Datasheet

SN74GTL16923
18-BIT LVTTL-TO-GTL/GTL+ BUS TRANSCEIVER
SCBS674G – AUGUST 1996 – REVISED AUGUST 2001
2–46
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature for GTL (unless otherwise noted)
MIN MAX UNIT
f
clock
Clock frequency 200 MHz
t
w
Pulse duration, CLK high or low 2.5 ns
t
Setu
p
time
Data before CLK↑ 2.6
ns
t
su
Set
u
p
time
CE before CLK↑ 3.3
ns
t
h
Hold time
Data after CLK↑ 0.1
ns
t
h
Hold
time
CE after CLK↑ 0
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature for GTL (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN TYP
†
MAX UNIT
f
max
200 MHz
t
PLH
CLKAB
B
2.2 5.8
ns
t
PHL
CLKAB
B
2.1 6.3
ns
t
dis
OEAB
B
1.7 5.3
ns
t
en
OEAB
B
2 5
ns
Slew rate Both transitions 0.5 V/ns
t
r
Transition time, B outputs (0.6 V to 1 V) 0.3 2.9 ns
t
f
Transition time, B outputs (1 V to 0.6 V) 0.1 3.9 ns
t
PLH
CLKBA
A
1.8 5
ns
t
PHL
CLKBA
A
1.7 4.8
ns
t
en
OEBA
A
1.3 4.8
ns
t
dis
OEBA
A
2 4.8
ns
†
All typical values are at V
CC
= 3.3 V, T
A
= 25°C.