參數(shù)資料
型號: M74HCT540B1R
廠商: STMICROELECTRONICS
元件分類: 總線收發(fā)器
英文描述: HCT SERIES, 8-BIT DRIVER, INVERTED OUTPUT, PDIP20
封裝: PLASTIC, DIP-20
文件頁數(shù): 4/9頁
文件大?。?/td> 230K
代理商: M74HCT540B1R
M74HCT541
4/9
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 x VCC x fIN + ICC/8 (per circuit)
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
5.0
5
101010
pF
CPD
Power Dissipation
Capacitance (note
1)
5.0
34
pF
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ
VCC
tPZH, tPHZ
GND
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