Datasheet

SN54ABT162500, SN74ABT162500
18-BIT UNIVERSAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS242E – JUNE 1992 – REVISED FEBRUARY 1999
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ABT162500 SN74ABT162500
UNIT
MIN MAX MIN MAX
UNIT
f
clock
Clock frequency 150 150 MHz
t
Pulse duration
LEAB or LEBA high 2.5 2.5
ns
t
w
P
u
lse
d
u
ration
CLKAB or CLKBA high or low 3 3
ns
A before CLKAB↓ 3.3 3.3
t
Setu
p
time
B before CLKBA↓ 3.3 3.3
ns
t
su
Set
u
p
time
A before LEAB↓ or B before LEBA↓
CLK high 1 1
ns
A
before
LEAB↓
or
B
before
LEBA↓
CLK low 2.5 2.5
t
h
Hold time
A after CLKAB↓ or B after CLKBA↓ 0 0
ns
t
h
Hold
time
A after LEAB↓ or B after LEBA↓ 2 2
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
SN54ABT162500 SN74ABT162500
UNIT
(INPUT)
(OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
f
max
150 200 150 150 MHz
t
PLH
AorB
BorA
1.5 2.6 4 1.5 5.1 1.5 4.8
ns
t
PHL
A
or
B
B
or
A
2 3.4 5.2 2 6.1 2 5.7
ns
t
PLH
LEAB or LEBA
BorA
2 3.3 4.8 2 6.1 2 5.6
ns
t
PHL
LEAB
or
LEBA
B
or
A
2 3.8 5.2 2 6.4 2 5.9
ns
t
PLH
CLKAB or CLKBA
BorA
1.5 3.7 4.9 1.5 6.4 1.5 5.9
ns
t
PHL
CLKAB
or
CLKBA
B
or
A
1.5 3.8 5.2 1.5 6.4 1.5 6
ns
t
PZH
OEAB or OEBA
BorA
1.5 3.4 4.6 1.5 5.6 1.5 5.3
ns
t
PZL
OEAB
or
OEBA
B
or
A
2 3.8 4.7 2 5.6 2 5.4
ns
t
PHZ
OEAB or OEBA
BorA
2 4.5 5.7 2 6.9 2 6.5
ns
t
PLZ
OEAB
or
OEBA
B
or
A
1.5 3.8 5.3 1.5 6.3 1.5 5.8
ns
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.