參數(shù)資料
型號(hào): M74HCT574TTR
廠商: STMICROELECTRONICS
元件分類: 總線收發(fā)器
英文描述: HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: TSSOP-20
文件頁(yè)數(shù): 7/11頁(yè)
文件大?。?/td> 233K
代理商: M74HCT574TTR
M74HCT574
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
Flip-Flop)
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
20
30
38
45
ns
150
24
36
45
54
tPZL tPZH High Impedance
Output Enable
Time
4.5
50
RL = 1 K
19
30
38
45
ns
150
23
36
45
54
tPLZ tPHZ High Impedance
Output Disable
Time
4.5
50
RL = 1 K
19
30
38
45
ns
fMAX
Maximum Clock
Frequency
4.5
50
31
50
25
21
ns
tW(H)
Minimum Pulse
Width (CK)
4.5
50
8
15
19
22
ns
ts
Minimum Set-up
Time
4.5
50
7
15
19
22
ns
th
Minimum Hold
Time
4.5
50
0
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
5
101010
pF
COUT
Output
Capacitance
10
pF
CPD
Power Dissipation
Capacitance (note
1)
63
pF
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