HD74HC238

HD74HC238 3-to-8-line Decoder/Demultiplexer REJ03D0593–0200 (Previous ADE-205-470) Rev.2.00 Jan 31, 2006 Description The HD74HC238 has 3 binary select inputs (A, B and C). 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 (G1, G2A and G2B) are provided to ease the cascading of decoders. Features High Speed Operation: tpd (Data to Y) = 15 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation HD74HC238P DILP-16 pin PRDP0016AE-B (DP-16FV) P HD74HC238FPEL SOP-16 pin (JEITA) PRSP0016DH-B (FP-16DAV) FP HD74HC238RPEL SOP-16 pin (JEDEC) PRSP0016DG-A RP (FP-16DNV) Note: Please consult the sales office for the above package availability. Taping Abbreviation (Quantity) — EL (2,000 pcs/reel) EL (2,500 pcs/reel) Function Table Enable Inputs Select Outputs G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X XHXXX L L L L L L L L X HXXXX L L L L L L L L L XXXXXL L L L L L L L H LLLLLHL L L L L L L H LLLLHLHL L L L L L H LLLHL L LHL L L L L H L L LHH L L L H L L L L H LLHLL L L L LHL L L H LLHLHL L L L LHL L H L LHHL L L L L L L H L H L LHHH L L L L L L L H H : High level L : Low level X : Irrelevant Rev.2.00 J...