DC Electrical Characteristics (Continued) Note 5: Outputs disabled or " />
參數(shù)資料
型號: 74LCX257SJX
廠商: Fairchild Semiconductor
文件頁數(shù): 4/9頁
文件大?。?/td> 0K
描述: MULTIPLEXER QUAD 2IN LV 16SOP
標準包裝: 2,000
系列: 74LCX
類型: 多路復用器
電路: 4 x 2:1
獨立電路: 1
輸出電流高,低: 24mA,24mA
電壓電源: 單電源
電源電壓: 2 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.209",5.30mm 寬)
供應商設備封裝: 16-SOP
包裝: 帶卷 (TR)
www.fairchildsemi.com
4
74LCX257
DC Electrical Characteristics (Continued)
Note 5: Outputs disabled or 3-STATE only.
AC Electrical Characteristics
Note 6: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Dynamic Switching Characteristics
Capacitance
Symbol
Parameter
Conditions
VCC
TA = 40°C to +85°C
Units
(V)
Min
Max
ICC
Quiescent Supply Current
VI = VCC or GND
2.3
3.6
10
A
3.6V
≤ V
I, VO ≤ 5.5V (Note 5)
2.3
3.6
±10
I
CC
Increase in ICC per Input
VIH = VCC 0.6V
2.3
3.6
500
A
Symbol
Parameter
TA = 40°C to +85°C, RL = 500
Units
VCC = 3.3V ± 0.3V
VCC = 2.7V
VCC = 2.5V ± 0.2V
CL= 50 pF
CL = 50 pF
CL= 30 pF
Min
Max
Min
Max
Min
Max
tPHL
Propagation Delay
1.5
7.0
1.5
8.5
1.5
9.1
ns
tPLH
S
→Z
n
1.57.0
1.58.5
1.59.1
tPHL
Propagation Delay
1.5
6.0
1.5
6.5
1.5
7.2
ns
tPLH
In→Zn
1.56.0
1.56.5
1.57.2
tPZL
Output Enable Time
1.5
7.0
1.5
8.5
1.5
9.1
ns
tPZH
OE
→Z
n
1.57.0
1.58.5
1.59.1
tPLZ
Output Disable Time
1.5
5.5
1.5
6.0
1.5
6.6
ns
tPHZ
OE
→Z
n
1.55.5
1.56.0
1.56.6
tOSHL
Output to Output Skew (Note 6)
1.0
ns
tOSLH
1.0
Symbol
Parameter
Conditions
VCC
TA = 25°C
Units
(V)
Typical
VOLP
Quiet Output Dynamic Peak VOL
CL = 50 pF, VIH = 3.3V, VIL = 0V
3.3
0.8
V
CL = 30 pF, VIH = 2.5V, VIL = 0V
2.5
0.6
VOLV
Quiet Output Dynamic Valley VOL
CL = 50 pF, VIH = 3.3V, VIL = 0V
3.3
0.8
V
CL = 30 pF, VIH = 2.5V, VIL = 0V
2.5
0.6
Symbol
Parameter
Conditions
Typical
Units
CIN
Input Capacitance
VCC = Open, VI = 0V or VCC
7pF
COUT
Output Capacitance
VCC = 3.3V, VI = 0V or VCC
8pF
CPD
Power Dissipation Capacitance
VCC = 3.3V, VI = 0V or VCC, f = 10 MHz
25
pF
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