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TMS1000 Series - TI
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The TMS1000 Series was a family of 4-bit microprocessors designed and manufactured by Texas Instruments in the early 1970s. Originally made using pMOS technology, TI later expended the family into nMOS and CMOS.

History

In September of 1971, the TMS1000 was completed. It was the first microprocessors ever created, designed by Texas Instruments engineers Gary Boone and Michael Cochran. Gary patented the invention on Aug 31, 1971. On Sep 4, 1973, he was awarded U.S. Patent 3,757,306. Unlike Intel's chips, TI's was not placed into the general market until 1974. Instead TI used the chip for their calculators.[1]

After being slightly refined, the chip was released to general market in 1974. A few dozen different variations were created with various ROM and RAM sizes.[1] Due to its cheap price, the TMS1000 family enjoyed a tremendous success in consumer electronics being used in everything from calculators, toys, games, and various appliances as well as photocopying machines and juke boxes.[1]

Overview

The TMS 1000 had a relatively simple design with only 43 instructions and 2 general purpose registers. Similar to the Intel 4004, the chip only had a single level of stack and no interrupts.

Chips

Part Number ROM RAM I/O Pins Technology Notes
TMS1000 1K 64x4 23 pMOS
TMS1000C 1K 64x4 23 CMOS Identical to TMS1000, CMOS
TMS1018 - 64x4 4 pMOS
TMS1070 1K 64x4 pMOS Built-in VF display controllers
TMS1098 - 128x4 pMOS
TMS1099 - 64x4 pMOS
TMS1099C - 64x4 CMOS Identical to TMS1099, CMOS
TMS1100 2K 128x4 pMOS
TMS1117 2K 128x4 pMOS
TMS1200 1K 64x4 pMOS
TMS1200C 1K 64x4 CMOS Identical to TMS1200, CMOS
TMS1270 1K 64x4 pMOS
TMS1300 2K 128x8 23 pMOS
TMS1400 4K 128x4 22 pMOS
TMS1600 4K 128x4 33 pMOS
TMS1700 512 32x4 21 pMOS
TMS2000 1K 64x4 nMOS nMOS version of TMS1000
TMS2100 2K 128x4 nMOS nMOS version of TMS1100
TMS2200 1K 64x4 nMOS nMOS version of TMS1200
TMS2300 2K 128x8 nMOS nMOS version of TMS1300
TMS2098 - 128x4 nMOS engineering sample
TMS2099 - 64x4 nMOS engineering sample

Documents

References