Major Chips Description2-452.5.3 Pin Diagram9 P 4 . 2 / C M S R 28 P 4 . 1 / C M S R 17 P 4 . 0 / C M S R 06 E W #5 P W M 1 #4 P W M 0 #3 S T A D C2 V D D1 P 5 . 0 / A D C 06 8 P 5 . 1 / A D C 16 7 P 5 . 2 / A D C 26 6 P 5 . 3 / A D C 36 5 P 5 . 4 / A D C 46 4 P 5 . 5 / A D C 56 3 P 5 . 6 / A D C 66 2 P 5 . 7 / A D C 76 1 A V D D6 0 A V S S5 9 A V r e f +5 8 A V r e f –5 7 P 0 . 0 / A D 05 6 P 0 . 1 / A D 15 5 P 0 . 2 / A D 25 4 P 0 . 3 / A D 35 3 P 0 . 4 / A D 45 2 P 0 . 5 / A D 55 1 P 0 . 6 / A D 65 0 P 0 . 7 / A D 74 9 E A # / V P P4 8 A L E / P R O G #4 7 P S E N #4 6 P 2 . 7 / A 1 54 5 P 2 . 6 / A 1 44 4 P 2 . 5 / A 1 34 3 P 2 . 4 / A 1 24 2 P 2 . 3 / A 1 14 1 P 2 . 2 / A 1 04 0 P 2 . 1 / A 0 93 9 P 2 . 0 / A 0 83 8 N C3 7 V S S3 6 V S S3 5 X T A L 13 4 X T A L 23 3 N C3 2 N C3 1 P 3 . 7 / R D3 0 P 3 . 6 / W R2 9 P 3 . 5 / T 12 8 P 3 . 4 / T 02 7 P 3 . 3 / I N T 1P 4 . 3 / C M S R 3 1 0P 4 . 4 / C M S R 4 1 1P 4 . 5 / C M S R 5 1 2P 4 . 6 / C M T 0 1 3P 4 . 7 / C M T 1 1 4R S T 1 5P 1 . 0 / C T 0 I 1 6P 1 . 1 / C T 1 I 1 7P 1 . 2 / C T 2 I 1 8P 1 . 3 / C T 3 I 1 9P 1 . 4 / T 2 2 0P 1 . 5 / R T 2 2 1P 1 . 6 / S C L 2 2P 1 . 7 / S D A 2 3P 3 . 0 / R x D 2 4P 3 . 1 / T x D 2 5P 3 . 2 / I N T 0 2 6Figure 2-7 87C552 Pin Diagram
