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SN54HCT645 Datasheet(HTML) 1 Page - Texas Instruments

Part No. SN54HCT645
Description  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54HCT645 Datasheet(HTML) 1 Page - Texas Instruments

 
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SN54HCT645, SN74HCT645
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCLS019D − MARCH 1984 − REVISED AUGUST 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Operating Voltage Range of 4.5 V to 5.5 V
D High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads
D Low Power Consumption, 80-µA Max ICC
D Typical tpd = 14 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Inputs Are TTL-Voltage Compatible
D True Logic
SN54HCT645 ...J OR W PACKAGE
SN74HCT645 ...DW, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HCT645 . . . FK 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
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
32
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
description/ordering information
These octal bus transceivers are designed for asynchronous two-way communication between data buses.
These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the
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.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 20
SN74HCT645N
SN74HCT645N
SOIC − DW
Tube of 25
SN74HCT645DW
HCT645
SOIC − DW
Reel of 2000
SN74HCT645DWR
HCT645
−40
°C to 85°C
SOP − NS
Reel of 2000
SN74HCT645NSR
HCT645
−40 C to 85 C
Tube of 70
SN74HCT645PW
TSSOP − PW
Reel of 2000
SN74HCT645PWR
HT645
TSSOP − PW
Reel of 250
SN74HCT645PWT
HT645
CDIP − J
Tube of 20
SNJ54HCT645J
SNJ54HCT645J
−55
°C to 125°C
CFP − W
Tube of 85
SNJ54HCT645W
SNJ54HCT645W
−55 C to 125 C
LCCC − FK
Tube of 55
SNJ54HCT645FK
SNJ54HCT645FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2003, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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.


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