74ABT646 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
74ABT646 Datasheet PDF : 9 Pages
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DC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max Units
VCC
Conditions
CL = 50 pF, RL = 500Ω
VOLP
Quiet Output Maximum Dynamic VOL
0.6
0.8
V
5.0 TA = 25°C (Note 6)
VOLV
Quiet Output Minimum Dynamic VOL
−1.2
−0.9
V
5.0 TA = 25°C (Note 6)
VOHV
Minimum HIGH Level Dynamic Output Voltage
2.5
3.0
V
5.0 TA = 25° (Note 7)
VIHD
Minimum HIGH Level Dynamic Input Voltage
2.2
1.8
V
5.0 TA = 25°C (Note 8)
VILD
Maximum LOW Level Dynamic Input Voltage
0.8
0.5
V
5.0 TA = 25°C (Note 8)
Note 6: 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 7: Max number of outputs defined as (n). n − 1 data inputs are driven 0V to 3V. One output HIGH. Guaranteed, but not tested.
Note 8: Max number of data inputs (n) switching. n − 1 inputs switching 0V to 3V. Input-under-test switching: 3V to threshold (VILD), 0V to threshold (VIHD).
Guaranteed, but not tested.
AC Electrical Characteristics
(SOIC and SSOP package)
Symbol
Parameter
fMAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
Maximum Clock Frequency
Propagation Delay
Clock to Bus
Propagation Delay
Bus to Bus
Propagation Delay
SBA or SAB to An to Bn
Enable Time
OE to Anor Bn
Disable Time
OE to Anor Bn
Enable Time
DIR to An or B n
Disable Time
DIR to An or B n
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Typ
Max
200
1.7
3.0
5.6
1.7
3.4
5.6
1.5
2.6
4.8
1.5
3.0
4.8
1.5
3.0
5.9
1.5
3.4
5.9
1.5
3.2
6.3
1.5
3.5
6.3
1.5
3.7
6.0
1.5
3.2
6.0
1.5
3.4
6.3
1.5
3.7
6.3
1.5
3.8
6.0
1.5
3.2
6.0
AC Operating Requirements
TA = −55°C to +125°C
VCC = 4.5V–5.5V
CL = 50 pF
Min
Max
200
2.2
8.8
1.7
8.8
1.5
7.9
1.5
7.9
1.5
8.1
1.5
8.9
1.0
7.3
1.9
8.8
1.5
9.3
1.5
9.3
1.0
7.7
2.2
9.5
1.5
8.7
1.5
9.2
TA = −40°C to +85°C
VCC = 4.5V–5.5V
CL = 50 pF
Min
Max
200
1.7
5.6
1.7
5.6
1.5
4.8
1.5
4.8
1.5
5.9
1.5
5.9
1.5
6.3
1.5
6.3
1.5
6.0
1.5
6.0
1.5
6.3
1.5
6.3
1.5
6.0
1.5
6.0
Units
MHz
ns
ns
ns
ns
ns
ns
ns
Symbol
Parameter
tS(H)
tS(L)
tH(H)
tH(L)
tW(H)
tW(L)
Setup Time, HIGH
or LOW Bus to Clock
Hold Time, HIGH
or LOW Bus to Clock
Pulse Width,
HIGH or LOW
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Max
1.5
TA = −55°C to +125°C
VCC = 4.5V–5.5V
CL = 50 pF
Min
Max
TA = −40°C to +85°C
VCC = 4.5V–5.5V
CL = 50 pF
Min
Max
1.5
3.0
1.5
1.0
1.0
1.0
1.0
3.0
3.0
4.0
3.0
Units
ns
ns
ns
5
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