SN74ALVC245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCES271D–APRIL 1999–REVISED JULY 2004
FEATURES
•
•
±24-mA Output Drive at 3.3 V
•
Operates from 1.65 V to 3.6 V
Latch-Up Performance Exceeds 250 mA Per
JESD 17
•
Max tpd of 3.4 ns at 3.3 V
DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
1
20
19
18
17
16
15
14
13
12
2
3
4
5
6
7
8
9
A1
A2
A3
A4
A5
A6
A7
A8
OE
B1
B2
B3
B4
B5
B6
B7
A3
A4
A5
A6
A7
A8
GND
10
11
DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVC245 is designed for asynchronous communication between data buses. The device transmits
data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are
effectively isolated.
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.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74ALVC245RGYR
SN74ALVC245DW
TOP-SIDE MARKING
VA245
QFN - RGY
SOIC - DW
SOP - NS
Tape and reel
Tube
ALVC245
ALVC245
VA245
Tape and reel
Tape and reel
Tube
SN74ALVC245DWR
SN74ALVC245NSR
-40°C to 85°C
SN74ALVC245PW
TSSOP - PW
TVSOP - DGV
Tape and reel
Tape and reel
SN74ALVC245PWR
SN74ALVC245DGVR
VA245
(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 © 1999–2004, 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.