MC14541B 데이터 시트보기 (PDF) - Motorola => Freescale
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MC14541B Datasheet PDF : 7 Pages
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EXPANDED BLOCK DIAGRAM
A 12
B 13
1 OF 4
MUX
8Q
Rtc 1
Ctc 2 OSC
C
8–STAGE
COUNTER
28
210 213 216
C 8–STAGE
RS 3 RESET
RESET
COUNTER
RESET
AUTO RESET
5
POWER–ON
RESET
VDD = PIN 14
VSS = PIN 7
6
MASTER RESET
FREQUENCY SELECTION TABLE
Number of
Counter Stages Count
A
B
n
2n
0
0
13
8192
0
1
10
1024
1
0
8
256
1
1
16
65536
10
MODE
9
Q/Q
SELECT
TRUTH TABLE
State
Pin
0
1
Auto Reset, 5 Auto Reset Operating Auto Reset Disabled
Master Reset, 6 Timer Operational
Master Reset On
Q / Q,
9 Output Initially Low
After Reset
Output Initially High
After Reset
Mode,
10 Single Cycle Mode Recycle Mode
3
TO CLOCK
CIRCUIT
INTERNAL
RESET
RS
2
1
Ctc
RTC
Figure 3. Oscillator Circuit Using RC Configuration
MC14541B
4
MOTOROLA CMOS LOGIC DATA
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