TMC2250A Datasheet, PDF (3/23 Pages) Fairchild Semiconductor – Matrix Multiplier 12 x 10 bit, 50 MHz

TMC2250A
PRODUCT SPECIFICATION
Table 2. Bit Weightings for Input and Output Data Words
Bit Weights 2¹¹ 2¹⁰ 2⁹ 2⁸ 2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰ . 2^-1 2^-2 2^-3 2^-4 2^-5 2^-6 2^-7 2^-8 2^-9
Inputs
All Modes
-I₁₁ I₁₀ I₉ I₈ I₇ I₆ I₅ I₄ I₃ I₂ I₁ I₀ .
Data A, B, C
Coefficients
KA, KB, KC
-K₉ . K₈ K₇ K₆ K₅ K₄ K₃ K₂ K₁ K₀
Modes 01, -CI₁₅ CI₁₄ CI₁₃ CI₁₂ CI₁₁ CI₁₀ CI₉ CI₈ CI₇ CI₆ CI₅ CI₄ . CI₃ CI₂ CI₁ CI₀
10, 11 CASIN
Internal Sum X₂₀ X₁₉ X₁₈ X₁₇ X₁₆ X₁₅ X₁₄ X₁₃ X₁₂ X₁₁ X₁₀ X₉ . X₈ X₇ X₆ X₅ X₄ X₃ X₂ X₁ X₀
Outputs
Mode 00
X, Y, Z
-O₁₁ O₁₀ O₉ O₈ O₇ O₆ O₅ O₄ O₃ O₂ O₁ O₀ .
Modes 01,
10, 11
CASOUT
- CO₁ CO₁ CO₁ CO₁ CO₁ CO CO CO CO CO CO₄ . CO CO CO CO
CO_{15 4}
3
2
1
0 98765
3210
Note: A minus sign indicates a two’s complement sign bit.
REV. 1.0.2 10/25/00
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