MIC50398 Micrel Semiconductor, MIC50398 Datasheet - Page 6

• Manufacturer Part Number: MIC50398
• Description: Six Decade Counter / Display Decoder
• Manufacturer: Micrel Semiconductor

MIC50398/50399
Dynamic Operating Conditions
Note 7: Measured at 50% duty cycle.
Note 8: If carry or zero outputs are used, the count frequency will be limited by their respective output times.
Note 9: The count pulse width must be greater than the carry access time when using the carry output.
Note 10: The positive edge of the count input is the t = 0 reference.
Note 11: Measured from negative edge of count input.
Note 12: Time to load one digit.
August 1998
Symbol
f
f
t
t
t
t
t
t
t
t
t
t
t
t
CI
SI
CPW
SPW
SS
CIS
UDS
CPW
CS
OA
OH
CA
CH
L
Count Input Frequency
Scan Input Frequency
Count Pulse Width
Store Pulse Width
Store Setup Time
Count Inhibit Setup Time
Up/Down setup Time
Clear Pulse Width
Clear Setup Time
Zero Access Time
Zero Hold Time
Carry Access Time
Carry Hold Time
Load Time
Parameter
8-15
1/6 f
–0.75
–0.5
Min
325
2.0
2.0
0
0
0
0
SI
Max
1.5
3.0
1.5
1.5
0.9
20
Units
MHz
kHz
ns
s
s
s
s
s
s
s
s
s
s
10 MIC50399 only
10 MIC50399 only
Notes
7,8
10
10
10
10
10
10
11
12
9
Micrel
8