MM74C925 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
MM74C925 Datasheet PDF : 9 Pages
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AC Electrical Characteristics (Note 3)
TA = 25°C, CL = 50 pF, unless otherwise noted
Symbol
Parameter
Conditions
fMAX
Maximum Clock Frequency
tr, tf
Maximum Clock Rise or Fall Time
tWR
Reset Pulse Width
tWLE
Latch Enable Pulse Width
tSET(CK, LE) Clock to Latch Enable Set-Up Time
tLR
Latch Enable to Reset Wait Time
tSET(R, LE) Reset to Latch Enable Set-Up Time
fMUX
CIN
Multiplexing Output Frequency
Input Capacitance
VCC = 5V,
Tj = 25°C
Square Wave Clock Tj = 100°C
VCC = 5V
VCC = 5V
Tj = 25°C
Tj = 100°C
VCC = 5V
Tj = 25°C
Tj = 100°C
VCC = 5V
Tj = 25°C
Tj = 100°C
VCC = 5V
Tj = 25°C
Tj = 100°C
VCC = 5V
Tj = 25°C
Tj = 100°C
VCC = 5V
Any Input (Note 4)
Note 3: AC Parameters are guaranteed by DC correlated testing.
Note 4: Capacitance is guaranteed by periodic testing.
Typical Performance Characteristics
Min
Typ
Max
2
4
1.5
3
15
250
100
320
125
250
100
320
125
2500
1250
3200
1600
0
−100
0
−100
320
160
400
200
1000
5
Typical Segment Current
vs Output Voltage
Maximum Power Dissipation
vs Ambient Temperature
Units
MHz
MHz
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Hz
pF
Note: VD = Voltage across digit driver
Typical Average Segment
Current vs Segment
Resistor Value
5
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