2- / 4-bit Microprocessors


3002

Manufacturer Intel Corp.
Category 2-Bit Slice Processor
Introduction 1974
Technology

The Intel 3002 was Intel's first entry into the Bit-slice marketplace and the first bipolar Bit-slice device. Introduced in the 3rd quarter of 1974, it is an unusual device in that it was a 2-bit device while most others devices were 4-bit devices. Providing a 2-bit slice rather than a 4-bit slice, the 3000 product line will require a significantly higher chip count than the 2900 series, resulting in increased cost with no compensating performance.
The 3002 is a peer of the Intel 8080, but the 8080 could only handle 8-bits of data at time. The 3002 was a 2-bit ALU, but 8 3002's could be linked together to create a computer that could handle 16-bits at a time. Whereas the 8080 would have to use multiple cycles to process 16 or 32 bits, the appropriate 3002 configuration could handle it in a single cycle giving such a computer significantly more power than the 8080.

Peripherals 3001: Microprogram Control Unit (28 pin CERDIP)
3003: Look-Ahead Carry Generator (28 pin CERDIP)
3212: Multimode Latch Buffer
3214: Interrupt Control Unit
3216: Parallel Bidirectional Bus Driver


Examples





Package



Examples






Package

 

Intel
C3002
Intel
C3002
Intel
D3002
28 PIN CERDIP
gold top
28 PIN CERDIP
gold top
28 pin CERDIP

 

Signetics
N3002I
Signetics
N3002N
Micron (USSR)
K589IK02
28 pin CERDIP
gold top
28 pin DIP 28 pin DIP

 

Clock Cycle

100 ns

Second source Signetics
Peripherals 3001 Microprogram Control Unit
3003 Look-Ahead Carry Generator
3212 Multimode Latch Buffer
3214 Interrupt Control Unit
3216 Parallel Bidirectional Bus Driver
3226 Parallel Bidirectional Bus Driver