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CD74HCT166 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
描述:
高速 CMOS 逻辑 8 位并行输入/串行输出移位寄存器
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CD74HCT166数据手册
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6
Output Transition Time
(Figure 3)
t
TLH
, t
THL
C
L
= 50pF 2 - 75 95 110 ns
4.5 - 15 19 22 ns
6 - 13 16 19 ns
Propagation Delay
MR to Output
(Figure 3)
t
PHL
C
L
= 50pF 2 - 160 200 240 ns
4.5 - 32 40 48 ns
6 - 27 34 41 ns
Input Capacitance C
I
---1010 10pF
Power Dissipation
Capacitance
(Notes 3, 4)
C
PD
- 5 41 - - - pF
HCT TYPES
Propagation Delay,
Clock to Output
(Figure 4)
t
PLH
, t
PHL
C
L
= 50pF 4.5 - 40 50 60 ns
Output Transition Time
(Figure 4)
t
TLH
, t
THL
C
L
= 50pF 4.5 - 15 19 22 ns
Propagation Delay
MR to Output (Figure 4)
t
PHL
C
L
= 50pF 4.5 - 40 50 60 ns
Input Capacitance C
I
---1010 10pF
NOTES:
3. C
PD
is used to determine the dynamic power consumption, per gate.
4. P
D=
C
PD
V
CC
2
f
i
+ ∑(C
L
V
CC
2
+f
O
) where f
i
= Input Frequency, f
O
= Output Frequency, C
L
= Output Load Capacitance, V
CC
= Supply
Voltage.
Switching Specifications Input t
r
, t
f
= 6ns (Continued)
PARAMETER SYMBOL
TEST
CONDITIONS V
CC
(V)
25
o
C -40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSTYP MAX MAX MAX
Test Circuits and Waveforms
NOTE: Outputs should be switching from 10% V
CC
to 90% V
CC
in
accordance with device truth table. For f
MAX
, input duty cycle = 50%.
FIGURE 1. HC CLOCK PULSE RISE AND FALL TIMES AND
PULSE WIDTH
NOTE: Outputs should be switching from 10% V
CC
to 90% V
CC
in
accordance with device truth table. For f
MAX
, input duty cycle = 50%.
FIGURE 2. HCT CLOCK PULSE RISE AND FALL TIMES AND
PULSE WIDTH
CLOCK
90%
50%
10%
GND
V
CC
t
r
C
L
t
f
C
L
50%
50%
t
WL
t
WH
10%
t
WL
+ t
WH
=
f
CL
I
CLOCK
2.7V
1.3V
0.3V
GND
3V
t
r
C
L
= 6ns
t
f
C
L
= 6ns
1.3V
1.3V
t
WL
t
WH
0.3V
t
WL
+ t
WH
=
fC
L
I
CD54HC166, CD74HC166, CD54HCT166, CD74HCT166
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