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參數(shù)資料
| 型號： | DM74AS245WM |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal Bus Transceiver with 3-STATE Outputs |
| 中文描述： | AS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 2/5頁 |
| 文件大小： | 63K |
| 代理商： | DM74AS245WM |
www.fairchildsemi.com
2
D
Absolute Maximum Ratings
(Note 1)
Note 1:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Supply Voltage, V
CC
Input Voltage
Control Inputs
I/O Ports
Operating Free Air Temperature Range
Storage Temperature Range
Typical
θ
JA
N Package
M Package
7V
7V
5.5V
0
°
C to 70
°
C
65
°
C to
+
150
°
C
51.5
°
C/W
76.0
°
C/W
Symbol
Parameter
Min
4.5
2
Typ
5
Max
5.5
Units
V
V
V
mA
mA
°
C
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0.8
15
48
70
0
Conditions
Min
Typ
Max
Units
V
IK
V
OH
Input Clamp Voltage
HIGH Level Output
V
CC
=
4.5V, I
IN
=
18 mA
V
CC
=
4.5V, I
OH
=
3 mA
V
CC
=
4.5V, I
OH
=
15 mA
I
OH
=
2 mA, V
CC
=
4.5V to 5.5V
V
CC
=
4.5V, I
OL
=
Max
V
CC
=
5.5V, V
IN
=
7V,
(V
IN
=
5.5V for A or B Ports)
V
CC
=
5.5V,
V
IN
=
2.7V
V
CC
=
5.5V,
V
IN
=
0.4V
V
CC
=
5.5V, V
OUT
=
2.25V
V
CC
=
5.5V
1.2
V
2.4
3.2
Voltage
2
2.3
V
V
CC
2
V
OL
I
I
LOW Level Output Voltage
Input Current at Max
Input Voltage
0.35
0.55
V
0.1
mA
I
IH
HIGH Level Input Current
Control Inputs
A or B Ports
Control Inputs
20
70
0.5
0.75
150
97
μ
A
I
IL
LOW Level Input Current
mA
A or B Ports
I
O
I
CC
Output Drive Current
Supply Current
50
mA
Output HIGH
62
Output LOW
3-STATE
95
79
149
123
mA
Conditions
From
To
Min
Max
Units
t
PLH
Propagation Delay Time
V
CC
=
4.5V to 5.5V,
R
1
=
R
2
=
500
,
C
L
=
50 pF
A or B
B or A
2
7.5
ns
HIGH-to-LOW Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
t
PHL
A or B
B or A
2
7
ns
t
PZL
Output Enable Time to LOW Level
G
A or B
2
8.5
ns
t
PZH
Output Enable Time to HIGH Level
G
A or B
2
9
ns
t
PLZ
Output Disable Time from LOW Level
G
A or B
2
9.5
ns
t
PHZ
Output Disable Time from HIGH Level
G
A or B
2
5.5
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74AS245WMX | 功能描述:總線收發(fā)器 Oct 3-STATE Bus Tran 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 |
| DM74AS257M | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74AS257M_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74AS257MX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74AS257N | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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