MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 896

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX281AVM4B

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 454MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Program Memory Size: 128KB (32K x 32)
• Program Memory Type: Mask ROM
• Ram Size: 32K x 32
• Voltage - Supply (vcc/vdd): 1.25 V ~ 5.25 V
• Data Converters: A/D 17x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Overview
The i.MX28 power supply is designed to offer maximum flexibility and performance, while
minimizing external component requirements.
of the power supply components including switching converters, five regulators, battery
charge support, as well as battery monitoring, supply brownout detection, and silicon
process/temperature sensors. This figure can be used to understand which register and status
bits relate to which subsystems, but it is not intended to be a complete architecture
description.
Status Bits are in Italic
896
Notes:
X
Charge
Battery
Battery
b. DCDC input current (which ultimately provides current to the on-chip and off-chip
loads) as the priority and battery charge current will be automatically reduced if
the 5 V current limit is reached.
Current
Limiter
IOFB, AFB, DFB
HW_POWER_CTRL_DC_OK_IRQ
VDD4P2
DCDC
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Figure 11-1. Power Supply Block Diagram
HW_POWER_STS_VDD4P2_BO
VBG
X
VDD4P2
X
Figure 11-1
VDD5V
IOFB
AFB
DFB
VDDIO
VDDA
VDDD
shows a functional block diagram
HW_POWER_STS_VDDIO_BO
VBG
VBG
VBG
HW_POWER_STS_VDDD_BO
HW_POWER_STS_VDDA_BO
Freescale Semiconductor, Inc.
X
X
X
VDDIO
VDDD
VDDA
VDDMEM
VBG
VDDMEM
X