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M54HC573D 数据表(PDF) 6 Page - STMicroelectronics

部件名 M54HC573D
功能描述  RAD-HARD OCTAL D-TYPE LATCH WITH 3 STATE OUTPUT NON INVERTING
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M54HC573D 数据表(HTML) 6 Page - STMicroelectronics

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Table 7: Capacitive Characteristics
1) CPD 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. ICC(opr) =CPD xVCC xfIN +ICC/8 (per Flip
Flop) and the CPD when n pcs of Flip Flop operate, can be gained by the following equation: CPD(TOTAL) =33+18 x n (pF)
Figure 4: Test Circuit
CL = 50pF/150pF or equivalent (includes jig and probe capacitance)
R1 =1KΩ or equivalent
RT =ZOUT of pulse generator (typically 50Ω)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA =25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
5
101010
pF
COUT
Output
Capacitance
10
pF
CPD
Power Dissipation
Capacitance (note
1)
51
pF
TEST
SWITCH
tPLH,tPHL
Open
tPZL,tPLZ
VCC
tPZH,tPHZ
GND



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