GI SBA-1
Manufacturer	General Instrument
Model Number	SBA-1
Market	Industrial
Introduction	November, 1977 (launch)
General information
Family	SBA
Clock	10 kHz-800 kHz
Microarchitecture
Technology	nMOS
Word size	1 bit 0.125 octets 0.25 nibbles
Electrical
Op. Temp	0 °C – 70 °C
Supply VDD	12 V
Supply VSS	0 V
RAM	120 b 1.5e-5 MB 0.015 kB 15 B 1.5e-8 GB (120x1 bits)
Stack	16 levels
Pins
I/O ports	31
Package	DIP40 (DIP)

The GI SBA-1 is a 1-bit microcontroller developed by General Instrument as part of their SBA family. This is an identical version of the SBA without the on-chip ROM. ROM data lines instead were brought out allowing external RAM or ROM to be hooked up.

ISA

Main article: SBA Instruction Set

This chip had 24 instructions, all 8-bit words, and had a single-cycle datapath.

See Also

• SBA

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