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MCS-80

The original 8080 had an issue that prevented it from working with external TTL components as intended. This was fixed with the introduction of the "A" versions.

Part Frequency Description Photo
8080 500 kHz - 2.08 MHz MPU, Original, has compatibility issues with TTL C8080 N1602_1.jpg
8080A500 kHz - 2.08 MHzMPU

C8080A S2289 Malay 7725.jpg

C8080A Purple.jpg

8080A-1 500 kHz - 3.12 MHz MPU
C8080A-1.jpg
8080A-2 500 kHz - 2.63 MHz MPU
C8080A-2.jpg
8224
clock generator & driver
8801
clock generator crystal
8228
system controller & bus driver
8238
system controller & bus driver
8257
Programmable DMA Controller
8259
Programmable Interrupt Controller
8279
Programmable Keyboard/Display Controller
8271
Programmable Floppy Disk Controller
8222
Dynamic RAM Refresh Controller
8205
1 Of 8 Binary Decoder
8210
TTL To MOS Shifter & High Voltage Clock Driver
8212
8 Bit I/O Port
8214
Priority Interrupt Control Unit
8216
4 Bit Parallel Bidirectional Bus Driver
8251A
Improved Programmable Communication Interface
8253
Programmable Interval Timer
8255
Programmable Peripheral Interface
C8255.jpg
8255A
Improved Programmable Peripheral Interface

Military Specs

The following are military specs versions.

Part Frequency Description Photo
M8080A 500 kHz - 2.08 MHz MPU MC8080A B.jpg
M8224
clock generator & driver
M8228
system controller & bus driver
M8238
system controller & bus driver

Memory

Additional memory components that was used with the MCS-80

Part Size Description
8708 1024x8 bit EPROM
2716 2048x8 bit EPROM (pin compatible with 2316E ROM)
8308 1024x8 bit MOS ROM (pin compatible with 8708 PROM)
8316A 2048x8 bit MOS RAM
2316E 2048x8 bit ROM
2114 1024x4 bit SRAM
2116 16384x1 bit DRAM