HD74LV240A Datasheet, PDF (6/14 Pages) Hitachi Semiconductor – Octal Buffers / Drivers with 3-state Outputs

HD74LV240A
Switching Characteristics
• V_CC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C
Item
Propagation
delay time
Enable time
Disable
time
Symbol Min Typ
t_PLH
— 6.3
t_PHL
— 8.2
t_ZH
— 8.5
t_ZL
Max Min
11.6 1.0
14.4 1.0
14.6 1.0
— 10.3 17.8 1.0
t_HZ
— 9.7 14.1 1.0
t_LZ
— 14.2 19.2 1.0
Max
14.0
17.0
17.0
Unit Test Conditions
ns C_L = 15 pF
C_L = 50 pF
ns C_L = 15 pF
21.0
16.0
C_L = 50 pF
ns C_L = 15 pF
21.0
C_L = 50 pF
FROM
(Input)
A
OE
OE
TO
(Output)
Y
Y
Y
• V_CC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C
Item
Propagation
delay time
Enable time
Disable
time
Symbol Min Typ
t_PLH
— 4.6
t_PHL
— 5.9
t_ZH
— 6.2
t_ZL
Max Min
7.5 1.0
11.0 1.0
10.6 1.0
— 7.5 14.1 1.0
t_HZ
— 8.3 12.5 1.0
t_LZ
— 11.8 15.0 1.0
Max
9.0
12.5
12.5
Unit Test Conditions
ns C_L = 15 pF
C_L = 50 pF
ns C_L = 15 pF
16.0
13.5
C_L = 50 pF
ns C_L = 15 pF
17.0
C_L = 50 pF
FROM
(Input)
A
OE
OE
TO
(Output)
Y
Y
Y
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