TC74HCT245AP_07 Datasheet, PDF (4/7 Pages) Toshiba Semiconductor – Octal Bus Transceiver (3-state)

TC74HCT245AP/AF
AC Characteristics (input: t_r = t_f = 6 ns)
Characteristics
Output transition time
Symbol
t_TLH
t_THL
Propagation delay
t_pLH
time
t_pHL
Test Condition
C_L (pF) V_CC (V)
4.5
⎯
50
5.5
4.5
50
5.5
⎯
4.5
150
5.5
Ta = 25°C
Ta = −40 to 85°C
Unit
Min Typ. Max Min Max
⎯
7
12
⎯
15
ns
⎯
6
11
⎯
14
⎯
13
22
⎯
28
⎯
11
20
⎯
25
ns
⎯
18
30
⎯
38
⎯
16
27
⎯
34
3-state output enable
time
t_pZL
t_pZH
R_L = 1 kΩ
4.5
⎯
19
30
⎯
38
50
5.5
⎯
16
27
⎯
34
ns
4.5
⎯
24
38
⎯
48
150
5.5
⎯
22
34
⎯
43
3-state output disable
time
Input capacitance
Output capacitance
Power dissipation
capacitance
t_pLZ
t_pHZ
R_L = 1 kΩ
C_IN
DIR, G
C_I/O
An, Bn
C_PD
(Note)
4.5
⎯
17
30
⎯
38
50
ns
5.5
⎯
16
27
⎯
34
⎯
5
10
⎯
10
pF
⎯
13
⎯
⎯
⎯
pF
⎯
⎯
41
⎯
⎯
⎯
pF
Note:
C_PD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
I_CC (opr) = C_PDï½¥V_CCï½¥f_IN + I_CC/8 (per bit)
4
2007-10-01