Datasheet

CD54ACT74, CD74ACT74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR AND PRESET
SCHS321 – DECEMBER 2002
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS V
CC
T
A
= 25°C
–55°C to
125°C
–40°C to
85°C
UNIT
CC
MIN MAX MIN MAX MIN MAX
I
OH
= –50 µA 4.5 V 4.4 4.4 4.4
V
OH
V
I
=V
IH
or V
IL
I
OH
= –24 mA 4.5 V 3.94 3.7 3.8
V
V
OH
V
I
=
V
IH
or
V
IL
I
OH
= –50 mA
†
5.5 V 3.85
V
I
OH
= –75 mA
†
5.5 V 3.85
I
OL
= 50 µA 4.5 V 0.1 0.1 0.1
V
OL
V
I
=V
IH
or V
IL
I
OL
= 24 mA 4.5 V 0.36 0.5 0.44
V
V
OL
V
I
=
V
IH
or
V
IL
I
OL
= 50 mA
†
5.5 V 1.65
V
I
OL
= 75 mA
†
5.5 V 1.65
I
I
V
I
= V
CC
or GND 5.5 V ±0.1 ±1 ±1 µA
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 4 80 40 µA
I
CC
‡
V
I
= V
CC
– 2.1 V
4.5 V to
5.5 V
2.4 3 2.8 mA
C
i
10 10 10 pF
†
Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage to minimize
power dissipation. Test verifies a minimum 50-Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive capability at 125°C.
‡
Additional quiescent supply current per input pin, TTL inputs high, 1 unit load
ACT INPUT LOAD TABLE
INPUT
UNIT LOAD
Data 0.53
PRE or CLR 0.58
CLK 1
Unit load is ∆I
CC
limit specified in
electrical characteristics table
(e.g., 2.4 mA at 25°C).
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
–55°C to
125°C
–40°C to
85°C
UNIT
MIN MAX MIN MAX
f
clock
Clock frequency 85 97 MHz
t
Pulse duration
PRE or CLR low 5 4.4
ns
t
w
Pulse
duration
CLK 5.7 5
ns
t
Setup time
Data 4 3.5 ns
t
su
S
e
t
up
ti
me
PRE
or CLR inactive ns
t
h
Hold time Data after CLK↑ 0 0 ns
t
rec
Recovery time, before CLK↑ CLR↑ or PRE↑ 2.7 2.4 ns