SN54HCT245 Datasheet, PDF (1/16 Pages) Texas Instruments – OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

D Operating Voltage Range of 4.5 V to 5.5 V
D High-Current 3-State Outputs Drive Bus
Lines Directly or Up To 15 LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 14 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Inputs Are TTL-Voltage Compatible
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.
The ’HCT245 devices allow data transmission
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. The output-enable
(OE) input can be used to disable the device so
that the buses are effectively isolated.
SN54HCT245, SN74HCT245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS020E – MARCH 1984 – REVISED AUGUST 2003
SN54HCT245 . . . J OR W PACKAGE
SN74HCT245 . . . DB, DW, N, NS, OR PW 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
SN54HCT245 . . . FK PACKAGE
(TOP VIEW)
A3
3 2 1 20 19
4
18
B1
A4 ₅
17 ^B2
A5 6
16 B3
A6 7
15 B4
A7 8
14 B5
9 10 11 12 13
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube of 20
SN74HCT245N
SN74HCT245N
SOIC – DW
Tube of 25
Reel of 2000
SN74HCT245DW
SN74HCT245DWR
HCT245
–40°C to 85°C
SOP – NS
SSOP – DB
Reel of 2000
Reel of 2000
SN74HCT245NSR
SN74HCT245DBR
HCT245
HT245
Tube of 70
SN74HCT245PW
TSSOP – PW
Reel of 2000 SN74HCT245PWR
HT245
Reel of 250
SN74HCT245PWT
CDIP – J
–55°C to 125°C CFP – W
Tube of 20
Tube of 85
SNJ54HCT245J
SNJ54HCT245W
SNJ54HCT245J
SNJ54HCT245W
LCCC – FK
Tube of 55
SNJ54HCT245FK
SNJ54HCT245FK
† _{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  2003, 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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