參數(shù)資料
型號: M74HCT640RM13TR
廠商: STMICROELECTRONICS
元件分類: 總線收發(fā)器
英文描述: HCT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20
封裝: SOP-20
文件頁數(shù): 7/11頁
文件大?。?/td> 304K
代理商: M74HCT640RM13TR
M74HCT640
5/11
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
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)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH tTHL Output Transition
Time
4.5
50
7
12
15
18
ns
tPLH tPHL Propagation Delay
Time
4.5
50
13
22
28
33
ns
150
18
30
38
45
tPZL tPZH High Impedance
Output Enable
Time
4.5
50
RL = 1 K
19
30
38
45
ns
150
RL = 1 K
24
38
48
57
tPLZ tPHZ High Impedance
Output Disable
Time
4.5
50
RL = 1 K
17
30
38
45
ns
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
5
101010
pF
CI/OUT
Output
Capacitance
An, Bn
13
pF
CPD
Power Dissipation
Capacitance (note
1)
37
pF
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