CD4510BMS Datasheet, PDF (7/11 Pages) Intersil Corporation – CMOS Presettable Up/Down Counters

Logic Diagrams (Continued)
9
RESET*
PRESET* ¹
ENABLE
15
CLOCK*
7
CARRY OUT
CD4510BMS, CD4516BMS
P1* Q1
4
6
P2* Q2
12 11
P3* Q3
13 14
P4* Q4
3
2
P
PE Q
C
TQ
Q1
P
PE Q
C
TQ
Q2 Q2
P
PE Q
C
TQ
Q3 Q3
P
PE Q
C
TQ
Q4 Q4
5
CARRY IN*
10
UP/DOWN*
Q1
VDD
U/D
U/D
U/D Q3 U/D Q3
Q2 Q4 Q2 Q4
U/D U/D
Q2 Q2
U/D Q3 Q2
Q2 U/D Q3
VSS
* ^{ALL INPUTS ARE PROTECTED}
BY CMOS PROTECTION
NETWORK
FIGURE 2. CD4516BMS
CL
CI
X
1
0
0
X
X
X
X
X = DON’T CARE
TRUTH TABLE
U/D
PE
R
X
0
0
1
0
0
0
0
0
X
1
0
X
X
1
ACTION
NO COUNT
COUNT UP
COUNT DOWN
PRESET
RESET
7