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SN74HC245N 参数 Datasheet PDF下载

SN74HC245N图片预览
型号: SN74HC245N
PDF下载: 下载PDF文件 查看货源
内容描述: 八路总线收发器与3态输出 [OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS]
分类和应用: 总线驱动器总线收发器触发器逻辑集成电路光电二极管输出元件PC
文件页数/大小: 16 页 / 531 K
品牌: TI [ TEXAS INSTRUMENTS ]
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SN54HC245, SN74HC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
High-Current 3-State Outputs Drive Bus
Lines Directly or Up To 15 LSTTL Loads
Low Power Consumption, 80-µA Max I
CC
SN54HC245 . . . J OR W PACKAGE
SN74HC245 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
D
D
D
Typical t
pd
= 12 ns
±6-mA
Output Drive at 5 V
Low Input Current of 1
µA
Max
SN54HC245 . . . FK PACKAGE
(TOP VIEW)
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
A2
A1
DIR
VCC
OE
A3
A4
A5
A6
A7
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
B1
B2
B3
B4
B5
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 devices allow data transmission 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 that the buses are effectively isolated.
ORDERING INFORMATION
TA
PDIP – N
SOIC – DW
–40°C 85°C
–40 C to 85 C
SOP – NS
SSOP – DB
TSSOP – PW
CDIP – J
–55°C 125°C
–55 C to 125 C
CFP – W
LCCC – FK
PACKAGE†
Tube of 20
Tube of 25
Reel of 2000
Reel of 2000
Reel of 2000
Tube of 70
Reel of 2000
Reel of 250
Tube of 20
Tube of 85
Tube of 55
ORDERABLE
PART NUMBER
SN74HC245N
SN74HC245DW
SN74HC245DWR
SN74HC245NSR
SN74HC245DBR
SN74HC245PW
SN74HC245PWR
SN74HC245PWT
SNJ54HC245J
SNJ54HC245W
SNJ54HC245FK
SNJ54HC245J
SNJ54HC245W
SNJ54HC245FK
HC245
TOP-SIDE
MARKING
SN74HC245N
HC245
HC245
HC245
† 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.
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.
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
A8
GND
B8
B7
B6
1