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參數(shù)資料
| 型號(hào)： | LC74FCT16425T |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Fast 16-Bit CMOS Bidirectional Transceiver(快速16位CMOS雙向收發(fā)器) |
| 中文描述： | 快速16位的CMOS雙向收發(fā)器（快速16位的CMOS雙向收發(fā)器） |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 129K |
| 代理商： | LC74FCT16425T |
Power Supply Current Characteristics
Note: 1. Values stipulated in the electrical characteristics for the corresponding product must be used for the test conditions for the maximum and minimum
values.
2. Typical values are values for V
CC
= 5.0 V, and at an ambient temperature of +25°C.
3. For the TTL drive inputs (V
IN
= 3.4 V), connect all the other inputs to V
CC
or GND.
4. Although this parameter cannot be directly measured, it is provided for calculating the total power dissipation.
5. The values for these conditions are values with respect to the I
CC
rating. Although these values are guaranteed, they are not tested.
6. I
C
+ I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
+ I
CC
+
I
CC
, D
H
N
T
+ I
CCD
(f
CP
N
CP
/2 + fiNi)
I
CC
= Quiescent current (I
CCL
, I
CCH
, and I
CCZ
)
I
CC
= Supply current for the high-level TTL inputs (V
IN
= 3.4 V)
D
H
= Duty cycle for the high-level TTL inputs
N
T
= The number of TTL inputs in D
H
I
CCD
= Operating current due to input transition pairs (HLH or LHL)
f
CP
= Clock frequency for register devices (zero for non-register devices)
N
CP
= The number of clocks input in f
CP
fi = Input frequency
Ni = The number of inputs in fi.
LC74FCT16245T/162245T Switching Characteristics
in the Operating Ranges
Note: 1. See the figures for the test circuit and waveforms.
2. Although the minimum values are guaranteed, the transmission delay is not tested.
3. Although these items are guaranteed, they are not tested.
4. The skew between two outputs in the same package switched in the same direction. This parameter is a design guarantee.
No. 4627-5/8
LC74FCT16245T, 74FCT162245T
Parameter
Symbol
Conditions
*
1
min
typ
*
2
max
Unit
Quiescent current
high-level TTL inputs
I
CC
V
CC
= max, V
IN
= 3.4 V
*
3
0.5
1.5
μA
V
CC
= max, outputs open,
×
OE =
×
DIR = GND,
toggling a single input,
50% duty cycle
Operating supply current
*
4
I
CCD
V
IN
= V
CC
,
V
IN
= GND
100
160
μA/MHz
V
CC
= max, outputs open,
fi = 10 MHz,
×
OE =
×
DIR = GND, V
IN
= GND
toggling a single bit,
50% duty cycle
V
IN
= V
CC
,
0.7
2.5
V
IN
= 3.4 V,
V
IN
= GND
V
IN
= V
CC
,
0.9
3.3
Total supply current
*
6
I
C
mA
V
CC
= max, outputs open,
fi = 2.5 MHz,
×
OE =
×
DIR = GND, V
IN
= GND
toggling a 16 bits,
50% duty cycle
2.5
5.5
*
5
V
IN
= 3.4 V,
V
IN
= GND
6.5
17.5
*
5
Parameter
Symbol
Conditions
*
1
min
typ
max
Unit
Transmission delay
(From A to B or from B to A)
t
PLH
,
t
PHL
t
PZH
*
1
,
t
PZL
*
1
t
PHZ
*
1
,
t
PLZ
*
1
t
PZH
*
2
,
t
PZL
*
2
t
PHZ
*
2
,
t
PLZ
*
2
t
SK
(O)
1.5
7.0
ns
Output enable time
(From
×
OE to A or B)
Output disable time
(From
×
OE to A or B)
Output enable time
(From
×
DIRS to A or B
*
3
)
Output disable time
(From
×
DIRS to A or B
*
3
)
Output skew
*
4
1.5
12.0
ns
1.5
7.5
ns
C
L
= 50 pF, R
L
= 500
1.5
9.5
ns
1.5
7.5
ns
0.5
ns
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