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74LVC244A
4/9
DYNAMIC SWITCHING CHARACTERISTICS
1) Number of output defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is
measured in the LOW state.
AC ELECTRICAL CHARACTERISTICS
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (t
OSLH
= | t
PLHm
- t
PLHn
|, t
OSHL
= | t
PHLm
- t
PHLn
|
2) Parameter guaranteed by design
CAPACITIVE CHARACTERISTICS
1) C
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. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/n (per circuit)
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25 °C
Min.
Typ.
Max.
V
OLP
V
OLV
Dynamic Low Level Quiet
Output (note 1)
3.3
C
L
= 50pF
V
IL
= 0V, V
IH
= 3.3V
0.8
-0.8
V
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
C
L
(pF)
R
L
(
)
t
s
=
t
r
(ns)
-40 to 85 °C
-55 to 125 °C
Min.
Max.
Min.
Max.
t
PLH
t
PHL
Propagation Delay
Time
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
30
30
50
50
30
30
50
50
30
30
50
50
1000
500
500
500
1000
500
500
500
1000
500
500
500
2.0
2.0
2.5
2.5
2.0
2.0
2.5
2.5
2.0
2.0
2.5
2.5
9.0
7.9
6.9
5.9
11
9.6
8.6
7.6
9.0
7.8
6.8
6.5
1
12
10.5
8.3
7.1
14.3
12.5
10.3
9.1
11.7
10.1
8.2
7.8
1
ns
1.5
1
t
PZL
t
PZH
Output Enable Time
ns
1
1
t
PLZ
t
PHZ
Output Disable Time 1.65 to 1.95
ns
2.3 to 2.7
2.7
3.0 to 3.6
2.7 to 3.6
2
2
t
OSLH
t
OSHL
Output To Output
Skew Time (note1,
2)
ns
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25 °C
Min.
Typ.
Max.
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
(note 1)
4
28
30
34
pF
1.8
2.5
3.3
f
IN
= 10MHz
pF
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 74LVC244ABQ | 功能描述:緩沖器和線路驅動器 3.3V BUF/LN DRVR NON-INV 3S 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 |
| 74LVC244ABQ,115 | 功能描述:緩沖器和線路驅動器 3.3V BUF/LN DRVR 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 |
| 74LVC244ABQ-Q100X | 制造商:NXP Semiconductors 功能描述:74LVC244ABQ-Q100/DHVQFN20/REEL - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC BUFFER/LINE DVR OCT 20DHVQFN |
| 74LVC244ABX,115 | 功能描述:緩沖器和線路驅動器 CMOS 8CH NON-INVERT 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 |
| 74LVC244ABX/S703,1 | 制造商:NXP Semiconductors 功能描述:74LVC244ABX/DHXQFN20(U/REEL7//S703 - Tape and Reel |
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