 
HEF4017B
5-stage Johnson decade counter
The HEF4017B is a 5-stage Johnson decade counter with ten spike-free decoded active HIGH outputs (Q0 to Q9), an active LOW carry output from the most significant flip-flop (Q5-9), 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-HIGH transition at CP0 while CP1 is LOW or a HIGH-to-LOW transition at CP1 while CP0 is HIGH (see Table 3).
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, CP1).
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 VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.
Features and benefits
- Automatic counter correction 
- Tolerant of slow clock rise and fall times 
- Fully static operation 
- Wide supply voltage range from 3.0 V to 15.0 V 
- CMOS low power dissipation 
- High noise immunity 
- 5 V, 10 V, and 15 V parametric ratings 
- Standardized symmetrical output characteristics 
- Complies with JEDEC standard JESD 13-B 
- 
ESD protection:- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V 
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V 
 
- Specified from -40 °C to +125 °C 
Parametrics
| Type number | VCC (V) | Output drive capability (mA) | Logic switching levels | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| HEF4017BT | 3.0 - 15 | ± 2.4 | CMOS | 40 | 30 | medium | -40~85 | 91 | 9.3 | 50.8 | SO16 | 
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing | 
|---|---|---|---|---|---|---|---|
| HEF4017BT | HEF4017BT,653 (933372700653) | Active | HEF4017BT |   SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE WAVE_BG-BD-1 | Not available | 
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | 
|---|---|---|---|---|
| HEF4017BT | HEF4017BT,653 | HEF4017BT |  |   | 
Documentation (11)
| File name | Title | Type | Date | 
|---|---|---|---|
| HEF4017B | 5-stage Johnson decade counter | Data sheet | 2024-08-08 | 
| AN11051 | Pin FMEA HEF4000 family | Application note | 2019-01-09 | 
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 | 
| 001aah243 | Block diagram: 74HC4017BQ, 74HC4017D, 74HC4017DB, 74HC4017N, 74HC4017PW, 74HCT4017BQ, 74HCT4017D, 74HCT4017N, HEF4017BP, HEF4017BT | Block diagram | 2009-11-04 | 
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 | 
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 | 
| SO16_SOT109-1_mk | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body | Marcom graphics | 2017-01-28 | 
| SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 | 
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 | 
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 | 
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 | 
Support
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Models
| File name | Title | Type | Date | 
|---|---|---|---|
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 | 
Ordering, pricing & availability
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