Datasheet

SN74GTLP817
GTLP-TO-LVTTL 1-TO-6 FANOUT DRIVER
SCES285E – OCTOBER 1999 – REVISED AUGUST 2001
3–15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Notes 4 through 7)
MIN NOM MAX UNIT
V
CC
Supply voltage 3.15 3.3 3.45 V
GTL 1.14 1.2 1.26
V
TT
Termination voltage
GTLP 1.35 1.5 1.65
V
GTL 0.74 0.8 0.87
V
REF
Reference voltage
GTLP
0.87 1 1.1
V
BI V
TT
V
I
Input voltage
AI, OE
V
CC
5.5
V
BI V
REF
+0.05
V
IH
High-level input voltage
ERC
V
CC
–0.6 V
CC
5.5
V
AI, OE 2
BI V
REF
–0.05
V
IL
Low-level input voltage
ERC
GND 0.6
V
AI, OE 0.8
I
IK
Input clamp current –18 mA
I
OH
High-level output current AO port –12 mA
AO port 12
I
OL
Low-level output current
BO port
50
mA
∆t/∆v Input transition rise or fall rate Outputs enabled 10 ns/V
∆t/∆V
CC
Power-up ramp rate 20 µs/V
T
A
Operating free-air temperature –40 85 °C
NOTES: 4. All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
5. Normal connection sequence is GND first and V
CC
= 3.3 V, I/O, control inputs, V
TT
, V
REF
(any order) last.
6. V
TT
and R
TT
can be adjusted to accommodate backplane impedances if the dc recommended I
OL
ratings are not exceeded.
7. V
REF
can be adjusted to optimize noise margins, but normally is two-thirds V
TT
.