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U74HCT640L-R20-T 数据表(PDF) 4 Page - Unisonic Technologies

部件名 U74HCT640L-R20-T
功能描述  OCTAL BUS TRANSCEIVERS
PDF  6 Pages
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制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

U74HCT640L-R20-T 数据表(HTML) 4 Page - Unisonic Technologies

  U74HCT640L-R20-T Datasheet HTML 1Page - Unisonic Technologies U74HCT640L-R20-T Datasheet HTML 2Page - Unisonic Technologies U74HCT640L-R20-T Datasheet HTML 3Page - Unisonic Technologies U74HCT640L-R20-T Datasheet HTML 4Page - Unisonic Technologies U74HCT640L-R20-T Datasheet HTML 5Page - Unisonic Technologies U74HCT640L-R20-T Datasheet HTML 6Page - Unisonic Technologies  
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U74HCT640
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
4 of 6
www.unisonic.com.tw
QW-R502-684.B
SWITCHING CHARACTERISTICS (TA =25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Propagation delay from A to B or B to A
tPD
VCC=4.5V, CL=50pF, RL=1kΩ
14
21
ns
VCC=5.5V, CL=50pF, RL=1kΩ
12
18
Enable times from OE to A or B
tEN
VCC=4.5V, CL=50pF, RL=1kΩ
27
35
ns
VCC=5.5V, CL=50pF, RL=1kΩ
24
32
Disable times from OE to A or B
tDIS
VCC=4.5V, CL=50pF, RL=1kΩ
20
30
ns
VCC=5.5V, CL=50pF, RL=1kΩ
18
26
Output rise or fall time
tT
VCC=4.5V, CL=50pF, RL=1kΩ
9
12
ns
VCC=5.5V, CL=50pF, RL=1kΩ
8
11
SWITCHING CHARACTERISTICS (TA =25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Propagation delay from A to B or B to A
tPD
VCC=4.5V, CL=150pF, RL=1kΩ
17
27
ns
VCC=5.5V, CL=150pF, RL=1kΩ
15
24
Enable times from OE to A or B
tEN
VCC=4.5V, CL=150pF, RL=1kΩ
31
45
ns
VCC=5.5V, CL=150pF, RL=1kΩ
28
41
Output rise or fall time
tT
VCC=4.5V, CL=150pF, RL=1kΩ
17
42
ns
VCC=5.5V, CL=150pF, RL=1kΩ
14
38
OPERATING CHARACTERISTICS (TA =25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
TYP
UNIT
Power dissipation capacitance
CPD
No load
40
pF



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