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參數(shù)資料
| 型號： | M74HC244B1R |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | HC/UH SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 200K |
| 代理商： | M74HC244B1R |
M74HC244
4/10
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
CAPACITIVE CHARACTERISTICS
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per circuit)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH tTHL Output Transition
Time
2.0
50
25
60
75
90
ns
4.5
7
121918
6.0
6
101315
tPLH tPHL Propagation Delay
Time
2.0
50
36
90
115
135
ns
4.5
12
18
23
27
6.0
10
15
20
23
2.0
150
51
130
165
195
ns
4.5
17
26
33
39
6.0
14
22
28
33
tPZL tPZH High Impedance
Output Enable
Time
2.0
50
RL = 1 K
48
125
155
190
ns
4.5
16
25
31
38
6.0
14
21
25
32
2.0
150
RL = 1 K
63
165
205
250
ns
4.5
21
33
41
50
6.0
18
28
35
43
tPLZ tPHZ High Impedance
Output Disable
Time
2.0
50
RL = 1 K
32
125
155
190
ns
4.5
15
25
31
38
6.0
14
21
26
32
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
5.0
5
101010
pF
COUT
Output
Capacitance
5.0
10
pF
CPD
Power Dissipation
Capacitance (note
1)
5.0
33
pF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M74HC244B1R | 制造商:STMicroelectronics 功能描述:IC 74HC CMOS 74HC244 DIP20 6V |
| M74HC244C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HC240: INVERTED - HC241/244 NON INVERTED OCTAL BUS BUFFER WITH 3 STATE OUTPUTS |
| M74HC244DWP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Non-Inverting Buffer/Driver |
| M74HC244F1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HC240: INVERTED - HC241/244 NON INVERTED OCTAL BUS BUFFER WITH 3 STATE OUTPUTS |
| M74HC244FP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Non-Inverting Buffer/Driver |
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