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74HC283PW Datasheet(PDF) 5 Page - NXP Semiconductors |
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74HC283PW Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 20 page 9397 750 13811 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Product data sheet Rev. 03 — 11 November 2004 5 of 20 Philips Semiconductors 74HC283 4-bit binary full adder with fast carry 6.2 Pin description 7. Functional description 7.1 Function table [1] H = HIGH voltage level; L = LOW voltage level. [2] Example for active HIGH: 10 + 9 (0 + 1010 + 1001) = 19 (10011). [3] Example for active LOW: 5 + 6 (1 + 0101 + 0110) = 12 (01100). Table 3: Pin description Symbol Pin Description S2 1 sum output 2 B2 2 B operand input 2 A2 3 A operand input 2 S1 4 sum output 1 A1 5 A operand input 1 B1 6 B operand input 1 CIN 7 carry input GND 8 ground (0 V) COUT 9 carry output S4 10 sum output 4 B4 11 B operand input 4 A4 12 A operand input 4 S3 13 sum output 3 B3 14 A operand input 3 A3 15 B operand input 3 VCC 16 positive supply voltage Table 4: Function table [1] Pins Input Output CIN A4 A3 A2 A1 B4 B3 B2 B1 COUT S4 S3 S2 S1 Logic levels L H L H L H L L H H L L H H Active HIGH [2] 0101010011 0 011 Active LOW [3] 1010101100 1 100 |
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