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參數(shù)資料
| 型號(hào)： | SN74LS642MEL |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20 |
| 封裝： | EIAJ, SOP-20 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 228K |
| 代理商： | SN74LS642MEL |
Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 11
1
Publication Order Number:
SN74LS640/D
SN74LS640, SN74LS641,
SN74LS642, SN74LS645
Octal Bus Transceivers
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
OUTPUT
LOGIC
LS640
3-State
Inverting
LS641
Open-Collector
True
LS642
Open-Collector
Inverting
LS645
3-State
True
FUNCTION TABLE
CONTROL
INPUTS
OPERATION
LS640
LS642
LS641
LS645
G
DIR
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
H = HIGH Level, L = LOW Level, X = Irrelevant
GUARANTEED OPERATING RANGES (SN74LS640, SN74LS645)
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
4.75
5.0
5.25
V
TA
Operating Ambient
Temperature Range
0
25
70
°C
IOH
Output Current High
3.0
mA
15
mA
IOL
Output Current Low
24
mA
GUARANTEED OPERATING RANGES (SN74LS641, SN74LS642)
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
4.75
5.0
5.25
V
TA
Operating Ambient
Temperature Range
0
25
70
°C
VOH
Output Voltage High
5.5
V
IOL
Output Current Low
24
mA
LOW
POWER
SCHOTTKY
http://onsemi.com
PDIP20
N SUFFIX
CASE 738
20
1
20
1
x
= 0, 1, 2, or 5
y
= 0, 1, or 2
A
= Assembly Location
WL = Wafer Lot
Y, YY= Year
WW = Work Week
SN74LS64xN
AWLYYWW
MARKING
DIAGRAMS
LS64y
AWLYYWW
SOIC20
DW SUFFIX
CASE 751D
1
20
1
SOEIAJ20
M SUFFIX
CASE 967
74LS64y
AWLYWW
1
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
ORDERING INFORMATION
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS643-1FNR | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PQCC20 |
| SN74LS641FN | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PQCC20 |
| SN74LS643-1J | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20 |
| SN74LS645FNR | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PQCC20 |
| SN74LS645FN | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PQCC20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS642N | 功能描述:總線收發(fā)器 Octal bus Xcvr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)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(shí)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 |
| SN74LS642NE4 | 功能描述:總線收發(fā)器 Octal bus Xcvr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)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(shí)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 |
| SN74LS642NSR | 功能描述:總線收發(fā)器 Octal bus Xcvr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)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(shí)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 |
| SN74LS642NSRE4 | 功能描述:總線收發(fā)器 Octal bus Xcvr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)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(shí)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 |
| SN74LS642NSRG4 | 功能描述:總線收發(fā)器 Octal bus transceivr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)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(shí)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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