(PDF) HD74HCT242 Datasheet - Quad. Bus Transceivers (with 3-state outputs)

Número de pieza	HD74HCT242
Descripción	Quad. Bus Transceivers (with 3-state outputs)
Fabricantes	Hitachi Semiconductor
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No Preview Available ! HD74HCT242/HD74HCT243 Quad. Bus Transceivers (with 3-state outputs) Description The HD74HCT242 is an inverting buffer and the HD74HCT243 is a noninverting buffer. Each device has one active high enable (GBA), and one active low enable (GAB). GBA enables the A outputs and GAB enables the B outputs. The device does not have schmitt trigger inputs. Features • LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility • High Speed Operation: tpd (A to Y) = 9.5 ns typ (CL = 50 pF) • High Output Current: Fanout of 15 LSTTL Loads • Wide Operating Voltage: VCC = 4.5 to 5.5 V • Low Input Current: 1 µA max • Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Control Inputs GAB H GBA H LH HL LL I : Input O : Output O : Inverting Output Z : High Impedance HD74HCT242 Data Port Status AB OI ZZ ZZ IO HD74HCT243 Data Port Status AB OI ZZ ZZ IO 1 page 19.20 20.32 Max 14 8 1 1.30 7 2.39 Max Unit: mm 7.62 2.54 ± 0.25 0.48 ± 0.10 0.25 + – 0.10 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-14 Conforms Conforms 0.97 g 5 Page

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PDF HD74HCT242 Data sheet ( Hoja de datos )