INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT4020 14-stage binary ripple counter Product specification File under Integrated Circuits, IC06 September 1993
Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 • ICC category: MSI The 74HC/HCT4020 are 14-stage binary ripple counters with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve fully buffered parallel outputs (Q0, Q3 to Q13). GENERAL DESCRIPTION The counter is advanced on the HIGH-to-LOW transition of CP.
Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 9, 7, 5, 4, 6, 13, 12, 14, 15, 1, 2, 3 Q0, Q3 to Q13 parallel outputs 8 GND ground (0 V) 10 CP clock input (HIGH-to-LOW, edge-triggered) 11 MR master reset input (active HIGH) 16 VCC positive supply voltage fpage RCTR14 0 3 CT=0 CT 13 9 7 5 4 6 13 12 14 15 1 2 3 MGA829 Fig.1 Pin configuration. September 1993 Fig.2 Logic symbol. 3 Fig.
Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 FUNCTION TABLE INPUTS OUTPUTS CP MR Q0, Q3 to Q13 ↑ ↓ X L L H no change count L Notes 1. H = HIGH voltage level L = LOW voltage level X = don’t care ↑ = LOW-to-HIGH clock transition ↓ = HIGH-to-LOW clock transition Fig.4 Functional diagram. Fig.5 Logic diagram. Fig.6 Timing diagram.
Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 DC CHARACTERISTICS FOR 74HC For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (°C) TEST CONDITIONS 74HC SYMBOL PARAMETER +25 min. −40 to +85 typ. max. min. max. −40 to +125 min. UNIT V WAVEFORMS CC (V) max.
Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI Note to HCT types The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications. To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 AC WAVEFORMS (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.7 Waveforms showing the clock (CP) to output (Qn) propagation delays, the clock pulse width, the output transition times and the maximum clock frequency. (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.
