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參數(shù)資料
| 型號(hào)： | DM74ALS646NT |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal 3-STATE Bus Transceiver and Register |
| 中文描述： | ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDIP24 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, DIP-24 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 56K |
| 代理商： | DM74ALS646NT |
3
www.fairchildsemi.com
D
Absolute Maximum Ratings
(Note 2)
Note 2:
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 3:
↑
=
With reference to the LOW-to-HIGH transition of the respective clock.
Electrical Characteristics
over recommended free air temperature range
Note 4:
For I/O ports the 3-STATE output currents (I
OZH
and I
OZL
) are included in the I
IH
and I
IL
parameters.
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
44.5
°
C/W
80.5
°
C/W
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
f
CLK
t
W
t
SU
t
H
T
A
Parameter
Min
Nom
5
Max
5.5
Units
V
V
V
mA
mA
MHz
ns
ns
ns
°
C
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Clock Frequency
Pulse Duration, Clocks LOW or HIGH
Data Setup Time, A before CAB or B before CBA (Note 3)
Data Hold Time, A after CAB or B after CBA (Note 3)
Free Air Operating Temperature
0.8
15
24
40
10
↑
0
↑
70
Symbol
Parameter
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
=
4.5V to 5.5V
V
CC
=
Min
1.2
V
I
OH
=
0.4 mA
I
OH
=
3 mA
I
OH
=
Max
I
OL
=
12 mA
I
OL
=
24 mA
I
OL
=
48 mA
I/O Ports, V
I
=
5.5V
Control Inputs, V
I
=
7V
V
CC
2
2.4
3.2
V
2
V
OL
LOW Level
Output Voltage
V
CC
=
Min
0.25
0.35
0.4
0.5
V
0.35
0.5
100
100
I
I
Input Current at Maximum
Input Voltage
V
CC
=
Max
μ
A
I
IH
I
IL
HIGH Level Input Current
LOW Level
Input Current
V
CC
=
Max, V
I
=
2.7V (Note 4)
V
CC
=
Max,
V
I
=
0.4V, (Note 4)
V
CC
=
Max, V
O
=
2.25V
V
CC
=
Max
20
200
200
112
76
88
μ
A
Control Inputs
I/O Ports
μ
A
I
O
I
CC
Output Drive Current
Supply Current
30
mA
Outputs HIGH
Outputs LOW
47
55
mA
Outputs Disabled
55
88
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74ALS646NT_Q | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg 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 |
| DM74ALS646WM | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg 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 |
| DM74ALS646WMX | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg 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 |
| DM74ALS646WMX | 制造商:Fairchild Semiconductor Corporation 功能描述:IC UNIVERSAL BUS FUNCTIONS LOGIC ROHS C |
| DM74ALS648 WAF | 制造商:Texas Instruments 功能描述: |
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