M54HC4028 Datasheet | STMicroelectronics

SCRIPTION The M54/74HC4028 is a high speed CMOS BCDTO-DECIMAL DECODER fabricated in silicon gate 2 C MOS technology. It has the same high speed performance of LSTTL bined with true CMOS low power consumption. A BCD code applied to the four inputs (A to D) provides a high level at the selected one of the decimal decoded outputs. An illegal BCD code such as eleven to fifteen gives a low level at all outputs. The device also can be used as 3-TO8-LINE DECODER, when D input is assigned as a disable input. The device is useful for code conversion, address decoding, memory selection, demultiplexing, or read out decoding. All inputs are equipped with protection circuits against static discharge and transient excess voltage. October 1992 NC = No Internal Connection 1/10 M54/M74HC4028 TRUTH TABLE INPUTS D L L L L L L L L H H H H C L L L L H H H H L L X H B L L H H L L H H L L H X A L H L H L H L H L H X X Y0 H L L L L L L L L L L L Y1 L H L L L L L L L L L L Y2 L L H L L L L L L L L L Y3 L L L H L L L L L L L L OUTPUTS Y4 L L L L H L L L L L L L Y5 L L L L L H L L L L L L Y6 L L L L L L H L L L L L Y7 L L L L L L L H L L L L Y8 L L L L L L L L H L L L Y9 L L L L L L L L L H L L SELECTED OUTPUTT Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 NOTE NOTE X: DON’T CARE LOGIC DIAGRAM 2/10 M54/ M74HC4028 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 2, 3, 4, 5, 6, 7, 9, 14, 15 10, 11, 13, 12 8 16 SYMBOL Y0 to Y9 NAME AND FUNCTION Decoder Outputs IEC LOGIC SYMBOL A to D GND V CC Data Inputs Ground (0V) Positive Supply Voltage ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 25 ± 50 500 (- ) -65 to +150 300 Unit V V V m A m A m A m A m W o C...