74LS48 Datasheet, PDF (2/6 Pages) National Semiconductor (TI) – BCD to 7-Segment Decoder

Absolute Maximum Ratings (Note)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM74LS
0 C to a70 C
Storage Temperature Range
b65 C to a150 C
Recommended Operating Conditions
Note The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation
Symbol
V_CC
V_IH
V_IL
I_OH
I_OL
T_A
Parameter
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
DM74LS48
Min
Nom
Max
4 75
5
5 25
2
08
b50
60
0
70
Units
V
V
V
mA
mA
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
(Note 1)
V_I
V_OH
I_OFF
Input Clamp Voltage
High Level Output
Voltage
Output High Current
Segment Outputs
V_CC e Min I_I e b18 mA
V_CC Min I_OH e Max
V_IL e Max
V_CC e Min V_O e 0 85V
24
b1 3
V_OL
Low Level Output
Voltage
V_CC e Min I_OL e Max
V_IH e Min
I_OL e 2 0 mA V_CC e Min
I_I
Input Current Max
V_CC e Max V_I e 7V
Input Voltage
I_IH
High Level Input Current
V_CC e Max V_I e 2 7V
I_IL
Low Level Input Current
V_CC e Max V_I e 0 4V
I_OS
Short Circuit
Output Current
V_CC e Max V_O e 0V
at BI RBO (Note 2)
b0 3
I_CCH
Supply Current
V_CC e Max V_IN e 4 5V
Note 1 All typicals are at V_CC e 5V T_A e 25 C
Note 2 Not more than one output should be shorted at a time and the duration should not exceed one second
Switching Characteristics at V_CC e 5V and T_A e 25 C
Symbol
Parameter
C_L e 15 pF
Min
Max
t_PLH
Propagation Delay Time
100
t_PHL
A_n to a – g
100
t_PLH
Propagation Delay Time
100
t_PHL
RBI to a–f
100
Note LT e HIGH A₀–A₃ e HIGH
Max
b1 5
05
04
01
20
b0 4
b2
38
Units
V
V
mA
V
mA
mA
mA
mA
mA
Units
ns
ns
2