Datasheet

SN74F377A
OCTAL D-TYPE FLIP-FLOP
WITH CLOCK ENABLE
SDFS018D – D2932, MARCH 1987 – REVISED OCTOBER 1993
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN NOM MAX UNIT
V
CC
Supply voltage 4.5 5 5.5 V
V
IH
High-level input voltage 2 V
V
IL
Low-level input voltage 0.8 V
I
IK
Input clamp current –18 mA
I
OH
High-level output current –1 mA
I
OL
Low-level output current 20 mA
T
A
Operating free-air temperature 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
OH
V
CC
= 4.5 V, I
OH
= – 1 mA 2.5 3.4
V
V
OH
V
CC
= 4.75 V, I
OH
= – 1 mA 2.7
V
V
OL
V
CC
= 4.5 V, I
OL
= 20 mA 0.3 0.5 V
I
I
V
CC
= 0, V
I
= 7 V 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.5 V – 0.6 mA
I
OS
‡
V
CC
= 5.5 V, V
O
= 0 –60 – 150 mA
I
CCH
V
CC
= 5.5 V, See Note 2 55 72 mA
I
CCL
V
CC
= 5.5 V, See Note 3 70 90 mA
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
‡
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
NOTES: 2. I
CCH
is measured after applying a momentary ground, then 4.5 V, to the clock input with all data inputs at 4.5 V and the enable input
at GND.
3. I
CCL
is measured after applying a momentary ground, then 4.5 V, to the clock input with all data and enable inputs at GND.
timing requirements
V
CC
= 5 V,
T
A
= 25°C
V
CC
= 4.5 V to 5.5 V,
T
A
= MIN to MAX
§
UNIT
MIN MAX MIN MAX
f
clock
Clock frequency 0 110 0 110 MHz
t
w
Pulse duration 4 5 ns
↑
Data high or low 2 2
t
su
Setup time before CLK
↑
CE high 2.5 2.5
ns
CE low 4 4.5
t
h
Hold time after CLK↑
Data high or low 1 1
ns
t
h
H
o
ld
ti
me a
ft
er
CLK↑
CE high or low 0 0
ns
§
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.