CD40160BMS Datasheet, PDF (7/13 Pages) Intersil Corporation – CMOS Synchronous Programmable 4-Bit Counters

CD40160BMS, CD40161BMS, CD40162BMS, CD40163BMS
Logic Diagrams (Continued)
LOAD*
9
CD40161BMS
ASYNCHRONOUS
CLEAR
CD40161BMS AND CD40163BMS BINARY COUNTERS
*
7
PE
*
10
TE
*
3
P1
*
16
4
VDD P2
*
5
P3
Q1
Q1
Q1
Q2
Q2
Q2
*
6
P4
CLOCK*
2
CLEAR*
1
LOAD*
9
CD40163BMS
SYNCHRONOUS
CLEAR
CLOCK*
2
CLEAR*
1
*INPUTS PROTECTED BY
CMOS PROTECTION NETWORK
VDD
Q4
Q2
Q3
Q1
LD PI Q1 LD PI Q2 LD PI Q3 LD PI Q4
T
T
T
T
CL
CLR
CL
Q1
CLR
CL
Q2
CLR
CL
Q3
CLR
Q4
14 Q1
13 Q2
12 Q3
11 Q4 15 COUT
VSS
FIGURE 2. LOGIC DIAGRAM FOR CD40161BMS AND CD40163BMS BINARY COUNTERS
CLOCK
X
1 = High Level
0 = Low Level
CLR
1
1
1
1
0
0
1
LOAD
0
1
1
1
X
X
X
TRUTH TABLE
PE
TE
OPERATION
X
X
Preset
0
X
NC
X
0
NC
1
1
Count
X
X
Reset (CD40160BMS, CD40161BMS)
X
X
Reset (CD40162BMS, CD40163BMS)
X
X
NC (CD40162BMS, CD40163BMS)
X = Don’t Care
NC = No Change
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