HD74LV245A Datasheet, PDF (5/10 Pages) Hitachi Semiconductor – Octal Bus Transceivers with 3-state Outputs

HD74LV245A
Switching Characteristics
Item
Propagation
delay time
Enable time
Disable time
Symbol
t_PLH
t_PHL
t_ZH
t_ZL
t_HZ
t_LZ
Ta = 25°C
Min Typ
— 8.3
— 11.2
— 11.8
— 14.1
— 11.8
— 17.6
Max
13.0
15.9
19.9
22.7
18.1
23.1
Ta = –40 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
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
Item
Propagation
delay time
Enable time
Disable time
Symbol
t_PLH
t_PHL
t_ZH
t_ZL
t_HZ
t_LZ
Ta = 25°C
Min Typ
— 5.9
— 7.9
— 8.2
— 9.9
— 9.6
— 13.9
Max
8.4
11.9
13.2
16.7
16.5
19.8
Ta = –40 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
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
Item
Propagation
delay time
Enable time
Disable time
Symbol
t_PLH
t_PHL
t_ZH
t_ZL
t_HZ
t_LZ
Ta = 25°C
Min Typ
— 4.3
— 5.6
— 5.7
— 7.0
— 7.8
— 10.9
Max
5.5
7.5
8.5
10.6
12.8
14.7
Ta = –40 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
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
V_CC = 2.5 ± 0.2 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
V_CC = 3.3 ± 0.3 V
FROM TO
(Input) (Output)
A or B B or A
OE
A or B
OE
A or B
V_CC = 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 = –40 to 85°C
C_L = 50 pF
Item
Symbol V_CC (V)
Min
Max
Min
Max
Unit
Output skew
t_{sk (O)}
2.3 to 2.7
—
3.0 to 3.6
—
2.0
—
1.5
—
2.0
ns
1.5
4.5 to 5.5
—
1.0
—
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