參數(shù)資料
型號： SN74ALS642A-1N
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： ALS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP20
封裝： 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-20
文件頁數(shù)： 13/17頁
文件大小： 543K
代理商： SN74ALS642A-1N
SN74ALS641A, SN74ALS642A, SN74AS641
OCTAL BUS TRANSCEIVERS
WITH OPENCOLLECTOR OUTPUTS
SDAS300 MARCH 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI: All inputs and I/O ports
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN74AS641
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN74AS641
UNIT
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VOH
High-level output voltage
5.5
V
IOL
Low-level output current
64
mA
TA
Operating free-air temperature
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74AS641
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.2
V
IOH
VCC = 4.5 V,
VOH = 5.5 V
0.1
mA
VOL
VCC = 4.5 V,
IOL = 64 mA
0.35
0.55
V
II
Control inputs
VCC = 5.5 V
VI = 7 V
0.1
mA
II
A or B ports
VCC = 5.5 V
VI = 5.5 V
0.1
mA
IIH
Control inputs
VCC = 5.5 V,
VI = 2.7 V
20
A
IIH
A or B ports§
VCC = 5.5 V,
VI = 2.7 V
70
A
IIL
Control inputs
VCC = 5.5 V,
VI = 0.4 V
0.5
mA
IIL
A or B ports§
VCC = 5.5 V,
VI = 0.4 V
0.75
mA
ICC
VCC = 5.5 V
Outputs high
50
82
mA
ICC
VCC = 5.5 V
Outputs low
84
136
mA
All typical values are at VCC = 5 V, TA = 25°C.
§ For I/O ports, the parameters IIH and IIL include the off-state output current.
相關(guān)PDF資料
PDF描述
SN74ALS645A-1NE4 ALS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ALS642A-1NE4 功能描述:總線收發(fā)器 Octal Bus Transceiver O.C. 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
SN74ALS642A-1NS 制造商:Texas Instruments 功能描述:Bus XCVR Single 8-CH Open Collector 20-Pin SOP Bulk
SN74ALS642A-1NSR 功能描述:總線收發(fā)器 Octal Bus Transceiver O.C. 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
SN74ALS642A-1NSRE4 功能描述:總線收發(fā)器 Octal Bus Transceiver O.C. 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
SN74ALS642A-1NSRG4 功能描述:總線收發(fā)器 OCTAL BUS TRANSCEIVER O.C. 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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