The HEF4017B is a 5-stage Johnson decade c ounter with ten spike-free decoded active
HIGH outputs (Q0 to Q9), an active LOW carry output from the most significant flip-flop
(Q
5-9), active HIGH and active LOW clock inputs (CP0, CP1) and an overriding
asynchronous master reset input (MR).
The counter is advanced by either a LOW-to-H IGH trans ition a t CP0 whil e CP
a HIGH-to-LOW transition at CP
When cascading counters, the Q
6, 7, 8, and 9, can be used to drive the CP0 input of the next counter. A HIGH on MR
resets the counter to zero (Q0 = Q
inputs (CP0, CP
Automatic counter code correction is provided by an internal circuit: following any illegal
code the counter returns to a proper counting mode within 11 clock pulses.
Schmitt trigger action makes the clock inputs highly tolerant of slower rise and fall times.
It operates over a recommended V
(usually ground). Unused inputs must be connected to V
2. Features and benefits
Automatic counter correction
Tolerant of slow clock rise and fall times
Fully static operation
5 V, 10 V, and 15 V pa rametric ratings
Standardized symmetrical output characteristics
Specifie d from 40 C to +125 C
Complies with JEDEC standard JESD 13-B
1).
1 is LOW or
1 while CP0 is HIGH (see Table 3).
5-9 output, which is LOW while the counter is in states 5,
5-9 = HIGH; Q1 to Q9 = LOW) independent of the clock
power supply range of 3 V to 15 V referenced to VSS
DD
, VSS, or another input.
DD
3. Ordering information
Table 1.Ordering information
All types operate from
Type numberPackage
NameDescriptionVersion
HEF4017BPDIP16plastic dual in-line package; 16 leads (300 mil)SOT38-4
HEF4017BTSO16plastic small outline package; 16 leads; body width 3.9 mmSOT109-1
Product data sheetRev. 8 — 18 November 2011 8 of 18
THL
and t
TLH
.
NXP Semiconductors
CP0 input
V
I
V
SS
V
I
V
SS
V
OH
V
OL
V
OH
V
OL
Q1 - Q9
output
CP1 input
V
M
V
M
t
PLH
t
PHL
t
PLH
t
PHL
V
M
t
TLH
t
THL
V
M
001aaj305
Q0, Q5 - Q9
output
HEF4017B
5-stage Johnson decade counter
Table 8.Dynamic power dissipation P
D
PD can be calculated from the formulas shown. VSS = 0 V; tr = tf 20 ns; T
SymbolParameterV
P
D
dynamic power
dissipation
DD
5VPD = 500 fi + (fo CL) V
10 VP
Typical formula for PD (W)where:
DD
= 2200 fi + (fo CL) V
D
15 VPD = 6000 fi + (fo CL) V
11. Waveforms
amb
2
DD
DD
= 25 C.
2
2
fi = input frequency in MHz;
f
= output frequency in MHz;
o
CL = output load capacitance in pF;
V
= supply voltage in V;
DD
(C
fo) = sum of the outputs.
L
Conditions: CP1 = LOW, while CP0 triggers on a LOW-to-HIGH transition. CP1 triggers on a HIGH-to-LOW transition;
The shaded areas indicate where the output state is set by the input count.
Measurement points given in Table 9
.
Fig 7.Waveforms showing the propagation delays for CP0, CP1 to Qn, Q5-9 outputs and the output transition
Product data sheetRev. 8 — 18 November 2011 15 of 18
NXP Semiconductors
HEF4017B
5-stage Johnson decade counter
15. Legal information
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information is available on the Internet at URL http://www.nxp.com.
[1][2]
Product status
[3]
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Product data sheetRev. 8 — 18 November 2011 16 of 18
NXP Semiconductors
HEF4017B
5-stage Johnson decade counter
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