參數資料
型號： DM74LS244N
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Octal D-Type Flip-Flop with 3-STATE Outputs; Package: SOIC-Wide; No of Pins: 20; Container: Tape & Reel
中文描述： LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20
封裝： 0.300 INCH, PLASTIC, MS-001, DIP-20
文件頁數： 2/6頁
文件大小： 65K
代理商： DM74LS244N
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 (unless otherwise noted)
Note 2:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 3:
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
65
°
C to
+
150
°
C
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Parameter
Min
4.75
2
Nom
5
Max
5.25
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
Free Air Operating Temperature
0.8
15
24
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
HYS
Input Clamp Voltage
Hysteresis (V
T
+
V
T
)
Data Inputs Only
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
=
Min
V
IL
=
Max, I
OH
=
1 mA
V
CC
=
Min, V
IH
=
Min
V
IL
=
Max, I
OH
=
3 mA
V
CC
=
Min, V
IH
=
Min
V
IL
=
0.5V, I
OH
=
Max
V
CC
=
Min
V
IL
=
Max
V
IH
=
Min
V
CC
=
Max
V
IL
=
Max
V
IH
=
Min
2.7
2.4
3.4
V
2
V
OL
LOW Level Output Voltage
I
OL
=
12 mA
I
OL
=
Max
0.4
0.5
V
I
OZH
Off-State Output Current,
HIGH Level Voltage Applied
V
O
=
2.7V
20
μ
A
I
OZL
Off-State Output Current,
LOW Level Voltage Applied
Input Current at Maximum
V
O
=
0.4V
20
μ
A
I
I
V
CC
=
Max
V
I
=
7V
0.1
mA
Input Voltage
HIGH Level Input Current
LOW Level Input Current
I
IH
I
IL
I
OS
I
CC
V
CC
=
Max
V
CC
=
Max
V
CC
=
Max (Note 3)
V
CC
=
Max,
Outputs Open
V
I
=
2.7V
V
I
=
0.4V
20
200
225
23
46
μ
A
μ
A
mA
0.5
40
Short Circuit Output Current
Supply Current
Outputs HIGH
Outputs LOW
13
27
mA
Outputs Disabled
32
54
相關PDF資料
PDF描述
DM74LS244 Octal 3-STATE Buffer/Line Driver/Line Receiver(八3態(tài)輸出緩沖器/線驅動器/線接收器)
DM74LS244SJ Octal D-Type Flip-Flop with 3-STATE Outputs; Package: SOP; No of Pins: 20; Container: Rail
DM74LS244WM Octal 3-STATE Buffer/Line Driver/Line Receiver
DM74LS244SJX Dual 4-Bit Non-Inverting Buffer/Driver
DM74LS244WMX Dual 4-Bit Non-Inverting Buffer/Driver
相關代理商/技術參數
參數描述
DM74LS244SJ 功能描述:緩沖器和線路驅動器 Oct 3-STATE Bf/Ln Dr RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74LS244SJX 功能描述:緩沖器和線路驅動器 Oct 3-STATE Bf/Ln Dr RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74LS244WM 功能描述:緩沖器和線路驅動器 Oct 3-STATE Bf/Ln Dr RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74LS244WMX 功能描述:緩沖器和線路驅動器 Oct 3-STATE Bf/Ln Dr RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
DM74LS245 WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
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