General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

METAL AND CERAMIC MATERIALS OF CONSTRUCTION.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

2.0 cm

Width

1.9 cm

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Electricity & electronics

Sub-Category

N/A

Manufacturer

AKA

INTEL

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

North America

State/Province

Unknown

Period

This type of IC made and presumably used in 1970s- early 1980s, and possibly later.

Canada

Part of a collection of early solid-state devices assembled by the donor and his father during their careers as electronics technicians. (ref. 1)

Function

To retain data in memory permenantly as long as power is applied.

Technical

Examples of early static RAM chips, in which the transistor itself is a Flip/Flop switch, with one position meaning 1 and the other meaning 0. Each Flip/Flop requires several transistors to operate, which makes static RAM less dense and the cost per byte much higher than dynamic RAM. Static RAM also use much more power than dynamic RAM. They are, however, much quicker in terms of access speed. (ref. 3)

Area Notes

Unknown

Details

Markings

.1 "i [Intel logo]/ D2125A/ 7C963" printed in off-white on case top. "7925/ PHILIPPINES Y" printed in off-white on underside..2 "i [Intel logo]/ P2101A-4/ 58408" printed in off-white on case top. "Malaysia/ 7805 2101A" printed in off-white on underside.

Missing

None.

Finish

.1 Medium brown ceramic case; 8 Silver metal pins..2 Dark brown/Black ceramic case; 11 silver metal pins.

Decoration

N/A