Datasheet

SN54ALS534A, SN74ALS534A, SN74AS534
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SDAS168B – APRIL 1982 – REVISED JULY 1996
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R1 = 500 Ω
,
R2 = 500 Ω,
T
A
= MIN to MAX
†
UNIT
SN54ALS534A SN74ALS534A
MIN MAX MIN MAX
f
max
30 35 MHz
t
PLH
CLK
An Q
3 17 3 12
ns
t
PHL
CLK
A
ny
Q
4 18 4 16
ns
t
PZH
OE
An Q
3 19 3 17
ns
t
PZL
OE
A
ny
Q
4 20 4 18
ns
t
PHZ
OE
Any Q
1 12 1 10
ns
t
PLZ
OE
A
ny
Q
1 25 2 14
ns
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
‡
Supply voltage, V
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: SN74AS534 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature rang, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN74AS534
UNIT
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
OH
High-level output current –15 mA
I
OL
Low-level output current 48 mA
f
clock
Clock frequency 0 125 MHz
t
Pulse duration
CLK high 4
ns
t
w
P
u
lse
d
u
ration
CLK low 3
ns
t
su
Setup time, data before CLK↑ 2 ns
t
h
Hold time, data after CLK↑ 2 ns
T
A
Operating free-air temperature 0 70 °C