Home > PowerBook and PowerBook Duo Specs > PowerBook 540c



Apple, Inc.
Image Credit:  Apple, Inc.





(Click) 1994 Apple Computer
"PowerBook 500 In Depth" Magazine Ad


Introduced: May 16, 1994
Terminated: August 26, 1995

Logic Board
Processor:   68LC040
Processor Speed:   33 MHz
  • The clock input runs at 66 MHz; however, the processor itself is clocked at 33 MHz, so technically it is only a 33 MHz processor.
PMMU:   Integrated
FPU:   none
Bus Speed:   33 MHz
Data Path:   32-bit
ROM Size:   2 MB
Level 1 Cache:   8K
Level 2 Cache:   none
Expansion Slots:   Modem
Battery:   PB500, NiMH


MacUser July 1994
Image Credit:  MacUser, July 1994



Memory
RAM Type:   PB5xx
RAM Slots:   1
Min - Max RAM:   4 MB - 36 MB
Minimum RAM Speed:   70 ns
Install in groups of:   1
RAM Sizes:   4, 8, 12, 20, 32 MB
Onboard RAM:   4 MB


Macworld, July 1994
Image Credit:  Macworld, July 1994



Ports
ADB:   1
USB:   none
FireWire:   none
Video:   mini-15
Floppy:   none
SCSI:   HDI-30
Geoports:   none
Ethernet:   AAUI-15
AirPort Ready:   No
Mic Type:   Line in
Other ports:   Printer, speaker


Apple, Inc.
Image Credit:  Apple, Inc.


Apple, Inc.
Image Credit:  Apple, Inc.




Macworld, July 1994
Image Credit:  Macworld, July 1994



Video
Display:
  • 9.5" Color active-matrix (8-bit, 256 colors) LCD display
Resolution (built-in LCD):
  • 640 x 400, 16-bit
  • 640 x 480, 8-bit
Resolution External Only (512K VRAM):
  • 512 x 384, 8-bit
  • 640 x 480, 8-bit
  • 800 x 600, 8-bit
  • 832 x 624, 8-bit


MacUser July 1994
Image Credit:  MacUser, July 1994



Storage
Standard CD-ROM:   none
Internal Hard Drive:   SCSI (240 - 500 MB)
Floppy Disk Drive:   1.44 MB manual

Operating System
Addressing Modes:   32-bit
Original OS:   7.1.1
Original Enabler:   PowerBook 500 Series Enabler
AppleTalk Version:   57.0.4

Compatible MacOS:
7.1.1
7.5
7.5.1
7.5.3
7.5.5
7.6
7.6.1
8.0
8.1



MacUser, July 1994
Image Credit:  MacUser, July 1994




Macworld, July 94
(Macworld, July 94) The 500-series PowerBooks offered a full size keyboard for typing. There was also a row of function keys as well as escape and power-on keys along the top row. Missing were page up and page down keys.



Miscellaneous
Codename:   BlackBird, SR-71, Spruce Goose
Form Factor:   PowerBook 520
Dimensions (Inches):   2.3 H x 11.5 W x 9.7 D
Average Weight (lbs):   7.3
Gestalt ID:   72
Original Price:   $4800, $5000, $5200


(Click) Apple Dealer Spec Sheets





(Click) MacUser, July 1994, 500-Series Modular Design





(Click) Macworld, July 1994, The Pull-Apart PowerBook




Manuals at Apple.com:

PowerBook 540c

PowerBook PowerPC Upgrade Guide

PowerBook 540c Getting Started

PowerBook 540c User's Guide