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74ACT16244 数据表(PDF) 5 Page - STMicroelectronics

部件名 74ACT16244
功能描述  16-BIT BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
PDF  8 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74ACT16244 数据表(HTML) 5 Page - STMicroelectronics

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TEST CIRCUIT
T EST
SW IT CH
tPLH,tPHL
Open
tPZL,tPLZ
2VCC
tPZH,tPHZ
GND
CL = 50 pF or equivalent (includes jigand probe capacitance)
RL =R1 =500
Ω orequivalent
RT =ZOUT of pulse generator (typically 50
Ω)
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Co nditi ons
Valu e
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
T yp.
Max.
Mi n.
Max.
CIN
Input Capacitance
5.0
3.6
pF
COUT
Output Capacitance
5.0
11
pF
CPD
Power Dissipation
Capacitance (note 1)
5.0
42
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD
• VCC • fIN +ICC/16(per circuit)
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500
Ω, Input tr =tf =3 ns)
Symb ol
Parameter
T est Con ditio n
Valu e
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
T yp.
Max.
Mi n.
Max.
tPLH
tPHL
Propagation Delay Time
5.0
(*)
2.0
3.3
5.0
2.0
6.0
ns
3.0
4.8
6.5
3.0
8.0
tPZL
tPZH
Output Enable Time
5.0
(*)
4.0
6.5
8.7
4.0
9.7
ns
3.0
5.5
7.7
3.0
8.8
tPLZ
tPHZ
Output Disable Time
5.0
(*)
4.0
6.0
8.0
4.0
9.2
ns
3.0
4.6
6.4
3.0
7.3
(*) Voltage range is 5V
± 0.5V
74ACT16244
5/8



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