MC74AC646_06 Datasheet, PDF (7/11 Pages) ON Semiconductor – Octal Transceiver/Register with 3−State Outputs (Non−inverting)

MC74AC646, MC74ACT646
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74ACT
74ACT
Symbol
Parameter
V_CC*
(V)
T_A = +25°C
C_L = 50 pF
T_A = −40°C
to +85°C
C_L = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
t_PLH
Propagation Delay
Clock to Bus
t_PHL
Propagation Delay
Clock to Bus
5.0 3.5 12.0 14.5 3.0 16.0 ns
3−6
5.0 4.0 12.0 14.5 3.5 16.0 ns
3−6
t_PLH
Propagation Delay
Bus to Bus
5.0 3.0 8.5 11.0 2.5 12.0 ns
3−5
t_PHL
Propagation Delay
Bus to Bus
5.0 2.5 8.5 11.0 2.0 12.0 ns
3−5
Propagation Delay
t_PLH
SBA or SAB to A_n or B_n
(w/A_n or B_n HIGH or LOW)
Propagation Delay
t_PHL
SBA or SAB to A_n or B_n
(w/A_n or B_n HIGH or LOW)
t_PZH
Enable Time
G to A_n or B_n
t_PZL
Enable Time
G to A_n or B_n
t_PHZ
Disable Time
G to A_n or B_n
t_PLZ
Disable Time
G to A_n or B_n
t_PZH
Enable Time
DIR to A_n or B_n
t_PZL
Enable Time
DIR to A_n or B_n
t_PHZ
Disable Time
DIR to A_n or B_n
t_PLZ
Disable Time
DIR to A_n or B_n
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 3.0 9.5 12.0 2.5 13.0 ns
3−6
5.0 3.0 9.5 12.0 2.5 13.0 ns
3−6
5.0 2.0 9.0 11.0 1.5 12.0 ns
3−7
5.0 3.5 9.0 11.0 3.0 12.0 ns
3−8
5.0 5.0 10.5 13.0 4.5 14.5 ns
3−7
5.0 3.5 10.0 12.5 3.0 14.0 ns
3−8
5.0 2.0 6.5 12.5 1.5 13.5 ns
3−7
5.0 3.5 6.5 12.5 3.0 13.5 ns
3−8
5.0 5.0 8.5 12.5 4.5 13.5 ns
3−7
5.0 3.5 8.5 12.5 3.0 13.5 ns
3−8
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