powerbook 540 PPC

The powerbook series to use a motorola 68LC040 cpu (simultaneous with duo 280) and be upgradeable to the powepc architecture via a swap out cpu daughter card (with the powerpc and 68040 upgrades for sale), use 9.5" dual scan passive color/b&w displays, 16bit stereo sound with stereo speakers, have an expansion bay, pc card capability, two battery bays (and a ten-minute sleep/clock battery, which allowed for main batteries to be swapped out while in sleep mode), full size keyboard with F1-F12 function keys, be able to sleep while connected to an external monitor and have a battery contact cover included on the actual batteries.

It included a single serial port which could be to connect to a serial printer or a network via apple's localtalk. In another first, it also included an AAUI port for connecting to non-localtalk (usually ethernet) networks.

powerbook 540ppc

Minimum OS: 7.1.1

Maximum OS: 8.1

Introduced: May 1994

Terminated: August 1995


CPU: Motorola PPC

CPU Speed: 100 MHz

FPU: none

Bus Speed: 33 MHz

Register Width: 32-bit

Data Bus Width: 32-bit

Address Bus Width: 32-bit

Level 1 Cache: 4 kB data, 4 kB instruction


RAM Type: unique

Min RAM Speed: 70 ns

Onboard RAM: 4 MB

RAM slots: 1

Maximum RAM: 36 MB

Expansion Slots: modem, optional type II/III PC Card bay


Screen: 9.5" active-matrix

Max Resolution: 16 bit 640x480

Video Out: 8 bit 832x624 (mirror only)


Hard Drive: 240-500 MB

Floppy Drive: 1.4 MB SuperDrive


ADB: 2

Serial: 1 Mini DIN-8


Audio Out: stereo 16 bit mini

Audio In: stereo 16 bit mini

Speaker: stereo

Microphone: mono