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HD74LV245A_15 Datasheet, PDF (7/12 Pages) Renesas Technology Corp – Octal Bus Transceivers with 3-state Outputs | |||
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HD74LV245A
Switching Characteristics
Item
Propagation
delay time
Enable time
Disable time
Symbol
tPLH
tPHL
tZH
tZL
tHZ
tLZ
Ta = 25°C
Min Typ
â 8.3
â 11.2
â 11.8
â 14.1
â 11.8
â 17.6
Max
13.0
15.9
19.9
22.7
18.1
23.1
Ta = â40 to 85°C
Min
Max
1.0
15.0
1.0
18.0
1.0
22.0
1.0
26.0
1.0
20.0
1.0
25.0
Unit
ns
ns
ns
Test
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
Item
Propagation
delay time
Enable time
Disable time
Symbol
tPLH
tPHL
tZH
tZL
tHZ
tLZ
Ta = 25°C
Min Typ
â 5.9
â 7.9
â 8.2
â 9.9
â 9.6
â 13.9
Max
8.4
11.9
13.2
16.7
16.5
19.8
Ta = â40 to 85°C
Min
Max
1.0
10.0
1.0
13.5
1.0
15.5
1.0
19.0
1.0
19.5
1.0
22.0
Unit
ns
ns
ns
Test
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
Item
Propagation
delay time
Enable time
Disable time
Symbol
tPLH
tPHL
tZH
tZL
tHZ
tLZ
Ta = 25°C
Min Typ
â 4.3
â 5.6
â 5.7
â 7.0
â 7.8
â 10.9
Max
5.5
7.5
8.5
10.6
12.8
14.7
Ta = â40 to 85°C
Min
Max
1.0
6.5
1.0
8.5
1.0
10.0
1.0
12.0
1.0
14.2
1.0
16.0
Unit
ns
ns
ns
Test
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
VCC = 2.5 ± 0.2 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
VCC = 3.3 ± 0.3 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
VCC = 5.0 ± 0.5 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
Output-skew Characteristics
Ta = 25°C
Ta = â40 to 85°C
CL = 50 pF
Item
Symbol VCC (V)
Min
Max
Min
Max
Unit
Output skew
tsk (O)
2.3 to 2.7
â
3.0 to 3.6
â
2.0
â
1.5
â
2.0
ns
1.5
4.5 to 5.5
â
1.0
â
1.0
Note: Skew between any outputs of the same package switching in the same direction. This parameter is warranted
but not production tested.
Rev.3.00 Jun. 24, 2004 page 5 of 9
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