DESCRIPTION
OF B SERIES CMOS DEVICES" DESCRIPTION
The HCF4024B is a ripple carry binary counter. All counter stages are master-slave flip-flops. Schmitt trigger action on the input pulse line permits unlimited clock rise and fall times. All inputs and outputs are buffered PIN CONNECTION September 2001 1/10 HCF4024B IINPUT EQUIVALENT CIRCUIT FUNCTIONAL DIAGRAM PIN DESCRIPTION
PIN No 12, 11, 9, 6, 5, 4, 3 8, 10, 13 2 1 7 14 SYMBOL NAME AND FUNCTION Q1 to Q7 NC RESET Φ VSS VDD 7 Buffered Outputs Not Connected Reset Input Input Pulses Negative Supply Voltage Positive Supply Voltage TRUTH TABLE Φ X X : Don’t Care RESET H L L OUTPUT STATE ALL OUTPUTS = "L" NO CHANGE ADVANCE TO NEXT STATE 2/10 LOGIC DIAGRAM HCF4024B ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit VDD Supply Voltage -0.5 to +22 V VI DC Input Voltage -0.5 to VDD + 0.5 V II DC Input Current ± 10 mA PD Power Dissipation per Package Power Dissipation per Output Transistor 200 mW 100 mW Top Operating Temperature -55 to +125 °C Tstg Storage Temperature -65 to +150 °C ABSOLUTE MAXIMUM RATINGS
are those values beyond which damage to the device may occur.
STMicroelectronics
