The CD54/74AC540, –541, and CD54/74ACT540, –541 octal buffer/line drivers use the RCA ADVANCED CMOS technology. The CD54/74AC/ACT540 are inverting 3-state buffers having two active-LOW output enables. The CD54/74AC/ACT541 are non-inverting 3-state buffers having two active-LOW output enables.
The CD74AC540, –541, and CD74ACT540, –541 are supplied in 20-lead dual-in-line plastic packages (E suffix) and in 20-lead dual-in-line small-outline plastic packages (M suffix). Both package types are operable over the following temperature ranges: Industrial (–40 to +85°C) and Extended Industrial/Military (–55 to +125°C).
The CD54AC540, –541, and CD54ACT540, –541, available in chip form (H suffix), are operable over the –55 to +125°C temperature range. More information: Weight & dimensions | Width | 26.92 mm |  | Depth | 6.6 mm | | Height | 4.57 mm | | Width (with pins) | 26.92 mm | | Depth (with pins) | 10.92 mm | | Height (with pins) | 8.26 mm | | Package depth | 506 mm | | Package width | 13.97 mm | | Package height | 11.23 mm | Features | Type | Logic IC | | Storage temperature (T-T) | -65 - 150 °C | | Number of pins | 20 | | Operating temperature (T-T) | -55 - 125 °C |
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