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ST8034C bảng dữ liệu(PDF) 2 Page - STMicroelectronics |
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2 / 39 page Contents ST8034T, ST8034AT, ST8034P, ST8034C 2/40 DocID024587 Rev 4 Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics over recommended operating conditions . . . . . . . . . . . 14 6 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.1 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2 Voltage supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2.1 Voltage supervisor ST8034T and ST8034AT . . . . . . . . . . . . . . . . . . . . . 22 6.2.2 Voltage supervisor with PORADJ function (ST8034P and ST8034C) . . 23 6.3 Clock circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6.3.1 ST8034T and ST8034AT clock possibilities . . . . . . . . . . . . . . . . . . . . . . 25 6.3.2 ST8034P and ST8034C clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.4 Input and output circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.5 Shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.6 Activation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6.7 Deactivation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.8 VCC generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6.9 Fault detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6.10 Card supply voltage (VCC) selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.10.1 Automatic determining of card supply voltage (VCC) - all versions except ST8034P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.10.2 Card supply (VCC) selection by tristate VCC_SEL pin (ST8034P only) . 32 6.11 Chip select (ST8034C only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 8 Tape and reel information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 |
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Mô tả tương tự - ST8034C |
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