SN54ACT245_16 Datasheet, PDF (1/33 Pages) Texas Instruments – OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

D 4.5-V to 5.5-V V_CC Operation
D Inputs Accept Voltages to 5.5 V
SN54ACT245, SN74ACT245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS452E – SEPTEMBER 1994 – REVISED OCTOBER 2002
D Max t_pd of 8 ns at 5 V
D Inputs Are TTL-Voltage Compatible
SN54ACT245 . . . J OR W PACKAGE
SN74ACT245 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54ACT245 . . . FK PACKAGE
(TOP VIEW)
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
20 V_CC
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
3 2 1 20 19
A3 4
18 B1
A4 5
17 B2
A5 6
16 B3
A6 7
15 B4
A7 ⁸
14 _B5
9 10 11 12 13
description/ordering information
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
When the output-enable (OE) is low, the device passes noninverted data from the A bus to the B bus or from
the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. A high on OE disables
the device so that the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74ACT245N
SN74ACT245N
–40°C to 85°C
SOIC – DW
SOP – NS
Tube
Tape and reel
Tape and reel
SN74ACT245DW
SN74ACT245DWR
SN74ACT245NSR
ACT245
ACT245
SSOP – DB
Tape and reel SN74ACT245DBR
AD245
TSSOP – PW
Tape and reel SN74ACT245PWR
AD245
CDIP – J
Tube
SNJ54ACT245J
SNJ54ACT245J
–55°C to 125°C CFP – W
Tube
SNJ54ACT245W
SNJ54ACT245W
LCCC – FK
Tube
SNJ54ACT245K
SNJ54ACT245FK
† _{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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2002, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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