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參數資料
| 型號： | SN74LS645N |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | LOW POWER SCHOTTKY |
| 中文描述： | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 141K |
| 代理商： | SN74LS645N |
Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS640/D
These octal bus transceivers are designed for asynchronous
two-way communication between data buses. Control function
implementation minimizes external timing requirements. These
circuits allow data transmission from the A bus to B or from the B bus
to A bus depending upon the logic level of the direction control (DIR)
input. Enable input (G) can disable the device so that the buses are
effectively isolated.
DEVICE
LS640
LS641
LS642
LS645
OUTPUT
3-State
Open-Collector
Open-Collector
3-State
LOGIC
Inverting
True
Inverting
True
FUNCTION TABLE
CONTROL
INPUTS
OPERATION
LS640
LS642
LS641
LS645
G
DIR
L
L
B data to A bus
B data to A bus
L
H
A data to B bus
A data to B bus
H
X
Isolation
Isolation
H = HIGH Level, L = LOW Level, X = Irrelevant
GUARANTEED OPERATING RANGES
(SN74LS640, SN74LS645)
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
4.75
5.0
5.25
V
T
A
Operating Ambient
Temperature Range
0
25
70
°
C
I
OH
Output Current – High
–3.0
mA
–15
mA
I
OL
Output Current – Low
24
mA
GUARANTEED OPERATING RANGES
(SN74LS641, SN74LS642)
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
4.75
5.0
5.25
V
T
A
Operating Ambient
Temperature Range
0
25
70
°
C
V
OH
Output Voltage – High
5.5
V
I
OL
Output Current – Low
24
mA
LOW
POWER
SCHOTTKY
Device
Package
Shipping
ORDERING INFORMATION
SN74LS640N
16 Pin DIP
1440 Units/Box
SN74LS640DW
16 Pin
SOIC
DW SUFFIX
CASE 751D
http://onsemi.com
2500/Tape & Reel
PLASTIC
N SUFFIX
CASE 738
20
1
20
1
SN74LS641N
16 Pin DIP
1440 Units/Box
SN74LS641DW
16 Pin
2500/Tape & Reel
SN74LS642N
16 Pin DIP
1440 Units/Box
SN74LS642DW
16 Pin
2500/Tape & Reel
SN74LS645N
16 Pin DIP
1440 Units/Box
SN74LS645DW
16 Pin
2500/Tape & Reel
相關PDF資料 |
PDF描述 |
|---|---|
| SN74LS640 | LOW POWER SCHOTTKY |
| SN74LS640N | OCTAL BUS TRANSCEIVERS |
| SN74LS641 | OCTAL BUS TRANSCEIVERS |
| SN74LS641DW | OCTAL BUS TRANSCEIVERS |
| SN74LS641N | OCTAL BUS TRANSCEIVERS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74LS645N | 制造商:Texas Instruments 功能描述:UNIVERSAL BUS FUNCTION IC |
| SN74LS645N3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS645NE4 | 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 |
| SN74LS645NS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| SN74LS645NSR | 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 |
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