Artifact Details

Description

Object is a 28-pin dual inline packaged integrated circuit. The TMC0501 Arithmetic chip contains a decimal ALU (Arithmetic and Logic Unit) with a accuracy of 13 digits. Each result is represented in 16 digits, 13 digits for the mantissa, 2 digits for the exponent and one digit for the signs and overflow bits. There are in total 5 registers of 16 digits for storage purposes.
Additional functions of the TMC0501 include the segment outputs of the display and the keyboard scanning input. Both the scanning of the display digits and the keyboard is done by the SCOM companion chip.

Date

circa 1972

Manufacturer

Texas Instruments Incorporated (TI)

Identifying Numbers

Model number	TMC 0501	Printed on top
Other number	0501 45	Printed on bottom
Other number	E 7345	Printed on top

Dimensions

overall: 1/4 in x 5/8 in x 1 3/8 in

Category

Component/Semiconductor/IC

Credit

Gift of Michael J. Cochran

Lot Number

X7799.2016