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MM74C925 • MM74C926 • MM74C927 • MM74C928
Absolute Maximum Ratings(Note 1)
Note 1: “Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed. Except for “Operating Tempera-
ture Range” they are not meant to imply that the devices should be oper-
ated at these limits. The Electrical Characteristics table provides conditions
for actual device operation.
DC Electrical Characteristics
Min/Max limits apply at −40°C ≤ t
j
≤ + 85°C, unless otherwise noted
Note 2: θ
jA
measured in free-air with device soldered into printed circuit board.
Voltage at Any Output Pin GND − 0.3V to V
CC
+ 0.3V
Voltage at Any Input Pin GND − 0.3V to +15V
Operating Temperature
Range (T
A
) −40°C to +85°C
Storage Temperature
Range −65°C to +150°C
Power Dissipation (P
D
)Refer to P
D(MAX)
vs T
A
Graph
Operating V
CC
Range 3V to 6V
V
CC
6.5V
Lead Temperature
(Soldering, 10 seconds) 260°C
Symbol Parameter Conditions Min Typ Max Units
CMOS TO CMOS
V
IN(1)
Logical “1” Input Voltage V
CC
= 5V 3.5 V
V
IN(0)
Logical “0” Input Voltage V
CC
= 5V 1.5 V
V
OUT(1)
Logical “1” Output Voltage V
CC
= 5V, I
O
= −10 µA
(Carry-Out and Digit Output 4.5 V
Only)
V
OUT(0)
Logical “0” Output Voltage V
CC
= 5V, I
O
= 10 µA0.5V
I
IN(1)
Logical “1” Input Current V
CC
= 5V, V
IN
= 15V 0.005 1 µA
I
IN(0)
Logical “0” Input Current V
CC
= 5V, V
IN
= 0V −1 −0.005 µA
I
CC
Supply Current V
CC
= 5V, Outputs Open Circuit, 20 1000 µA
V
IN
= 0V or 5V
CMOS/LPTTL INTERFACE
V
IN(1)
Logical “1” Input Voltage V
CC
= 4.75V V
CC
− 2V
V
IN(0)
Logical “0” Input Voltage V
CC
= 4.75V 0.8 V
V
OUT(1)
Logical “1” Output Voltage V
CC
= 4.75V,
(Carry-Out and Digit I
O
= −360 µA2.4 V
Output Only)
V
OUT(0)
Logical “0” Output Voltage V
CC
= 4.75V, I
O
= 360 µA0.4V
OUTPUT DRIVE
V
OUT
Output Voltage (Segment I
OUT
= −65 mA, V
CC
= 5V, T
j
= 25°CV
CC
− 2V
CC
− 1.3 V
Sourcing Output) I
OUT
= −40 mA, V
CC
= 5V T
j
= 100°CV
CC
− 1.6 V
CC
− 1.2 V
T
j
= 150°CV
CC
− 2V
CC
− 1.4 V
R
ON
Output Resistance (Segment I
OUT
= −65 mA, V
CC
= 5V, T
j
= 25°C2032Ω
Sourcing Output) I
OUT
= −40 mA, V
CC
= 5V T
j
= 100°C3040Ω
T
j
= 150°C3550Ω
Output Resistance (Segment 0.6 0.8 %/°C
Output) Temperature Coefficient
I
SOURCE
Output Source Current V
CC
= 4.75V, V
OUT
= 1.75V, T
j
= 150°C −1 −2mA
(Digit Output)
I
SOURCE
Output Source Current V
CC
= 5V, V
OUT
= 0V, T
j
= 25°C −1.75 −3.3 mA
(Carry-Out)
I
SINK
Output Sink Current V
CC
= 5V, V
OUT
= V
CC
, T
j
= 25°C 1.75 3.6 mA
(All Outputs)
θ
jA
Thermal Resistance MM74C925: (Note 2) 75 100 °C/W
MM74C926, MM74C927, MM74C928 70 90 °C/W
