參數(shù)資料
型號： DM74LS645
廠商： Fairchild Semiconductor Corporation
英文描述： Octal Bus Transceiver(八總線驅(qū)動器)
中文描述： 八路總線收發(fā)器（八總線驅(qū)動器）
文件頁數(shù)： 2/5頁
文件大?。?/td> 52K
代理商： DM74LS645
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
Note 2:
Voltage values are with respect to the network ground terminal.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 3:
For conditions shown as Min or Max, use the appropriate value specified under Recommended Operating Conditions.
Note 4:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 5:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
0
°
C to
+
70
°
C
55
°
C to
+
150
°
C
Symbol
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
mA
mA
°
C
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage (Note 2)
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0.6
15
24
70
0
Symbol
Parameter
Conditions (Note 3)
Min
Typ
Max
Units
(Note 4)
V
I
H
YS
Input Clamp Voltage
Hysteresis (V
T
+
V
)
A or B Input
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min
1.5
V
V
0.2
0.4
V
OH
HIGH Level Output Voltage
V
CC
=
Min, V
IH
=
2V,
V
IL
=
Max
V
CC
=
Min, V
IH
=
2V,
V
IL
=
Max
V
CC
=
Max, G at 2V,
V
O
=
2.7V
V
CC
=
Max, G at 2V
V
O
=
0.4V
V
CC
=
Max
I
OH
=
3 mA
I
OH
=
Max
I
OL
=
12 mA
I
OL
=
24 mA
2.4
2
3.4
V
V
OL
LOW Level Output Voltage
0.25
0.4
V
0.35
0.5
I
OZH
Off-State Output Current,
HIGH Level Voltage Applied
20
μ
A
I
OZL
Off-State Output Current,
LOW Level Voltage Applied
Input Current at
400
μ
A
I
I
A or B
V
I
=
5.5V
V
I
=
7V
0.1
mA
Maximum Input Voltage
HIGH Level Input Current
LOW Level Input Current
Short Circuit Output Current (Note 5) V
CC
=
Max
Total Supply
Current
DIR or G
0.1
20
0.4
225
70
90
I
IH
I
IL
I
OS
I
CC
V
CC
=
Max, V
IH
=
2.7
V
CC
=
Max, V
IL
=
0.4V
μ
A
mA
40
mA
Outputs HIGH
Outputs LOW
V
CC
=
Max,
Outputs Open
48
62
mA
Outputs at Hi-Z
64
95
相關(guān)PDF資料
PDF描述
DM74LS645WMX Single 8-bit Bus Transceiver
DM74LS645N Octal Bus Transceiver
DM74LS645WM Octal Bus Transceiver
DM74LS670 3-STATE 4-by-4 Register File(三態(tài)輸出的4字/4位的寄存器堆)
DM74LS670MX Register File
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM74LS645N 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
DM74LS645WM 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
DM74LS645WMX 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
DM74LS670 WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
DM74LS670M 功能描述:寄存器 3-STATE 4-by-4 Reg RoHS:否 制造商:NXP Semiconductors 邏輯類型:CMOS 邏輯系列:HC 電路數(shù)量:1 最大時鐘頻率:36 MHz 傳播延遲時間: 高電平輸出電流:- 7.8 mA 低電平輸出電流:7.8 mA 電源電壓-最大:6 V 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-38 封裝:Tube
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