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HEF4020B

nexperia
Part Number HEF4020B
Manufacturer nexperia
Description 14-stage binary counter
Published Jul 25, 2018
Detailed Description HEF4020B 14-stage binary counter Rev. 11 — 7 December 2021 Product data sheet 1. General description The HEF4020B is a...
Datasheet PDF File HEF4020B PDF File

HEF4020B
HEF4020B

Overview
HEF4020B 14-stage binary counter Rev.
11 — 7 December 2021 Product data sheet 1.
General description The HEF4020B is a 14-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and 12 buffered parallel outputs (Q0, and Q3 to Q13).
The counter advances on the HIGH-to-LOW transition of CP.
A HIGH on MR clears all counter stages and forces all outputs LOW, independent of the state of CP.
Each counter stage is a static toggle flip-flop.
Inputs include clamp diodes.
This enables the use of current limiting resistors to interface inputs to voltages in excess of VDD.
2.
Features and benefits • Wide supply voltage range from 3.
0 V to 15.
0 V • CMOS low power dissipation • High noise immunity • High speed operation • Fully static operation • 5 V, 10 V, and 15 V parametric ratings • Standardized symmetrical output characteristics • Complies with JEDEC standard JESD 13-B • ESD protection: • HBM JESD22-A114F exceeds 2000 V • MM JESD22-A115-B exceeds 200 V • Specified from -40 °C to +85 °C 3.
Ordering information Table 1.
Ordering information Type number Package Temperature range HEF4020BT -40 °C to +85 °C Name SO16 Description plastic small outline package; 16 leads; body width 3.
9 mm Version SOT109-1 Nexperia 4.
Functional diagram HEF4020B 14-stage binary counter 10 CP T 11 MR CD 14-STAGE COUNTER 9 7 5 4 6 13 12 14 15 1 2 3 Fig.
1.
Functional diagram Q0 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 001aad722 Q0 9 Q3 7 Q4 5 10 CP Q5 Q6 4 6 Q7 13 Q8 12 11 MR Q9 Q10 14 15 Q11 1 Q12 2 Q13 3 001aad723 Fig.
2.
Logic symbol CTR14 10 + 11 CT 09 7 5 4 6 CT 13 12 14 15 1 2 13 3 001aad724 Fig.
3.
IEC Logic symbol Q FF Q FF Q FF Q FF Q FF Q FF Q FF CP T0 T1 T2 T3 T4 T5 T6 Q RD Q RD Q RD Q RD Q RD Q RD Q RD MR Q0 Q3 Q4 Q5 Q6 Q FF T7 Q RD Q FF T8 Q RD Q FF T9 Q RD Q FF T 10 Q RD Q FF T 11 Q RD Q FF T 12 Q RD Q FF T 13 Q RD Q7 Q8 Q9 Q10 Q11 Q12 Q13 001aad...


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