SN54ALS174, SN54ALS175, SN54AS174, SN54AS175B
SN74ALS174, SN74ALS175, SN74AS174, SN74AS175B
HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR
SDAS207E - APRIL 1982 - REVISED MAY 2002
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range, SN54/74AS174,
SN54/74AS175B (unless otherwise noted)
Supply voltage, V
CC
Input voltage, V
I
Package thermal impedance,
θ
JA
(see Note 1): D package
7 V
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.
73
°
C/W
67
°
C/W
64
°
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–
65
°
C to 150
°
C
recommended operating conditions (see Note 2)
SN54AS174
SN54AS175B
SN74AS174
SN74AS175B
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
VIH
VIL
IOH
IOL
TA
NOTE 2: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
High-level output current
–
2
–
2
mA
Low-level output current
20
20
mA
°
C
Operating free-air temperature
–
55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS174
SN54AS175B
TYP
SN74AS174
SN74AS175B
TYP
UNIT
MIN
MAX
MIN
MAX
VIK
VOH
VOL
II
IIH
IIL
IO
§
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
II =
–
18 mA
IOH =
–
2 mA
IOL = 20 mA
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
–
1.2
–
1.2
V
VCC
–
2
VCC
–
2
V
0.35
0.5
0.35
0.5
V
0.1
0.1
mA
μ
A
mA
20
20
–
0.5
–
0.5
–
30
–
112
–
30
–
112
mA
ICC
’
AS174
’
AS175B
VCC= 5 5 V
VCC = 5.5 V,
See Note 4
30
45
34
30
45
34
mA
22.5
22.5
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.
NOTE 4: ICC is measured with D inputs, CLR, and CLK grounded.