參數(shù)資料
型號(hào)： M54HCT245D
廠商： STMICROELECTRONICS
元件分類： 總線收發(fā)器
英文描述： HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20
封裝： CERAMIC, DIP-20
文件頁(yè)數(shù)： 6/10頁(yè)
文件大?。?/td> 235K
代理商： M54HCT245D
M54HCT245
5/10
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 circuit)
Figure 3: Test Circuit
CL = 50pF/150pF or equivalent (includes jig and probe capacitance)
R1 =1K or equivalent
RT =ZOUT of pulse generator (typically 50)
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
DIR, G
510
10
pF
CI/OUT
Output
Capacitance
An, Bn
13
pF
CPD
Power Dissipation
Capacitance (note
1)
41
pF
TEST
SWITCH
tPLH,tPHL
Open
tPZL,tPLZ
VCC
tPZH,tPHZ
GND
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