Datasheet

 
   
      
SCHS275E − MARCH 2002 − REVISED OCTOBER 2003
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
−0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
CC
) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output drain current per output, I
O
(V
O
= 0 to V
CC
) ±35 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output source or sink current per output, I
O
(V
O
= 0 to V
CC
) ±25 mA. . . . . . . . . . . . . . . . . . . . . . .
Continuous current through V
CC
or GND ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 2): E package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M package 73°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package 64°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 108°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, 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.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions for ’HC190 and ’HC191 (see Note 3)
T
A
= 25°C
T
A
= −55°C
TO 125°C
T
A
= −40°C
TO 85°C
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
V
CC
Supply voltage 2 6 2 6 2 6 V
V
CC
= 2 V 1.5 1.5 1.5
V
IH
High-level input voltage
V
CC
= 4.5 V
3.15 3.15 3.15
V
V
IH
High-level input voltage
V
CC
= 6 V 4.2 4.2 4.2
V
V
CC
= 2 V 0.5 0.5 0.5
V
IL
Low-level input voltage
V
CC
= 4.5 V
1.35 1.35 1.35
V
V
IL
Low-level input voltage
V
CC
= 6 V 1.8 1.8 1.8
V
V
I
Input voltage 0 V
CC
0 V
CC
0 V
CC
V
V
O
Output voltage 0 V
CC
0 V
CC
0 V
CC
V
V
CC
= 2 V 1000 1000 1000
t
t
Input transition (rise and fall) time
V
CC
= 4.5 V
500 500 500
ns
t
t
Input transition (rise and fall) time
V
CC
= 6 V 400 400 400
ns
NOTE 3: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
recommended operating conditions for ’HCT191 (see Note 4)
T
A
= 25°C
T
A
= −55°C
TO 125°C
T
A
= −40°C
TO 85°C
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
V
CC
Supply voltage 4.5 5.5 4.5 5.5 4.5 5.5 V
V
IH
High-level input voltage 2 2 2 V
V
IL
Low-level input voltage 0.8 0.8 0.8 V
V
I
Input voltage V
CC
V
CC
V
CC
V
V
O
Output voltage V
CC
V
CC
V
CC
V
t
t
Input transition (rise and fall) time 500 500 500 ns
NOTE 4: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.