PinoutSpecificationsSupply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 VVoltage applied to a disabled 3-state outpu...
SN54ALS240A: PinoutSpecificationsSupply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . ....
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Features: PinoutSpecificationsDescriptionThe SN54/74LS147 and SN54/74LS148 are Priority Encoders. ...
PinoutDescriptionThe LS155 and LS156 are Dual 1-of-4 Decoder/Demultiplexers with common Address in...

These octal buffers/drivers of SN54ALS240A and SN54AS240A are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. When these devices are used with the 4ALS241, 4AS241A, 4ALS244, and 4AS244A, the circuit designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE) inputs, and complementary OE and OE inputs. SN54ALS240A and SN54AS240A feature high fan-out and improved fan-in.
The -1 version of SN74ALS240A is identical to the standard version, except that the recommended maximum IOL for the -1 version is 48 mA. There is no -1 version of the SN54ALS240A.
The SN54ALS240A and SN54AS240A are characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS240A and SN74AS240A are characterized for operation from 0°C to 70°C.