HCF4028BEY

HCF4028B BCD TO DECIMAL DECODER ■ ■ ■ ■ ■ ■ ■ ■ ■ BCD TO DECIMAL DECODING OR BINARY TO OCTAL DECODING HIGH DECODED OUTPUT DRIVE CAPABILITY "POSITIVE LOGIC" INPUTS AND OUTPUTS: DECODED OUTPUTS GO HIGH ON SELECTION MEDIUM SPEED OPERATION : tPHL, tPLH = 80ns (Typ.) at VDD = 10V QUIESCENT CURRENT SPECIF. UP TO 20V STANDARDIZED SYMMETRICAL OUTPUT CHARACTERISTICS INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES" DESCRIPTION HCF4028B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. HCF4028B is a BCD to DECIMAL or BINARY to OCTAL decoder consisting of buffering on all 4 DIP SOP ORDER CODES PACKAGE TUBE T&R DIP SOP HCF4028BEY HCF4028BM1 HCF4028M013TR inputs, decoding logic gates, and 10 output buffers. A BCD code applied to the four inputs, A to D, results in a high level at the selected one of 10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A through C is decoded in octal code at output 0 to 7 if D = "0". High drive capability is provided at all outputs to enhance dc and dynamic performance in high fan-out applications. PIN CONNECTION September 2002 1/10 HCF4028B IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 10, 13, 12, 11 10, 13, 12 3, 14, 2, 15, 1, 6, 7, 4, 9, 5 3, 14, 2, 15, 1, 6, 7, 4 SYMBOL A, B, C, D NAME AND FUNCTION BCD Data Inputs A, B, C 3-Bit Binary Inputs 0 to 9 Buffered DECIMAL Decoded Outputs 0 to 7 Buffered OCTAL Decoded Outputs 8 VSS Negative Supply Voltage 16 VDD Positive Supply Voltage FUNCTIONAL DIAGRAM TRUTH TABLE INPUTS OUTPUTS D C B A 0 1 2 3 4 5 6 7 8 9 L L L L L L L L H H H H H H H H L L L L H H H H L L L L H H H H L L H H L L H H L L H H L L H H L H L H L H L H L H L H L H L H H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L L L L L L L L L L L H L L L L L L 2/10 HCF4028B LOGIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VDD Parameter Supply Voltage VI DC Input Voltage II DC Input Current PD Value Unit -0.5 to +22 V -0.5 to VDD + 0.5 ± 10 V mA 200 100 mW mW Top Power Dissipation per Package Power Dissipation per Output Transistor 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. Functional operation under these conditions is not implied. All voltage values are referred to VSS pin voltage. RECOMMENDED OPERATING CONDITIONS Symbol VDD Parameter Supply Voltage VI Input Voltage Top Operating Temperature Value Unit 3 to 20 V 0 to VDD V -55 to 125 °C 3/10 HCF4028B DC SPECIFICATIONS Test Conditions Symbol IL VOH VOL VIH VIL IOH IOL II CI Parameter Quiescent Current High Level Output Voltage Low Level Output Voltage VI (V) Low Level Input Voltage Output Drive Current Output Sink Current Input Leakage Current Input Capacitance IO VDD (µA) (V) VO (V) 0/5 0/10 0/15 0/20 0/5 0/10 0/15 5/0 10/0 15/0 High Level Input Voltage 0/5 0/5 0/10 0/15 0/5 0/10 0/15 0/18 Value 0.5/4.5 1/9 1.5/18.5 0.5/4.5 9/1 1.5/18.5 2.5 4.6 9.5 13.5 0.4 0.5 1.5