HD74LV245A Datasheet, PDF (7/15 Pages) Hitachi Semiconductor – Octal Bus Transceivers with 3-state Outputs

HD74LV245A
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 Max Min
t_PLH
— 8.3 13.0 1.0
t_PHL
— 11.2 15.9 1.0
t_ZH
— 11.8 19.9 1.0
t_ZL
— 14.1 22.7 1.0
t_HZ
— 11.8 18.1 1.0
t_LZ
— 17.6 23.1 1.0
Max
15.0
18.0
22.0
Unit Test Conditions
ns C_L = 15 pF
C_L = 50 pF
ns C_L = 15 pF
26.0
20.0
C_L = 50 pF
ns C_L = 15 pF
25.0
C_L = 50 pF
FROM
(Input)
A or B
TO
(Output)
B or A
OE
A or B
OE
A or B
• 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 Max Min
t_PLH
— 5.9 8.4 1.0
t_PHL
— 7.9 11.9 1.0
t_ZH
— 8.2 13.2 1.0
t_ZL
— 9.9 16.7 1.0
t_HZ
— 9.6 16.5 1.0
t_LZ
— 13.9 19.8 1.0
Max
10.0
13.5
15.5
Unit Test Conditions
ns C_L = 15 pF
C_L = 50 pF
ns C_L = 15 pF
19.0
19.5
C_L = 50 pF
ns C_L = 15 pF
22.0
C_L = 50 pF
FROM
(Input)
A or B
TO
(Output)
B or A
OE
A or B
OE
A or B
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