參數(shù)資料
型號： DM74ALS245
廠商： Fairchild Semiconductor Corporation
英文描述： Octal 3-STATE Bus Transceiver
中文描述： 八路三態(tài)總線收發(fā)器
文件頁數(shù)： 2/6頁
文件大?。?/td> 73K
代理商： DM74ALS245
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. All typical values are measured at V
CC
=
5V, T
A
=
25
°
C.
Symbol
Parameter
Switching Characteristics
(Note 2)
over recommended operating free air temperature range
Symbol
Note 2:
Switching characteristic conditions are V
CC
=
4.5V to 5.5V, R
L
=
500
, C
L
=
50 pF.
Supply Voltage
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
53.0
°
C/W
72.0
°
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
Operating Free Air Temperature
0.8
15
24
70
0
Conditions
Min
Typ
Max
Units
V
IK
V
OH
Input Clamp Voltage
HIGH Level
V
CC
=
4.5V, I
IN
=
18 mA
V
CC
=
4.5V, I
OH
=
3 mA
V
CC
=
4.5V, I
OH
=
Max
I
OH
=
0.4 mA, V
CC
=
4.5V to 5.5V
V
CC
=
4.5V
V
CC
=
5.5V
1.5
V
V
2.4
3.2
Output Voltage
2
2.3
V
V
V
V
CC
2
V
OL
I
I
LOW Level Output Voltage
I
OL
=
24 mA
V
IN
=
7V
V
IN
=
5.5V
0.35
0.5
Input Current at Maximum
Input Voltage
HIGH Level Input Current
Control Inputs
A or B Ports
0.1
0.1
20
0.1
112
45
mA
I
IH
I
IL
I
O
I
CC
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
μ
A
mA
mA
mA
LOW Level Input Current
Output Drive Current
Supply Current
30
Outputs HIGH
30
Outputs LOW
3-STATE
36
38
55
58
mA
mA
Parameter
Circuit Configuration
Min
Max
Units
t
PLH
Propagation Delay Time
3
10
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
t
PHL
3
10
ns
t
PZL
t
PZH
t
PLZ
t
PHZ
Output Enable Time to LOW Level
Output Enable Time to HIGH Level
Output Disable Time from LOW Level
5
5
4
20
20
15
ns
ns
ns
Output Disable Time from HIGH Level
2
10
ns
相關(guān)PDF資料
PDF描述
DM74ALS245AWM Octal 3-STATE Bus Transceiver
DM74ALS245AMSA Octal 3-STATE Bus Transceiver
DM74ALS245AMSAX Single 8-bit Bus Transceiver
DM74ALS245ASJX Single 8-bit Bus Transceiver
DM74ALS245AWMX Single 8-bit Bus Transceiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM74ALS245A 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal 3-STATE Bus Transceiver
DM74ALS245AJ 制造商:National Semiconductor Corporation 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Ceramic, DIP
DM74ALS245AJ/A+ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single 8-bit Bus Transceiver
DM74ALS245AMSA 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
DM74ALS245AMSA_Q 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
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