5
www.fairchildsemi.com
G
Extended Electrical Characteristics
Over recommended ranges of supply voltage and operating free-air temperature V
REF
=
1.0V (unless otherwise noted).
C
L
=
30 pF for B Port and C
L
=
50 pF for A Port
From
To
(Input)
(Output)
t
OSLH
(Note 8)
A
B
t
OSHL
(Note 8)
A
B
t
PS
(Note 9)
A
B
t
PV(HL)
(Note 10)(Note 11)
A
B
t
OSLH
(Note 8)
B
A
t
OSHL
(Note 8)
B
A
t
OST
(Note 8)
B
A
t
PS
(Note 9)
B
A
t
PV
(Note 10)
B
A
Note 7:
All typical values are at V
CC
=
3.3 V and T
A
=
25
°
C.
Note 8:
t
OSHL
/t
OSLH
and t
OST
–
Output-to-Output skew is defined as the absolute value of the difference between the actual propagation delay for all outputs
within the same packaged device. The specifications are given for specific worst case V
CC
and temperature and apply to any outputs switching in the same
direction dither HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
) or in opposite directions both HL and LH (t
OST
). This parameter is guaranteed by design and
statistical process distribution. Actual skew values between the GTLP outputs could vary on the backplane due to the loading and impedance seen by the
device.
Note 9:
t
PS
–
Pin or Transition skew is defined as the difference between the LOW-to-HIGH transition and the HIGH-to-LOW transition on the same pin. The
parameter is measured across all the outputs of the same chip is specified for a specific worst case V
CC
and temperature. This parameter is guaranteed by
design and statistical process distribution. Actual skew values between the GTLP outputs could vary on the backplane due to the loading and impedance
seen by the device.
Note 10:
t
PV
–
Part-to-Part skew is defined as the absolute value of the difference between the actual propagation delay for all outputs from device-to-device.
The parameter is specified for a specific worst case V
CC
and temperature. This parameter is guaranteed by design and statistical process distribution. Actual
skew values between the GTLP output could vary on the backplane due to the loading and impedance seen by the device.
Note 11:
Due to the open drain structure on GTLP outputs t
OST
and t
PV(LH)
in the A-to-B direction are not specified. Skew on these paths is dependent on the
V
TT
and R
T
values on the backplane.
Symbol
Min
Typ
Max
Units
(Note 7)
0.1
0.1
0.3
0.2
0.6
1.0
ns
ns
1.3
0.7
0.4
ns
0.1
0.1
ns
0.2
0.1
1.1
1.0
ns
ns
2.4
ns