MCIMX280CVM4B Просмотр технического описания (PDF) - Freescale Semiconductor

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MCIMX280CVM4B

i.MX28 Applications Processors Data Sheet for Consumer Products

Freescale Semiconductor 

Table 17. Recommended Operating Conditions—AHB Clock (clk_h)

Minimum

VDDD (V)

Minimum

VDDDBrown-out (V)

HW_DIGCTRL

ARMCACHE1

HW_CLKCTRL

AHBCLK / clk_h

FRAC_CPUFRC / PFD Frequency max (MHz)

TBD

TBD

00

27 - 35

TBD

1.350

1.250

00

18 - 35

160

1.450

1.350

00

18 - 35

196

1.550

1.45

00

18 - 35

206

1 All timing control bit fields in HW_DIGCTRL_ARMCACHE should be set to the same value.

Table 18. Frequency vs. Voltage for EMICLK—289-Pin BGA Package

Minimum

VDDD (V)

1.550

1.450

1.350

Minimum

VDDDBrownout (V)

1.450

1.350

1.250

EMICLK Fmax (MHz)

DDR2

205.71

196.36

196.36

mDDR

205.71

196.36

196.36

3.1.3 Fusebox Supply Current Parameters

Table 19 lists the fusebox supply current parameters.

Table 19. Fusebox Supply Current Parameters

Parameter

Symbol

Min

eFuse Program Current1

Current to program one eFuse bit

efuse_vddq=2.5V

Iprogram

21.39

eFuse Read Current2

Current to read an 8-bit eFuse word

vdd_fusebox = 3.3 V

Iread

—

1 The current Iprogram is during program time.

2 The current Iread is present for approximately 10 ns of the read access to the 8-bit word.

Typ

25.05

—

Max

33.54

4.07

Units

mA

mA

3.1.4 Interface Frequency Limits

Table 20 provides information for interface frequency limits.

Table 20. Interface Frequency Limits

Parameter

Min.

Typ.

Max.

JTAG: TCK Frequency of Operation

OSC24M_XTAL Oscillator

OSC32K_XTAL Oscillator

—

—

10

—

24.000

—

—

32.768/32.0

—

Units

MHz

MHz

KHz

i.MX28 Applications Processors Data Sheet for Consumer Products, Rev. 1

Freescale Semiconductor

17

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