MFG:ON Package Cooled:04+ D/C:SOP3.9
MFG: ON
Package Cooled: 04+
D/C: SOP3.9
Description: The MC74HCT138A is identical in pinout to the LS138. The HCT138A may be used as a level converter for int...
The MC74HCT138A is identical in pinout to the LS138. The HCT138A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.
The HCT138A decodes a threebit Address to oneofeight activelot outputs. This device features three Chip Select inputs, two activelow and one activehigh to facilitate the demultiplexing, cascading, and chipselecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states.
| Symbol | Parameter | Value | Unit |
| VCC | DC Supply Voltage (Referenced to GND) | 0.5 to + 7.0 | V |
| Vin | DC Input Voltage (Referenced to GND) | -0.5 to VCC + 0.5 | V |
| Vout | DC Output Voltage (Referenced to GND) | -0.5 to VCC + 0.5 | V |
| Iin | DC Input Current, per Pin | ± 20 | mA |
| Iout | DC Output Current, per Pin | ± 25 | mA |
| ICC | DC Supply Current, VCC and GND Pins | ± 50 | mA |
| PD | Power Dissipation in still Air Plastic DIP + SOIC Package+ TSSOP Package+ |
750 500 450 |
mW |
| Tstg | Storage Temperature | -65to +150 | |
| TL | Tead Temperature ,1mm form Case for 10 Seconds Plastic DIP , SOIC or TSSOP Package |
260 |
MC74HCT138A
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