參數(shù)資料
型號： DM74ALS645A
廠商： Fairchild Semiconductor Corporation
英文描述： Octal Bus Transceivers(八總線收發(fā)器)
中文描述： 八路總線收發(fā)器（八總線收發(fā)器）
文件頁數(shù)： 2/4頁
文件大小： 47K
代理商： DM74ALS645A
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 Free Air Temperature Range
Symbol
Parameter
Note 2:
For I/O ports, I
IH
and I
IL
parameters include the 3-STATE output current (I
OZL
and I
OZH
).
Switching Characteristics
Over Recommended Operating Free Air Temperature Range
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
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Parameter
Min
4.5
2
Typ
5
Max
5.5
Units
V
V
V
mA
mA
°
C
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Operating Free Air Temperature Range
0.8
15
24
70
0
Test Conditions
Min
Typ
Max
Units
V
IC
V
OH
Input Clamp Voltage
HIGH Level Output Voltage
V
CC
=
Min, I
I
=
18 mA
V
CC
=
4.5 to 5.5V
V
CC
=
Max
1.5
V
I
OH
=
0.4 mA
I
OH
=
3 mA
I
OH
=
Max
I
OL
=
12 mA
I
OL
=
24 mA
I/O Ports, V
I
=
5.5V
Control Inputs, V
I
=
7V
V
CC
2
2.4
2
3.2
V
V
OL
LOW Level Output Voltage
V
CC
=
Min
0.25
0.35
0.4
0.5
100
V
I
I
Input Current at
V
CC
=
Max
μ
A
Maximum Input Voltage
HIGH Level Input Current
LOW Level Input Current
100
20
100
112
45
55
I
IH
I
IL
I
O
I
CC
V
CC
=
Max, V
I
=
2.7V (Note 2)
V
CC
=
Max, V
I
=
0.4V (Note 2)
V
CC
=
Max, V
O
=
2.25V
V
CC
=
Max
μ
A
μ
A
mA
Output Drive Current
Supply Current
30
Outputs HIGH
Outputs LOW
30
36
mA
Outputs Disabled
38
58
Symbol
Parameter
From
(Input)
To
Conditions
Min
Max
Units
(Output)
t
PLH
Propagation Delay Time
A or B
B or A
V
CC
=
4.5 to 5.5V,
C
L
=
50 pF,
R1
=
R2
=
500
3
10
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
t
PHL
A or B
B or A
3
10
ns
t
PZH
Output Enable Time to HIGH Level Output
G
A or B
5
20
ns
t
PZL
Output Enable Time to LOW Level Output
G
A or B
5
20
ns
t
PHZ
Output Disable Time from HIGH Level Output
G
A or B
2
10
ns
t
PLZ
Output Disable Time from LOW Level Output
G
A or B
4
15
ns
相關(guān)PDF資料
PDF描述
DM74ALS645AWM Octal Bus Transceivers
DM74ALS645AN Octal Bus Transceivers
DM74ALS645AWMX Single 8-bit Bus Transceiver
DM74ALS646 Octal 3-STATE Bus Transceiver and Register(八總線收發(fā)器和寄存器（三態(tài)輸出）)
DM74ALS646WM Octal 3-STATE Bus Transceiver and Register
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM74ALS645AN 功能描述:總線收發(fā)器 Octal Bus Trans 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
DM74ALS645AN 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74ALS TTL 74ALS645 DIP20 5V
DM74ALS645AN_Q 功能描述:總線收發(fā)器 Octal Bus Trans 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
DM74ALS645AWM 功能描述:總線收發(fā)器 Octal Bus Trans 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
DM74ALS645AWM_Q 功能描述:總線收發(fā)器 Octal Bus Trans 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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