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 “Recom-
mended Operating Conditions” table will define the conditions for actual device operation.
Note 3:
I
O
Absolute Maximum Rating must be observed.
Note 4:
Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
OH
Parameter
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
I
OH
I
OH
I
OH
I
OH
I
OH
V
OL
LOW Level Output Voltage
I
OL
I
OL
I
OL
I
OL
I
I
I
OZ
I
OFF
Input Leakage Current
3-STATE Output Leakage
Power-Off Leakage Current
Conditions
V
CC
(V)
2.3
2.7
2.7
3.6
2.3
2.7
2.7
3.6
T
A
Min
1.7
2.0
0.7
0.8
V
CC
- 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
V
V
40
q
C to
85
q
C
Max
Units
V
V
100
P
A
8 mA
12 mA
18 mA
24 mA
100
P
A
8 mA
12 mA
24 mA
2.3
3.6
2.3
2.7
3.0
3.0
2.3
3.6
2.3
2.7
3.0
3.0
2.3 - 3.6
2.3 - 3.6
0
I
OL
16 mA
0
d
V
I
d
5.5V
0
d
V
O
d
5.5V
V
I
V
IH
or V
IL
5.5V
V
I
or V
O
r
5.0
r
5.0
10
P
A
P
A
P
A
3
www.fairchildsemi.com
74LCX241
DC Electrical Characteristics
Symbol
I
CC
Parameter
Quiescent Supply Current
Increase in I
CC
per Input
V
I
V
IH
(Continued)
V
CC
(V)
2.3 - 3.6
2.3 - 3.6
2.3 - 3.6
T
A
Min
Conditions
V
CC
or GND
V
CC
0.6v
40
q
C to
85
q
C
Max
10
Units
3.6V
d
V
I
, V
O
d
5.5V (Note 5)
r
10
500
P
A
P
A
'
I
CC
Note 5:
Outputs disabled or 3-STATE only.
AC Electrical Characteristics
T
A
Symbol
Parameter
V
CC
C
L
Min
t
PHL
t
PLH
t
PZL
t
PZH
t
PLZ
t
PHZ
t
OSHL
t
OSLH
Output to Output Skew (Note 6)
Output Disable Time
Propagation Delay
Data to Output
Output Enable Time
1.5
1.5
1.5
1.5
1.5
1.5
3.3V
r
0.3V
50 pF
Max
6.5
6.5
8.0
8.0
7.0
7.0
1.0
1.0
40
q
C to
85
q
C, R
L
V
CC
C
L
Min
1.5
1.5
1.5
1.5
1.5
1.5
2.7V
50 pF
Max
7.5
7.5
9.0
9.0
8.0
8.0
500
:
V
CC
C
L
Min
1.5
1.5
1.5
1.5
1.5
1.5
2.5V
r
0.2V
30 pF
Max
7.8
7.8
10.0
10.0
8.4
8.4
ns
ns
ns
ns
Units
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 (t
OSHL
) or LOW-to-HIGH (t
OSLH
).
Dynamic Switching Characteristics
Symbol
V
OLP
V
OLV
Parameter
Quiet Output Dynamic Peak V
OL
Quiet Output Dynamic Valley V
OL
C
L
C
L
C
L
C
L
50 pF, V
IL
30 pF, V
IH
50 pF, V
IL
30 pF, V
IH
Conditions
3.3V, V
IL
2.5V, V
IL
3.3V, V
IL
2.5V, V
IL
0V
0V
0V
0V
V
CC
(V)
3.3
2.5
3.3
2.5
T
A
25
q
C
0.8
0.6
Typical
Units
V
V
0.8
0.6
Capacitance
Symbol
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Parameter
V
CC
V
CC
V
CC
Open, V
I
3.3V, V
I
3.3V, V
I
Conditions
0V or V
CC
0V or V
CC
0V or V
CC
, f
10 MHz
Typical
7
8
25
Units
pF
pF
pF
www.fairchildsemi.com
4
74LCX241
AC LOADING and WAVEFORMS
Generic for LCX Family
FIGURE 1. AC Test Circuit (C
L
includes probe and jig capacitance)
Test
t
PLH
, t
PHL
t
PZL
, t
PLZ
t
PZH
,t
PHZ
Switch
Open
6V at V
CC
3.3
r
0.3V
V
CC
x 2 at V
CC
2.5
r
0.2V
GND
Waveform for Inverting and Non-Inverting Functions
U-Boot 2013.01.01 (Oct 24 2013 - 17:40:22)
CPU : Altera SOCFPGA Platform
BOARD : Altera SOCFPGA Cyclone V Board
DRAM: 1 GiB
MMC: ALTERA DWMMC: 0
In: serial
Out: s ......
1. 内容简介 在2015年，苹果新一代的MacBook和Apple Watch皆搭载压力触控感应技术，它被Apple称为Force Touch，用户每次按下触控板之后除了可以在萤幕看见视觉回馈，它同时能够分辨出用户点按的力度强弱来做出一系列的相关操控与应用。而本文将介绍以HY16F184内建高精密Sigma-delta 24 Bit ADC搭配Uneo Force Sensor来实现一...[详细]
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