74HC4017; 74HCT4017
Johnson decade counter with 10 decoded outputs
Rev. 4 10 December 2013 Product data sheet
1. General description
The 74HC4017; 74HCT4017 is a 5-stage Johnson decade counter with 10 decoded
outputs (Q0 to Q9), an output from the most significant flip-flop (Q5-9), two clock inputs
(CP0 and CP1) and an overriding asynchronous master reset input (MR). The counter is
advanced by either a LOW-to-HIGH transition at CP0 while CP1 is LOW or a
HIGH-to-LOW transition at CP1 while CP0 is HIGH. When cascading counters, the Q5-9
output, which is LOW while the counter is in states 5, 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 = Q5-9 =
HIGH; Q1 to Q9 = LOW) independent of the clock inputs (CP0 and CP1). Automatic code
correction of the counter is provided by an internal circuit: following any illegal code the
counter returns to a proper counting mode within 11 clock pulses. Inputs include clamp
diodes. This enables the use of current limiting resistors to interface inputs to voltages in
excess of V .
CC
2. Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
Input levels:
For 74HC4017: CMOS level
For 74HCT4017: TTL level
Complies with JEDEC standard no. 7 A
ESD protection:
HBM JESD22-A114E exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 Cto+85 C and from 40 Cto+125 CNXP Semiconductors 74HC4017; 74HCT4017
Johnson decade counter with 10 decoded outputs
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC4017
74HC4017N 40 C to +125 C DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4
74HC4017D 40 C to +125 C SO16 plastic small outline package; 16 leads; SOT109-1
body width 3.9 mm
74HC4017DB 40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; SOT338-1
body width 5.3 mm
74HC4017PW 40 Cto+125 C TSSOP16 plastic thin shrink small outline package; 16 leads; SOT403-1
body width 4.4 mm
74HC4017BQ 40 Cto+125 C DHVQFN16 plastic dual in-line compatible thermal-enhanced SOT763-1
very thin quad flat package; no leads; 16 terminals;
body 2.5 3.5 0.85 mm
74HCT4017
74HCT4017N 40 C to +125 C DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4
74HCT4017D 40 C to +125 C SO16 plastic small outline package; 16 leads; SOT109-1
body width 3.9 mm
74HCT4017BQ 40 Cto+125 C DHVQFN16 plastic dual in-line compatible thermal-enhanced SOT763-1
very thin quad flat package; no leads; 16 terminals;
body 2.5 3.5 0.85 mm
4. Functional diagram
CP1
13
CP0
14
5-STAGE JOHNSON COUNTER
MR
15
Q5-9
DECODING AND OUTPUT CIRCUITRY 12
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
3 2 4 7 10 1 5 6 9 11 001aah242
Fig 1. Functional diagram
74HC_HCT4017 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 4 10 December 2013 2 of 24