Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2:
Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
CD
V
OH
V
OL
V
ID
I
IH
I
BVI
I
BVIT
I
IL
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
Output LOW Voltage
Input Leakage Test
Input HIGH Current
Input HIGH Current Breakdown Test
Input HIGH Current Breakdown Test (I/O)
Input LOW Current
4.75
1
1
7
100
−1
−1
I
IH
+
I
OZH
Output Leakage Current
I
IL
+
I
OZL
I
OS
I
CEX
I
ZZ
I
CCH
I
CCL
I
CCZ
I
CCT
I
CCD
Output Leakage Current
−100
10
−10
−275
50
100
250
30
50
2.5
No Load
0.18
2.5
2.0
0.55
V
V
Min
0.0
Min
2.0
0.8
−1.2
Typ
Max
Units
V
V
V
Min
V
CC
Conditions
Recognized HIGH Signal
Recognized LOW Signal
I
IN
= −18
mA (Non I/O Pins)
I
OH
= −3
mA (A
n
, B
n
)
I
OH
= −32
mA (A
n
, B
n
)
I
OL
=
64 mA (A
n
, B
n
)
I
ID
=
1.9
µA
(Non-I/O Pins)
All Other Pins Grounded
µA
µA
µA
µA
µA
µA
mA
µA
µA
µA
mA
µA
mA
mA/MHz
Max
Max
Max
Max
V
IN
=
2.7V (Non-I/O Pins) (Note 3)
V
IN
=
V
CC
(Non-I/O Pins)
V
IN
=
7.0V (Non-I/O Pins)
V
IN
=
5.5V (A
n
, B
n
)
V
IN
=
0.5V (Non-I/O Pins) (Note 3)
V
IN
=
0.0V (Non-I/O Pins)
OEA or OEB
=
2.0V
0V–5.5V V
OUT
=
0.5V (A
n
, B
n
);
OEA or OEB
=
2.0V
Output Short-Circuit Current
Output HIGH Leakage Current
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
Additional I
CC
/Input
Dynamic I
CC
(Note 4)
Max
Max
0.0V
Max
Max
Max
Max
Max
V
OUT
=
0V (A
n
, B
n
)
V
OUT
=
V
CC
(A
n
, B
n
)
V
OUT
=
5.5V (A
n
, B
n
);
All Others GND
All Outputs HIGH
All Outputs LOW
Outputs 3-STATE;
All Others GND
V
I
=
V
CC
−
2.1V; All Others
at V
CC
or GND
Outputs Open
OEA or OEB
=
GND,
Non-I/O
=
GND or V
CC
One Bit toggling, 50% duty cycle
(Note 4)
Note 3:
Guaranteed, but not tested.
Note 4:
For 8-bit toggling, I
CCD
<
1.4 mA/MHz.
0V–5.5V V
OUT
=
2.7V (A
n
, B
n
);
3
www.fairchildsemi.com
74ABT2952
DC Electrical Characteristics
(SOIC Package)
Conditions
Symbol
Parameter
Min
Typ
Max
Units
V
CC
5.0
5.0
5.0
5.0
5.0
C
L
=
50 pF,
R
L
=
500Ω
V
OLP
V
OLV
V
OHV
V
IHD
V
ILD
Quiet Output Maximum Dynamic V
OL
Quiet Output Minimum Dynamic V
OL
Minimum HIGH Level Dynamic Output Voltage
Minimum HIGH Level Dynamic Input Voltage
Maximum LOW Level Dynamic Input Voltage
−1.2
2.5
2.0
0.6
−1.0
3.0
1.7
1.2
0.8
0.8
V
V
V
V
V
T
A
=
25°C (Note 5)
T
A
=
25°C (Note 5)
T
A
=
25°C (Note 6)
T
A
=
25°C (Note 7)
T
A
=
25°C (Note 7)
Note 5:
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 6:
Max number of outputs defined as (n). n
−
1 data inputs are driven 0V to 3V. One output HIGH. Guaranteed, but not tested.
Note 7:
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.
AC Electrical Characteristics
(SOIC and SSOP Package)
T
A
= +25°C
Symbol
Parameter
Min
f
MAX
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Maximum Clock Frequency
Propagation Delay
CPA or CPB to
A
n
or B
n
Output Enable Time
OEA or OEB to
A
n
or B
n
Output Disable Time
OEA or OEB to
A
n
or B
n
1.5
1.5
3.6
3.2
6.0
6.0
1.5
1.5
6.0
6.0
ns
1.5
1.5
3.2
3.5
5.5
5.5
1.5
1.5
5.5
5.5
ns
200
1.5
1.5
3.4
3.6
5.3
5.3
V
CC
= +5.0V
C
L
=
50 pF
Typ
Max
T
A
= −40°C
to
+85°C
V
CC
=
4.5V to 5.5V
C
L
=
50 pF
Min
200
1.5
1.5
5.3
5.3
Max
MHz
ns
Units
AC Operating Requirements
T
A
= +25°C
Symbol
Parameter
V
CC
= +5.0V
C
L
=
50 pF
Min
t
S
(H)
t
s
(L)
t
H
(H)
t
H
(L)
t
S
(H)
t
S
(L)
t
H
(H)
t
H
(L)
t
W
(H)
t
W
(L)
Setup Time, HIGH
or LOW A
n
or B
n
to CPA or CPB
Hold Time, HIGH
or LOW A
n
or B
n
to CPA or CPB
Setup Time, HIGH
or LOW CEA or CEB
to CPA or CPB
Hold Time, HIGH
or LOW CEA or CEB
to CPA or CPB
Pulse Width,
HIGH or LOW
CPA or CPB
3.0
3.0
3.0
3.0
ns
1.5
1.5
1.5
1.5
ns
2.5
2.5
2.5
2.5
ns
1.5
1.5
1.5
1.5
ns
2.5
2.5
Max
Min
2.5
2.5
T
A
= −40°C
to
+85°C
V
CC
=
4.5V to 5.5V
C
L
=
50 pF
Max
ns
Units
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4
74ABT2952
Extended AC Electrical Characteristics
(SOIC Package)
T
A
= −40°C
to
+85°C
V
CC
=
4.5V to 5.5V
Symbol
Parameter
C
L
=
50 pF
8 Outputs Switching
(Note 8)
Min
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PZL
Propagation Delay
CPA or CPB to A
n
or B
n
Output Enable Time
OEA or OEB to A
n
or B
n
Output Disable Time
OEA or OEB to A
n
or B
n
1.5
1.5
1.5
1.5
1.5
1.5
Max
6.0
6.0
6.0
6.0
6.0
6.0
Min
2.0
2.0
2.0
2.0
(Note 11)
Max
8.0
8.0
8.0
8.0
2.5
2.5
2.5
2.5
T
A
= −40°C
to
+85°C
V
CC
=
4.5V to 5.5V
C
L
=
250 pF
(Note 9)
T
A
= −40°C
to
+85°C
V
CC
=
4.5V to 5.5V
C
L
=
250 pF
8 Outputs Switching
(Note 10)
Min
Max
10.5
10.5
11.5
11.5
(Note 11)
ns
ns
Units
ns
Note 8:
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 9:
This specification is guaranteed but not tested. The limits represent propagation delay with 250 pF load capacitors in place of the 50 pF load
capacitors in the standard AC load. This specification pertains to single output switching only.
Note 10:
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 11:
The 3-STATE delays are dominated by the RC network (500Ω, 250 pF) on the output and has been excluded from the datasheet.
Skew
(SOIC Package)
T
A
= −40°C
to
+85°C
V
CC
=
4.5V–5.5V
Symbol
Parameter
C
L
=
50 pF
8 Outputs Switching
(Note 12)
Max
t
OSHL
(Note 14)
t
OSLH
(Note 14)
t
PS
(Note 15)
t
OST
(Note 14)
t
PV
(Note 16)
Pin to Pin Skew
HL Transitions
Pin to Pin Skew
LH Transitions
Duty Cycle
LH–HL Skew
Pin to Pin Skew
LH/HL Transitions
Device to Device Skew
LH/HL Transitions
1.0
1.0
2.0
2.1
2.5
T
A
= −40°C
to
+85°C
V
CC
=
4.5V–5.5V
C
L
=
250 pF
8 Outputs Switching
(Note 13)
Max
1.5
2.0
4.5
4.5
5.0
ns
ns
ns
ns
ns
Units
Note 12:
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 13:
This specification is guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load
capacitors in the standard AC load.
Note 14:
Skew is defined as the absolute value of the difference between the actual propagation delays for any two separate outputs of the same device.
The specification applies to any outputs switching HIGH-to-LOW (t
OSHL
), LOW to HIGH (t
OSLH
), or any combination switching LOW-to-HIGH and/or HIGH-to-
LOW (t
OST
). This specification is guaranteed but not tested.
Note 15:
This describes the difference between the delay of the LOW-to-HIGH and the HIGH-to-LOW transition on the same pin. It is measured across all
the outputs (drivers) on the same chip, the worst (largest delta) number is the guaranteed specification. This specification is guaranteed but not tested.
Note 16:
Propagation delay variation for a given set of conditions (i.e., temperature and V
CC
) from device to device. This specification is guaranteed but not
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