1. General description

The 74HC4020-Q100; 74HCT4020-Q100 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 VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100

(Grade 1) and is suitable for use in automotive applications.

2. Features and benefits

? Automotive product qualification in accordance with AEC-Q100 (Grade 1)

? Specified from -40 °C to +85 °C and from -40 °C to +125 °C

? Wide supply voltage range from 2.0 V to 6.0 V

? CMOS low power dissipation

? High noise immunity

? Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

? Complies with JEDEC standards:

? JESD8C (2.7 V to 3.6 V)

? JESD7A (2.0 V to 6.0 V)

? Input levels:

? For 74HC4020-Q100: CMOS level

? For 74HCT4020-Q100: TTL level

? ESD protection:

? MIL-STD-883, method 3015 exceeds 2000 V

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)

? Multiple package options

? DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of

solder joints

3. Applications

? Frequency dividing circuits

? Time delay circuits

? Control counters