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74ABT245
DC Electrical Characteristics
(SOIC package)
Note 3: Max number of outputs defined as (n). n-1 data inputs are driven 0V to 3V. One output at LOW. Guaranteed, but not tested.
Note 4: Max number of data inputs (n) switching. n-1 inputs switching 0V to 3V. Input-under-test switching: 3V to threshold (V
ILD
), 0V to threshold (V
IHD
).
Guaranteed, but not tested.
Note 5: Max number of outputs defined as (n). n − 1 data inputs are driven 0V to 3V. One output HIGH. Guaranteed, but not tested.
AC Electrical Characteristics
(SOIC and SSOP package)
Extended AC Electrical Characteristics
(SOIC package)
Note 6: This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase
(i.e., all LOW-to-HIGH, HIGH-to-LOW, etc.).
Note 7: This specification is guaranteed but not tested. The limits represent propagation delay with 250 pF load capacitors in place of the 50 pF load capac-
itors in the standard AC load. This specification pertains to single output switching only.
Note 8: This specification is guaranteed but not tested. The limits represent propagation delays for all paths described switching in phase
(i.e., all LOW-to-HIGH, HIGH-to-LOW, etc.) with 250 pF load capacitors in place of the 50 pF load capacitors in the standard AC load.
Note 9: The 3-STATE delays are dominated by the RC network (500Ω, 250 pF) on the output and have been excluded from the datasheet.
Symbol Parameter Min Typ Max Units
V
CC
Conditions
C
L
= 50 pF, R
L
= 500Ω
V
OLP
Quiet Output Maximum Dynamic V
OL
0.7 1.0 V 5.0 T
A
= 25°C (Note 3)
V
OLV
Quiet Output Minimum Dynamic V
OL
−1.3 −1.0 V 5.0 T
A
= 25°C (Note 3)
V
OHV
Minimum HIGH Level Dynamic Output Voltage 2.7 3.1 V 5.0 T
A
= 25°C (Note 5)
V
IHD
Minimum HIGH Level Dynamic Input Voltage 2.0 1.7 V 5.0 T
A
= 25°C (Note 4)
V
ILD
Maximum LOW Level Dynamic Input Voltage 0.9 0.6 V 5.0 T
A
= 25°C (Note 4)
T
A
= +25°CT
A
= −55°C to +125°CT
A
= −40°C to +85°C
Symbol Parameter
V
CC
= +5V V
CC
= 4.5V–5.5V V
CC
= 4.5V–5.5V
Units
C
L
= 50 pF C
L
= 50 pF C
L
= 50 pF
Min Typ Max Min Max Min Max
t
PLH
Propagation Delay 1.0 2.1 3.6 1.0 4.8 1.0 3.6
ns
t
PHL
Data to Outputs 1.0 2.4 3.6 1.0 4.8 1.0 3.6
t
PZH
Output Enable 1.5 3.2 6.0 1.0 6.7 1.5 6.0
ns
t
PZL
Time 1.5 3.7 6.0 2.0 7.5 1.5 6.0
t
PHZ
Output Disable 1.0 3.6 6.1 1.7 7.4 1.0 6.1
ns
t
PLZ
Time 1.0 3.3 5.6 1.7 6.5 1.0 5.6
Symbol Parameter
−40°C to +85°C
T
A
= −40°C to +85°C T
A
= −40°C to +85°C
Units
V
CC
= 4.5V–5.5V V
CC
= 4.5V–5.5V V
CC
= 4.5V–5.5V
C
L
= 50 pF C
L
= 250 pF C
L
= 250 pF
8 Outputs Switching 1 Output Switching 8 Outputs Switching
(Note 6) (Note 7) (Note 8)
Min Typ Max Min Max Min Max
f
TOGGLE
Max Toggle Frequency 100 MHz
t
PLH
Propagation Delay 1.5 5.0 1.5 6.0 2.5 8.5
ns
t
PHL
Data to Outputs 1.5 5.0 1.5 6.0 2.5 8.5
t
PZH
Output Enable Time 1.5 6.5 2.5 7.5 2.5 9.5
ns
t
PZL
1.5 6.5 2.5 7.5 2.5 11.0
t
PHZ
Output Disable Time 1.0 6.5
(Note 9) (Note 9) ns
t
PLZ
1.0 5.6
