參數(shù)資料
型號(hào): 74AC273TTR
英文描述: CMOS, 12 Bit Multiplying D/A Converter
中文描述: 八路D類觸發(fā)器
文件頁數(shù): 4/8頁
文件大小: 60K
代理商: 74AC273TTR
74AC20
4/8
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 gate)
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
)
WAVEFORM: PROPAGATION DELAYS
(f=1MHz; 50% duty cycle)
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
5.0
4
pF
f
IN
= 10MHz
33
pF
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