Datasheet
SLLS574D − JULY 2003 − REVISED JULY 2007
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TTL output switching characteristics over recommended operating conditions (unless otherwise
noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
OH
High-level output voltage I
OH
= −1 mA, V
DD
= MIN 2.1 2.3 V
V
OL
Low-level output voltage I
OL
= 1 mA, V
DD
= MIN GND 0.25 0.5 V
t
r(slew)
Magnitude of RX_CLK, RXD slew rate (rising) 0.8 V to 2 V, C = 5 pF, See Figure 10 0.5 V/ns
t
f(slew)
Magnitude of RX_CLK, RXD slew rate (falling) 0.8 V to 2 V, C = 5 pF, See Figure 10 0.5 V/ns
t
su
RXD setup to ↑ RX_CLK
50% voltage swing, GTX_CLK = 50 MHz,
See Figure 7
8 ns
t
su
RXD setup to ↑ RX_CLK
50% voltage swing, GTX_CLK = 125 MHz,
See Figure 7
3 ns
t
h
RXD hold to ↑ RX_CLK
50% voltage swing, GTX_CLK = 50 MHz,
See Figure 7
8 ns
t
h
RXD hold to ↑ RX_CLK
50% voltage swing, GTX_CLK = 125 MHz,
See Figure 7
3 ns
RXD(0−17)
2 V
0.8 V
2 V
0.8 V
RX_CLK
t
su
t
h
t
f(slew)
t
r(slew)
0 V
0 V
t
r(slew)
t
f(slew)
Figure 7. TTL Data Output Valid Levels for AC Measurements