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参数资料
| 型号： | SN54HCT245FK |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | 4.27V Voltage Detector with Active Low Open Collector Output for 5V Systems; Package: Micro8™; No of Pins: 8; Container: Tape and Reel; Qty per Container: 4000 |
| 中文描述： | 八路总线收发器与三态输出 |
| 文件页数： | 1/16页 |
| 文件大小： | 529K |
| 代理商： | SN54HCT245FK |
SN54HCT245, SN74HCT245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS020E – MARCH 1984 – REVISED AUGUST 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Voltage Range of 4.5 V to 5.5 V
High-Current 3-State Outputs Drive Bus
Lines Directly or Up To 15 LSTTL Loads
Low Power Consumption, 80-
μ
A Max I
CC
Typical t
pd
= 14 ns
±
6-mA Output Drive at 5 V
Low Input Current of 1
μ
A Max
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.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–40 C to 85 C
PDIP – N
Tube of 20
SN74HCT245N
SN74HCT245N
SOIC – DW
Tube of 25
SN74HCT245DW
HCT245
Reel of 2000
SN74HCT245DWR
SOP – NS
Reel of 2000
SN74HCT245NSR
HCT245
SSOP – DB
Reel of 2000
SN74HCT245DBR
HT245
TSSOP – PW
Tube of 70
SN74HCT245PW
HT245
Reel of 2000
SN74HCT245PWR
Reel of 250
SN74HCT245PWT
–55 C to 125 C
CDIP – J
Tube of 20
SNJ54HCT245J
SNJ54HCT245J
CFP – W
Tube of 85
SNJ54HCT245W
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.
3
2
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
A
A
D
B
B
O
A
G
B
V
SN54HCT245 . . . 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
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54HCT245 . . . J OR W PACKAGE
SN74HCT245 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
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.
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.
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