Text preview for : PowerBook 100.pdf part of apple PowerBook 100 apple PowerBooks PB 100 Series PowerBook 100.pdf
Back to : PowerBook 100.pdf | Home
K Service Source
PowerBook 100
K Service Source
Specifications
PowerBook 100
Specifications Processor - 1
Processor
CPU Motorola 68HC000, 16-bit CMOS microprocessor
15.6672 MHz
Addressing 32-bit internal registers
24-bit address bus
16-bit data bus
Specifications Memory - 2
Memory
RAM 2 MB of 100 ns pseudostatic RAM (PSRAM) standard, expandable
to 8 MB
ROM 256K (two 128K by 8-bit devices); 150 ns access time;
addressing supports up to 4 MB
PRAM 128 bytes of parameter memory
VRAM 32K of pseudostatic video display memory
Clock/Calendar CMOS custom chip with long-life lithium battery
Specifications Disk Storage - 3
Disk Storage
Floppy Drive External Macintosh HDI-20 1.4 MB drive
(Optional) 4.5 W startup power; 1.25 W random operation; 50 mW idle
20 MB Hard Drive 20 MB formatted capacity
Apple SCSI interface; 2.5 in. mechanism
23 msec average access time (maximum)
5.0 W startup power; 2.7 W random operation
40 MB Hard Drive 40 MB formatted capacity
Apple SCSI interface; 2.5 in. mechanism
<19 msec average access time (maximum)
5.0 W startup power; 2.25