The MK3230 can operate with VDD = 3.0V to 5.5V, and VDD32 = 2.0V to 5.5V in any combination.
Both VDD pins (pin #5 and pin #13) must be connected to the same voltage.
The amplitude of the 32.768 kHz output clock will be equal to VDD32, and the amplitude of the MHz
clocks will be equal to VDD.
If using a clock input, the input voltage applied to X1 may not exceed VDD32, and the amplitude of any
other input may not exceed VDD. Consult MicroClock if your application is an exception to this.
Package Outline and Package Dimensions
16 pin SOIC narrow
Symbol
A
b
c
D
E
H
e
h
Q
Inches
Min
Max
0.055 0.070
0.013 0.019
0.007 0.010
0.385 0.400
0.150 0.160
0.225 0.245
.050 BSC
0.016
0.004
0.01
Millimeters
Min
Max
1.397
1.778
0.330
0.483
0.191
0.254
9.779 10.160
3.810
4.064
5.715
6.223
1.27 BSC
0.406
0.102
0.254
E
H
D
Q
e
Ordering Information
Part/Order Number
MK3230-01S
MK3230-02S
MK3230-01STR
MK3230-02STR
h x 45°
A
c
b
Marking
MK3230-01S
MK3230-02S
MK3230-01S
MK3230-02S
Keyboard frequency
12 MHz
16 MHz
12 MHz
16 MHz
Package
16 pin SOIC
16 pin SOIC
Add Tape & Reel
Add Tape & Reel
Temperature
0-70°C
0-70°C
0-70°C
0-70°C
While the information presented herein has been checked for both accuracy and reliability, MicroClock Incorporated assumes no responsibility for either its use or for the
infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in
normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements
are not recommended without additional processing by MicroClock. MicroClock reserves the right to change any circuitry or specifications without notice. MicroClock does not
authorize or warrant any MicroClock product for use in life support devices or critical medical instruments.
请问下面的警告是什么原因呢， clk 是输入全局时钟。
Warning: Found pins functioning as undefined clocks and/or memory enables
Info: Assuming node "clk" is an undefined clock
I ......
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