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SN74HC244NSR 参数 Datasheet PDF下载

SN74HC244NSR图片预览
型号: SN74HC244NSR
PDF下载: 下载PDF文件 查看货源
内容描述: 八路缓冲器并用3态输出线路驱动器 [OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS]
分类和应用: 驱动器输出元件
文件页数/大小: 16 页 / 531 K
品牌: TI [ TEXAS INSTRUMENTS ]
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SN54HC244, SN74HC244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS130D – DECEMBER 1982 – REVISED AUGUST 2003
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
High-Current Outputs Drive Up To
15 LSTTL Loads
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D
D
D
D
Low Power Consumption, 80-µA Max I
CC
Typical t
pd
= 11 ns
±6-mA
Output Drive at 5 V
Low Input Current of 1
µA
Max
2Y4
1A1
1OE
V
CC
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
1A2
2Y3
1A3
2Y2
1A4
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
2OE
1Y1
2A4
1Y2
2A3
1Y3
SN54HC244 . . . J OR W PACKAGE
SN74HC244 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HC244 . . . FK PACKAGE
(TOP VIEW)
description/ordering information
These octal buffers and line drivers are designed specifically to improve both the performance and density of
3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’HC244
devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low,
the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the
high-impedance state.
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
SN74HC244N
SN74HC244DW
SN74HC244DWR
SN74HC244NSR
SN74HC244DBR
SN74HC244PW
SN74HC244PWR
SN74HC244PWT
SNJ54HC244J
SNJ54HC244W
SNJ54HC244FK
SNJ54HC244J
SNJ54HC244W
SNJ54HC244FK
HC244
TOP-SIDE
MARKING
SN74HC244N
HC244
HC244
HC244
† 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
2Y1
GND
2A1
1Y4
2A2
1