SN54ALS534A, SN74ALS534A, SN74AS534
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SDAS168B – APRIL 1982 – REVISED JULY 1996
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54ALS534A
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS534A
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–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
SN54ALS534A
SN74ALS534A
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.7
0.8
V
IOH
High-level output current
–1
– 2.6
mA
IOL
Low-level output current
12
24
mA
fclock
Clock frequency
0
30
0
35
MHz
tw
Pulse duration, CLK high or low
16.5
14
ns
tsu
Setup time, data before CLK
↑
10
ns
th
Hold time, data after CLK
↑
0
ns
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS534A
SN74ALS534A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.5
V
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
VOH
VCC =4 5V
IOH = – 1 mA
2.4
3.3
V
VCC = 4.5 V
IOH = – 2.6 mA
2.4
3.2
VOL
VCC =4 5V
IOL = 12 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
20
A
IOZL
VCC = 5.5 V,
VO = 0.4 V
–20
A
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
CLK, OE
VCC =5 5V
VI =0 4V
– 0.1
mA
IIL
D
VCC = 5.5 V,
VI = 0.4 V
– 0.2
mA
IO§
VCC = 5.5 V,
VO = 2.25 V
–20
–112
–30
–112
mA
Outputs high
11
19
11
19
ICC
VCC = 5.5 V
Outputs low
19
28
19
28
mA
Outputs disabled
10
31
20
31
All typical values are at VCC = 5 V, TA = 25°C.
§ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.