CPU Shack: BIT 32-bit FPU/ALU Chips

[CPUShack]

Here are some uncommon ones.

The B21xx was a complete 32-bit floating point chip set that was released in 1987. the B2120 handled all the ALU functions, while the B2110 was the multiplier. It was designed by Bob Elkind who was one of the original employees of BIT and oversaw the development, layout, and packaging of most of their early products.

More info here: http://www.cpushack.com/2013/05/16/alu-of-the-day-bipolar-b2120a-30/

Similar chips (if not the same design) were used by HOP for the PC-X Processor. THese are all solder ulls, and may have a few small chips on them, overall nice rare chips though


2110 32-bit FP Multipliers
2x BIT 2110C2 $12
1x BIT 2110C2 missing 1 pin $9
SOLDx BIT 2110C3 $12
SOLDx BIT 2110E7 Late model w/ gold back, missing one pin $10

2120 32-bit FP ALUs
4x BIT 8015A1 (equiv to 2120A1) $12
1x BIT 8015A1 (equiv to 2120A1) missing 1 pin $9
SOLDx BIT 2120C1 missing several pins (reserved for BirdMan) $6
SOLDx BIT 2120F1 Late model gold back $15

[Birdman.]

OK, nice!

I'll take
1x BIT 2110C2 missing 1 pin $9
1x BIT 2120C1 missing several pins (reserved for BirdMan) $6
so that we can compare dies to ADSP-3210 and ADSP-3220.

[Vegeta]

1x BIT 2110C2 $12
1x BIT 2110C3 $12

1x BIT 8015A1 (equiv to 2120A1) $12
1x BIT 2120F1 Late model gold back $15

[tunder10]

1x1x BIT 2110E7 Late model w/ gold back, missing one pin $10

[tunder10]

1x BIT 2110C2 $12

[tunder10]

1x BIT 8015A1 (equiv to 2120A1) $12

[magictom]

1x BIT 2110C2 $12

[CPUShack]

Updated, several left

[Qwerty]

I'll take:

1x BIT 2110C2 $12
1x BIT 8015A1 (equiv to 2120A1) $12

Thanks!