Home > Pre-PPC Specs > Macintosh LC 575



Macworld, April 1994
Image Credit:   Macworld, April 1994


Apple, Inc.
Image Credit:   Apple, Inc.


Introduced: February 2, 1994
Terminated: April 3, 1995

Logic Board
Processor:   68LC040
Processor Speed:   33 MHz
Processor Upgrade:   66 MHz with PPC 601, 66 MHz Upgrade Card
PMMU:   Integrated
FPU:   None - available via a 68040 upgrade
Bus Speed:   33 MHz
Data Path:   32-bit
ROM Size:   1 MB
Level 1 Cache:   8K
Level 2 Cache:   none
Expansion Slots:   LC PDS (filled if using PPC 601, 66 MHz Upgrade Card), Comm
Battery:   4.5V Alkaline

Note:
  • Apple sold the LC 575 with a red label on the box stating that it was "Ready for PowerPC Upgrade." Apple offered a 66 MHz, PowerPC 601 upgrade card (Macintosh Processor Upgrade Card) for the LC 575. Apple sold the LC 575 with PPC upgrade beginning November 3, 1994 and terminating March 2, 1996.


Macworld, April 1994
Image Credit:   Macworld, April 1994



Memory
RAM Type:   72-pin SIMM
RAM Slots:   1
Min - Max RAM:   4 MB - 36 MB
Minimum RAM Speed:   80 ns
Install in groups of:   1
RAM Sizes:   1, 2, 4, 8, 16, 32 MB
Onboard RAM:   4 MB


Macworld, June 1994
Image Credit:   Macworld, June 1994



Ports
ADB:   1
USB:   none
FireWire:   none
Video:   none
Floppy:   none
SCSI:   DB-25
Geoports:   none
Ethernet:   none
Mic Type:   PlainTalk
Other ports:   Printer, modem, speaker, headphone

Video
Standard VRAM:   512K (2 x 256K)
Maximum VRAM:   1 MB (2 x 512K)

Display Resolution:
  • 640 x 480, 8-bit (Built-in), 16-bit (2 x 512K)

Storage
Standard CD-ROM:   2x
Internal Hard Drive:   SCSI (160 - 320 MB)
Floppy Disk Drive:   1.44 MB manual


Apple, Inc.
Image Credit:   Apple, Inc.


Operating System
Addressing Modes:   32-bit
Original OS:   7.5
Original Enabler:   601 Processor Upgrade Enabler (if PPC 601, 66 MHz Upgrade Card used)

Compatible MacOS:
7.5
7.5.1
7.5.3
7.5.5
7.6
7.6.1
8.0
8.1
8.5 (Requires PPC 601, 66 MHz Upgrade Card)

For additional information on operating systems:
See this article

Miscellaneous
Codename:   Optimus
Form Factor:   LC 520
Dimensions (Inches):   17.9 H x 13.5 W x 16.5 D
Average Weight (lbs):   40.5
Gestalt ID:   105
Original Price:   $1700 US


Macworld, April 1994
Image Credit:   Macworld, April 1994