Datasheet

SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 1997
5
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)
SN74ABT377A
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN MAX
f
clock
Clock frequency 0 150 0 150 MHz
t
w
Pulse duration CLK high or low 3.3 3.3 ns
t
su
Setu
p
time before CLK↑
Data high or low 2 2.5
ns
t
su
Setup
time
before
CLK↑
CLKEN high or low 3 3
ns
t
h
Hold time after CLK↑
Data high or low 1.8
†
1.8
†
ns
t
h
H
o
ld
ti
me a
ft
er
CLK↑
CLKEN high or low 1.2
†
1.2
†
ns
†
This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
SN54ABT377
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
f
max
150 150 MHz
t
PLH
CLK
Q
2.2 4.5 6 2.2 7
ns
t
PHL
CLK
Q
3.1 5.3 6.8 2 7.6
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
SN74ABT377A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
f
max
150 150 MHz
t
PLH
CLK
Q
2.2 4.5 6 2.2 6.5
ns
t
PHL
CLK
Q
2.6
†
5.3 6.8 2.6
†
7.3
ns
†
This data sheet limit may vary among suppliers.