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PCF8577CT 数据表(PDF) 18 Page - NXP Semiconductors |
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PCF8577CT 数据表(HTML) 18 Page - NXP Semiconductors |
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18 / 28 page ![]() 1998 Jul 30 18 Philips Semiconductors Product specification LCD direct/duplex driver with I2C-bus interface PCF8577C Fig.17 Use of PCF8577C as a 32-bit output expander in I2C-bus application. MODE bit must always be set to logic 0 (direct drive). BANK switching is permitted. BP1 must always be connected to VSS and A0/OSC must be connected to either VDD or VSS (no LCD modulation). MGA734 VDD VSS SDA SCL A0 A1 BP2 BP1 S32 S31 S1 S2 PCF8577C OSC A2 VDD VSS SDA SCL device subaddress A2, A1, A0 = 000 expansion 32 output lines |
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