HD74AC539 datasheet, PDF - EEWORLD Datasheet

HD74AC539: DescriptionDual 1-of-4 Decoder with 3-State Output; File Size58KB，10 Pages; ManufacturerHitachi （Renesas ）; Websitehttp://www.renesas.com/eng/

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HD74AC539 Overview

Dual 1-of-4 Decoder with 3-State Output

HD74AC539

Dual 1-of-4 Decoder with 3-State Output

Description

The HD74AC539 contains two inpedendent decoders. Each accepts two Address (A

, A

) input signals and

decodes them to select one of four mutually exclusive outputs. A polarity control input (P) determines

whether the outputs are active HIGH (P = L) or active LOW (P = H). An active LOW input Enable (E) is

available for data demultiplexing; data is routed to the selected output in non-inverted form in the active

LOW mode or in inverted form in the active HIGH mode. A HIGH signal on the active LOW Output

Enable (OE) input forces the 3-state outputs to the high impedance state.

Feature

•

Outputs Source/Sink 24 mA

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Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

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