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參數(shù)資料
| 型號： | 74LCX244BQX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Outputs |
| 中文描述： | LVC/LCX/Z SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PQCC20 |
| 封裝： | 2.50 X 4.50 MM, LEAD FREE, MO-241AC, DQFN-20 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 66K |
| 代理商： | 74LCX244BQX |
74LCX244
4/9
DYNAMIC SWITCHING CHARACTERISTICS
1) Number of outputs 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 ofthe difference between the actual propagation delayfor anytwo 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 TestCircuit). Averageoperating current canbe obtained by the following equation. I
CC(opr)
=C
PD
xV
CC
x f
IN
+I
CC
/8 (percircuit)
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
2.7
50
500
2.5
1.5
1.5
1.5
1.5
1.5
1.5
7.5
6.5
9.0
8.0
8.0
7.0
1.0
1.5
1.5
1.5
1.5
1.5
1.5
8.2
7.1
10.5
9.2
9.2
7.7
1.0
ns
3.0 to 3.6
2.7
3.0 to 3.6
2.7
3.0 to 3.6
3.0 to 3.6
t
PZL
t
PZH
Output Enable Time
50
500
2.5
ns
t
PLZ
t
PHZ
Output Disable Time
50
500
2.5
ns
t
OSLH
t
OSHL
Output ToOutput
Skew Time (note1,
2)
50
500
2.5
ns
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25
°
C
Min.
Typ.
Max.
C
IN
C
OUT
C
PD
Input Capacitance
3.3
3.3
3.3
V
IN
= 0 to V
CC
V
IN
= 0 to V
CC
f
IN
= 10MHz
V
IN
= 0 or V
CC
6
pF
pF
Output Capacitance
Power Dissipation Capacitance
(note 1)
10
34
pF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LCX244FT | 功能描述:Buffer, Non-Inverting 2 Element 4 Bit per Element Push-Pull Output 20-TSSOP 制造商:toshiba semiconductor and storage 系列:74LCX 包裝:剪切帶（CT） 零件狀態(tài):有效 邏輯類型:緩沖器，非反向 元件數(shù):2 每元件位數(shù):4 輸入類型:- 輸出類型:推挽式 電流 - 輸出高，低:24mA，24mA 電壓 - 電源:1.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商器件封裝:20-TSSOP 標準包裝:1 |
| 74LCX244M | 功能描述:緩沖器和線路驅(qū)動器 Octal Bus Buffer RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74LCX244MSA | 功能描述:緩沖器和線路驅(qū)動器 Buffer/Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74LCX244MSA_Q | 功能描述:緩沖器和線路驅(qū)動器 Buffer/Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74LCX244MSAX | 功能描述:緩沖器和線路驅(qū)動器 Buffer/Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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