Intel 8088 microprocessor family


Production parts

Intel D8088
5 MHz
40-pin ceramic DIP
Intel D8088-2
8 MHz
40-pin ceramic DIP
Intel MD8088-2/B
8 MHz
40-pin ceramic DIP
Intel QD8088-2
8 MHz
40-pin ceramic DIP
Intel P8088
5 MHz
40-pin plastic DIP
Intel P8088-2
8 MHz
40-pin plastic DIP
Intel P8088-6
40-pin plastic DIP
Intel P80C88
5 MHz
40-pin plastic DIP
Intel P80C88AL
5 MHz
40-pin plastic DIP
Low power (CMOS) version
Intel P80C88A-2
8 MHz
40-pin plastic DIP
Low power (CMOS) version

Comments (1)

Not 5 MHz

2011-10-18 19:03:03
Posted by: Walter P.

I seem to remember it was actually 4.77MHz for the 8088. Close, but no cigar!

Response: Maximum processor frequency is 5 MHz. IBM PC used one 14.31818 oscillator to drive both the CPU and video. For video it was divided it by 4 (14.31818 / 4 = 3.58 MHz), and for CPU it was divided by 3, which why it was running at 4.77 MHz, and not at 5 MHz.
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At a glance

Type:
16-bit microprocessor
Introduction:
1979
Technology (micron):
3
Frequency (MHz):
5, 8