CD4541BF 데이터 시트보기 (PDF) - Harris Semiconductor
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CD4541BF Datasheet PDF : 8 Pages
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Functional Diagram
Functional Block Diagram
CD4541B
A 12
B 13
RTC
CTC
RS
AR
1
2
3
5
6
MR
10
MODE
9
Q/Q
SELECT
8
Q
VDD = PIN 14
VSS = PIN 7
12 13
†A †B
3
†RS
2
†CTC
1
†RTC
OSC
R
N
P
N
P
8-STAGE
COUNTER
R
216
OR
210 213 28
8-STAGE
COUNTER
R
1 OF 3
MUX
10
†MODE
R
8
Q
9
†Q/Q SELECT
VDD
5 PWR ON
RESET
6
MANUAL RESET†
VDD = 14
VSS = 7 NC = 4, 11
VSS
† All inputs are protected by CMOS Protection Network.
FIGURE 1.
FREQUENCY SELECTION TABLE
NO. OF
A
B
STAGES N
COUNT 2N
0
0
13
8192
0
1
10
1024
1
0
8
256
1
1
16
65536
TRUTH TABLE
STATE
PIN
0
1
5 Auto Reset On
Auto Reset Disable
6 Master Reset Off
Master Reset On
9 Output Initially Low After Output Initially High After
Reset (Q)
Reset (Q)
10 Single Transition Mode Recycle Mode
3
RS
CTC 2
INTERNAL
RESET
1
RTC
TO CLOCK
CKT
FIGURE 2. RC OSCILLATOR CIRCUIT
2
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