Logic Board | Ports | Power |
Processor: | 68LC040, 66 | PMMU: | integrated | FPU: | none | Data Path: | 32, 33 | L1 Cache: | 8K | L2 Cache: | none | 2nd Processor: | none | Slots: | modem |
| USB: | | ADB: | 1 | Video: | mini-15 | Floppy: | none | SCSI: | HDI-30 | Geoports: | | Ethernet: | AAUI-15 | FireWire: | | Mic Type: | Line in | AirPort Ready: | | Other Ports: | Printer Speaker , |
| Max Watts: | 40 | Amps: | 1.015 | BTU per Hr: | 136.8 | Voltage: | 100-240 | Freq Range: | 50-60 Hz | Battery Type: | PB500, NiMH | Soft Power: | yes |
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Memory | Video Memory |
Logic Board: | 4 MB | RAM Slots: | 1, PB5xx | Min - Max RAM: | 4 MB - 36 MB | Min RAM Speed: | 70 | RAM Sizes: | 4, 8, 12, 20, 32 MB | Install in Groups of: | 1 |
| Resolution | Video Memory built-in LCD screen (built in) | Video Memory 512K VRAM (ext. only) (built in) | 512 x 384 | n/a-bit | 8-bit | 640 x 400 | n/a-bit | n/a-bit | 640 x 480 | 8-bit | 8-bit | 800 x 600 | n/a-bit | 8-bit | 832 x 624 | n/a-bit | 8-bit | 1024 x 768 | n/a-bit | n/a-bit | 1152 x 870 | n/a-bit | n/a-bit | 1280 x 1024 | n/a-bit | n/a-bit |
Notes: At 8-bit setting, the 540�s LCD screen will display up to 64 grays. |
Physical | Software | Storage |
Introduced: | 5/16/1994 | Discontinued: | 10/17/1994 | Form Factor: | PowerBook 520 | Gestalt ID: | 72 | Weight (lbs): | 7.1 | Dimensions (in): | 2.3 H x 11.5 W x 9.7 D |
| Addressing Modes: | 32-bit | Orig SSW: | 7.1.1 | Orig Enabler: | PowerBook 500 Series Enabler | ROM ID: | n/a | ROM Ver: | n/a | ROM Size: | 2MB | AppleTalk Ver: | 57.0.4 | Mac OS Supported: | 7.1.1 7.5 7.5.1 7.5.3 7.5.5 7.6 7.6.1 8.0 8.1 |
| Floppy Size: | 1.44MB | Floppy Inject: | manual | Min. Int HD Size: | 240MB | Int HD Interface: | SCSI | Orig CD Speed | n/a | Int CD Support: | |
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