3. TECHNICAL BRIEF

Integrated handset-level user interfaces

-Four programmable current sinks recommended as keypad backlight, LCD backlight, camera flash, and general-purpose drivers

-Vibration motor driver programmable from 1.2 to 3.1V in 100 mV increments

-Speaker driver with programmable gain, turn-on time, and muting; differential operation (drives external 8 Ω speakers with volume controlled 500 mW)

IC-level interfaces

-MSM device-compatible 3-line SBI for efficient initialization, status, and control

-Supports the MSM device’s interrupt processing with an internal interrupt manager

-Many functions monitored and reported through real-time and interrupt status signals

-Dedicated circuits for controlled power-on sequencing, including the MSM device’s reset signal

-Several events continuously monitored for triggering power-on/power-off sequences

-Supports and orchestrates soft resets

-USB-OTG transceiver for full-speed (12 Mb/s) and low speed (1.5 Mb/s) interfacing of the MSM device to computers as a USB peripheral, or connecting the MSM device to other peripherals - RUIM level translators enable MSM device interfacing with external modules

Twelve multi-purpose pins that can be configured as digital or analog I/Os, bi-directional I/Os, or current sinks. Default functions support the RUIM level translators, power-on circuits, analog multiplexer inputs, an LED driver, and a reference voltage buffer.

Highly integrated functionality in a small package - 84-pin BCCS with a large center slug for electrical ground, mechanical stability, and thermal relief

[Figure 1.6] MSM6245 Interface

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Image 27
LG Electronics U250 service manual MSM6245 Interface

U250 specifications

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In conclusion, the LG Electronics U250 combines striking design with versatile functionality, making it a formidable entry in the smartphone market. With its impressive display, powerful performance, advanced camera features, and strong battery life, the U250 is poised to meet the needs of modern users seeking both style and substance in a mobile device. Whether for work or leisure, this smartphone is designed to enhance everyday life.