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Rev.2.00 Jan. 14, 2005 page 1 of 7 RD74LVC138B 3-to-8-line Decoder / Demultiplexer REJ03D0502–0200 Rev.2.00 Jan. 14, 2005 Description The RD74LVC138B has three binary select inputs in a 16 pin package. If the device is enabled these inputs determine which one of the eight normally high outputs will go low. Two active low and one active high enables are provided to ease the cascading of decoders. Low voltage and high-speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. Features • V CC = 1.65 V to 5.5 V • All inputs V IH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) • Typical V OL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) • Typical V OH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C) • High output current ±4 mA (@VCC = 1.65 V) ±8 mA (@VCC = 2.3 V) ±12 mA (@VCC = 2.7 V) ±24 mA (@VCC = 3.0 V to 5.5 V) • Ordering Information Part Name Package Type Package Code Package Abbreviation Taping Abbreviation (Quantity) RD74LVC138BFPEL SOP–16 pin (JEITA) FP–16DAV FP EL (2,000 pcs/reel) RD74LVC138BTELL TSSOP–16 pin TTP–16DAV T ELL (2,000 pcs/reel) Function Table Inputs Enable Select Outputs G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X X H X X X H H H H H H H H X H X X X X H H H H H H H H L X X X X X H H H H H H H H H L L L L L L H H H H H H H H L L L L H H L H H H H H H H L L L H L H H L H H H H H H L L L H H H H H L H H H H H L L H L L H H H H L H H H H L L H L H H H H H H L H H H L L H H L H H H H H H L H H L L H H H H H H H H H H L H: High level L: Low level X: Immaterial |
