
17
16
15
14
13
OEBA
A1
V
CC
2
B1
Typical VOLP (Output Ground Bounce)
3
A2
B2
<0.8 V at VCC = 3.3 V, TA = 25°C
4
A3
B3
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Typical VOHV (Output VOH Undershoot)
>2 V at VCC = 3.3 V, TA = 25°C
5
A4
B4
6
A5
B5
7
Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
A6
B6
8
A7
B7
3.3-V VCC
)
9
A8
B8
10
11
12
A9
A10
GND
B9
B10
OEAB
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Ioff 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)
DESCRIPTION/ORDERING INFORMATION
This 10-bit bus transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVC861A is designed for asynchronous communication between data buses. The control-function
implementation allows for maximum flexibility in timing.
This device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on
the logic levels at the output-enable (OEAB and OEBA) inputs.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in
a mixed 3.3-V/5-V system environment.
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.
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.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74LVC861ADW
TOP-SIDE MARKING
LVC861A
Tube of 25
SOIC – DW
Reel of 2000
Reel of 2000
Reel of 2000
Tube of 60
SN74LVC861ADWR
SN74LVC861ANSR
SN74LVC861ADBR
SN74LVC861APW
SOP – NS
LVC861A
LC861A
SSOP – DB
–40°C to 85°C
TSSOP – PW
Reel of 2000
Reel of 250
Reel of 2000
SN74LVC861APWR
SN74LVC861APWT
SN74LVC861ADGVR
LC861A
TVSOP – DGV
LC861A
(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.
PRODUCTION DATA information is current as of publication date.
Copyright © 1993–2005, 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.