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參數(shù)資料
| 型號： | 74ACT74TTR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR |
| 中文描述： | 雙D型觸發(fā)器與預(yù)置和清除 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大小： | 382K |
| 代理商： | 74ACT74TTR |
74ACT74
5/12
CAPACITIVE CHARACTERISTICS
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/2 (per
Flip-Flop)
TEST CIRCUIT
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
L
= R
1
= 500
or equivalent
R
T
= Z
OUT
of pulse generator (typically 50
)
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance (note
1)
5.0
3
pF
5.0
f
IN
= 10MHz
43
pF
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