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LP55281 Datasheet(PDF) 3 Page - Texas Instruments |
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LP55281 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 35 page  LP55281 www.ti.com SNVS458B – JUNE 2007 – REVISED JUNE 2007 Table 1. Pin Descriptions (continued) Pin Name Type Description 5B IRGB Input Bias Current Set Resistor for RGB Drivers 5A GND_RGB1 Ground Ground for RGB1-2 Currents 4F GND_RGB2 Ground Ground for RGB3-4 Currents 4E GND Ground Ground 4D ASE2 Input Audio Synchronization Input 2 4C SI/A0 Logic Input Serial Input (SPI), Address Select (I2C) 4B SO Logic Output Serial Data Out (SPI) 4A R2 Output Red LED 2 Output 3F NRST Input Asynchronous Reset, Active Low 3E R4 Output Red LED 4 Output 3D VDD1 Power Supply Voltage 3C VDDIO Power Supply Voltage for Input/Output Buffers and Drivers 3B SCK/SCL Logic Input Clock (SPI/I2C) 3A G2 Output Green LED 2 Output 2F ALED Output Audio Synchronized LED Output 2E G4 Output Green LED 4 Output 2D ASE1 Input Audio Synchronization Input 1 2C IRT Input Oscillator Frequency Resistor 2B IF_SEL Logic Input Interface (SPI or I2C compatible) Selection (IF_SEL = 1 for SPI) 2A B2 Output Blue LED 2 Output 1F GND Ground Ground 1E B4 Output Blue LED 4 Output 1D GNDA Ground Ground for Analog Circuitry 1C VREF Output Reference Voltage 1B VDDA Power Internal LDO Output 1A VDD2 Power Supply Voltage Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LP55281 |
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