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CD54HC245 Datasheet(PDF) 5 Page - Texas Instruments

Part No. CD54HC245
Description  High-Speed CMOS Logic Octal-Bus Transceiver, Three-State, Non-Inverting
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD54HC245 Datasheet(HTML) 5 Page - Texas Instruments

 
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5
Switching Specifications CL = 50pF, Input tr, tf = 6ns
PARAMETER
SYMBOL
TEST
CONDITIONS
VCC (V)
25oC
-40oC TO
85oC
-55oC TO
125oC
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
HC TYPES
Propagation Delay
tPHL, tPLH
CL = 50pF
Data to Output
2
-
-
110
-
140
-
165
ns
4.5
-
-
22
-
28
-
33
ns
CL = 15pF
5
-
9
-
-
-
-
-
ns
CL = 50pF
6
-
-
19
-
24
-
28
ns
Output Disable to Output
tPHL, tPLH
CL = 50pF
2
-
-
150
-
190
-
225
ns
4.5
-
-
30
-
38
-
45
ns
CL = 15pF
5
-
12
-
-
-
-
-
ns
CL = 50pF
6
-
-
26
-
33
-
38
ns
Output Enable to Output
tPHL, tPLH
CL = 50pF
2
-
-
150
-
190
-
225
ns
4.5
-
-
30
-
38
-
45
ns
CL = 15pF
5
-
12
-
-
-
-
-
ns
CL = 50pF
6
-
-
26
-
33
-
38
ns
Output Transition Time
tTHL, tTLH
CL = 50pF
2
-
-
60
-
75
-
90
ns
4.5
-
-
12
-
15
-
18
ns
6
-
-
10
-
13
-
15
ns
Input Capacitance
CIN
CL = 50pF
-
10
-
10
-
10
-
10
pF
Three-State Output
Capacitance
CO
-
-
-
-
20
-
20
-
20
pF
Power Dissipation Capacitance
(Notes 3, 4)
CPD
-5
-
53
-
-
-
-
-
pF
HCT TYPES
Propagation Delay
Data to Output
tPHL, tPLH
CL = 50pF
4.5
-
-
26
-
33
-
39
ns
CL = 15pF
5
-
10
-
-
-
-
-
ns
Output Disable to Output
tPHL, tPLH
CL = 50pF
4.5
-
-
30
-
38
-
45
ns
CL = 15pF
5
-
12
-
-
-
-
-
ns
Output Enable to Output
tPHL, tPLH
CL = 50pF
4.5
-
-
32
-
40
-
48
ns
CL = 15pF
5
-
13
-
-
-
-
-
ns
Output Transition Time
tTHL, tTLH
CL = 50pF
4.5
-
-
12
-
15
-
18
ns
Input Capacitance
CIN
CL = 50pF
-
10
-
10
-
10
-
10
pF
Three-State Output
Capacitance
CO
-
-
-
-
20
-
20
-
20
pF
Power Dissipation Capacitance
(Notes 3, 4)
CPD
-5
-
55
-
-
-
-
-
pF
NOTES:
3. CPD is used to determine the dynamic power consumption, per channel.
4. PD = VCC
2 f
i (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
CD54HC245, CD74HC245, CD54HCT245, CD74HCT245
CD54HC245, CD74HC245, CD54HCT245, CD74HCT245


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