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參數資料
| 型號： | SN74LS245DWG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發器 |
| 英文描述： | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 714K |
| 代理商： | SN74LS245DWG4 |
SN54LS245, SN74LS245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDLS146A – OCTOBER 1976 – REVISED FEBRUARY 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 3-State Outputs Drive Bus Lines Directly
D PNP Inputs Reduce dc Loading on Bus
Lines
D Hysteresis at Bus Inputs Improves Noise
Margins
D Typical Propagation Delay Times Port to
Port, 8 ns
TYPE
IOL
(SINK
CURRENT)
IOH
(SOURCE
CURRENT)
SN54LS245
12 mA
–12 mA
SN74LS245
24 mA
–15 mA
description
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 disable the device so that the
buses are effectively isolated.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74LS245N
SOIC – DW
Tube
SN74LS245DW
LS245
0
°C to 70°C
SOIC – DW
Tape and reel
SN74LS245DWR
LS245
SOP – NS
Tape and reel
SN74LS245NSR
74LS245
SSOP – DB
Tape and reel
SN74LS245DBR
LS245
CDIP – J
Tube
SN54LS245J
–55
°Cto125°C
CDIP – J
Tube
SNJ54LS245J
–55
°C to 125°C
CFP – W
Tube
SNJ54LS245W
LCCC – FK
Tube
SN54LS245FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright
2002, Texas Instruments Incorporated
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.
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
910 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
A2
A1
DIR
B7
B6
OE
A8
GND
B8
V
CC
SN54LS245 . . . 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
SN54LS245 ...J OR W PACKAGE
SN74LS245 ... DB, DW, N, OR NS PACKAGE
(TOP VIEW)
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.
相關PDF資料 |
PDF描述 |
|---|---|
| SN54LS245FK | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 |
| SN74LS247NSRE4 | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| SN74LS247NSRG4 | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| SN74LS251NSRG4 | LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16 |
| SNJ54LS251FK | LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, CQCC20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74LS245DWR | 功能描述:總線收發器 Octal Bus RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74LS245DWR2 | 制造商:ON Semiconductor 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin SOIC W T/R |
| SN74LS245DWRG4 | 功能描述:總線收發器 Octal bus Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74LS245M | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| SN74LS245ML1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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