MC34708 datasheet(22/159 Pages) FREESCALE

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Analog Integrated Circuit Device Data



Freescale Semiconductor

MC34708

General Description

6.2

Block Diagram

Figure 4. Functional Block Diagram

6.3

Functional Description

The MC34708 Power Management Integrated Circuit (PMIC) represents a complete system power solution in a single package.

Designed specifically for use with the Freescale i.MX50/53 families. The MC34708 integrates six multi-mode buck regulators and

eight LDO regulators for direct supply of the processor core, memory and peripherals.

The USB switch enables the use of a single, mini or micro USB connector for USB, UART and audio connections, switching the

relevant signals to the connector depending on the type of device connected. In addition, the MC34708 also integrates a real

time clock, coin cell charger, a 13-channel 10-bit ADC, 5 V USB Boost regulator, two PWM outputs, touch-screen interface, status

LED drivers and four GPIOs.

10-BIT ADC CORE

General Purpose

Resistive Touch

Screen Interface

32.768 kHz CRYSTAL

OSCILLATOR

Real Time Clock

SRTC Support with

Coin Cell Charger

SIX BUCK

REGULATORS

Processor Core

Split Power Domains

DDR Memory

I/O

EIGHT LDO

REGULATORS

Peripherals

5 V BOOST

REGULATOR

USB On The Go

Supply

MINI/MICRO USB

INTERFACE

USB/UART/Audio

Auto Accessory Detect

BIAS &

REFERENCES

Trimmed Bandgap

GENERAL PURPOSE

I/O & PWM OUTPUTS

Dual LED Indicator

POWER CONTROL

LOGIC

State Machine

CONTROL

INTERFACE

SPI/I

MC34708

MC34708 数据表(PDF) 22 Page - Freescale Semiconductor, Inc

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