DC Electrical Characteristics
Symbol
Parameter
Max
Units
VCC
Conditions
=
=
CL 50 pF, RL 500Ω
=
TA 25˚C (Note 7)
VOLP
VOLV
Quiet Output Maximum Dynamic VOL
Quiet Output Minimum Dynamic VOL
1.2
V
V
5.0
5.0
=
TA 25˚C (Note 7)
-1.8
Note 7: Max number of outputs defined as (n). n − 1 data inputs are driven 0V to 3V. One output at LOW. Guaranteed, but not tested.
AC Electrical Characteristics
54ABT
=
TA −55˚C to +125˚C
Fig.
No.
=
Symbol
Parameter
VCC 4.5V–5.5V
Units
=
CL 50 pF
Min
125
1.4
1.2
1.5
1.5
1.2
1.2
1.3
Max
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
Max Clock Frequency
Propagation Delay
Clock to Bus
MHz
ns
7.8
8.4
6.7
6.7
6.9
7.7
5.6
Figure
5
Propagation Delay
Bus to Bus
ns
ns
Figure
5
Propagation Delay
SBA or SAB to An to Bn
Enable Time
Figure
5
Figure
7
ns
ns
tPZL
tPHZ
OEBA or OEAB to An or Bn
Disable Time
2.0
1.5
7.8
8.2
Figure
7
tPLZ
OEBA or OEAB to An or Bn
1.5
7.3
AC Operating Requirements
54ABT
TA −55˚C to +125˚C
=
Fig.
No.
=
Symbol
Parameter
VCC 4.5V–5.5V
Units
=
CL 50 pF
Min
Max
tS(H)
Setup Time, HIGH
Figure
8
3.5
ns
ns
ns
tS(L)
or LOW Bus to Clock
Hold Time, HIGH
tH(H)
Figure
8
1.5
4.0
tH(L)
or LOW Bus to Clock
Pulse Width,
tW(H)
Figure
6
tW(L)
HIGH or LOW
7
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