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CD4008BMS Arkusz danych(PDF) 1 Page - Intersil Corporation |
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CD4008BMS Arkusz danych(HTML) 1 Page - Intersil Corporation |
1 / 8 page 7-675 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 CD4008BMS CMOS 4-Bit Full Adder With Parallel Carry Out Pinout CD4008BMS TOP VIEW Logic Diagram TRUTH TABLE Ai Bi Ci CO SUM 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 1 0 1 1 1 0 1 1 0 1 0 0 1 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 A4 B3 A3 B2 A2 B1 VSS A1 VDD CO S4 S3 S2 S1 C1 B4 SUM SUM SUM SUM HIGH SPEED PAR CARRY (CARRY-OUT) * * * * * * * * * 15 1 2 3 4 5 6 7 9 B4 A4 B3 A3 B2 A2 B1 A1 C1 CO S4 S3 S2 S1 14 13 12 11 10 (CARRY-IN) C4 C3 C2 VDD VSS VDD = 16 VSS = 8 *ALL INPUTS ARE PROTECTED BY CMOS PROTECTION NETWORK Features • High-Voltage Type (20V Rating) • 4 Sum Outputs Plus Parallel Look-ahead Carry-Output • High-Speed Operation - Sum In-To-Sum Out, 160ns Typ; Carry In-To-Carry Out, 5ns Typ. At VDD = 10V, CL=50pF • Standardized Symmetrical Output Characteristics • 100% Tested For Quiescent Current At 20V • Maximum Input Current of 1 µa at 18V Over Full Pack- age-Temperature Range; - 100nA at 18V and 25oC • Noise Margin (Over Full Package Temperature Range): - 1V at VDD = 5V - 2V at VDD = 10V - 2.5V at VDD = 15V • 5V, 10V and 15V Parametric Ratings • Meets All Requirements of JEDEC Tentative Standard No. 13B, “Standard Specifications for Description of ‘B’ Series CMOS Devices” Applications • Binary Addition/Arithmetic Units Description CD4008BMS types consist of four full adder stages with fast look ahead carry provision from stage to stage. Circuitry is included to provide a fast “parallel-carry-out” but to permit high-speed operation in arithmetic sections using several CD4008BMS’s. CD4008BMS inputs include the four sets of bits to be added, A1 to A4 and B1 to B4, in addition to the “Carry In” bit from a previous section. CD4008BMS outputs include the four sum bits, S1 to S4. In addition to the high speed “parallel-carry- out” which may be utilized at a succeeding CD4008BMS section. The CD4008BMS is supplied in these 16-lead outline pack- ages: Braze Seal DIP H4T Frit Seal DIP H1F Ceramic Flatpack H6W November 1994 File Number 3292 |
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