MCF52235 datasheet(33/54 Pages) FREESCALE

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Electrical Characteristics

MCF52235 ColdFire Microcontroller Data Sheet, Rev. 7

Freescale Semiconductor

2.4

Phase Lock Loop Electrical Specifications

Table 23. Active Current Consumption Specifications

Characteristic

Symbol

Typical

Peak

Unit

Running from

SRAM,

EPHY Off

Running from

Flash,

EPHY Off

Running from

Flash, EPHY

10BaseT

Running from

Flash, EPHY

100BaseT

Active current, core and I/O

PLL @25 MHz

PLL @60 MHz

IDDR+IDDX

+IDDA

130

138

150

220

260

310

290

340

Analog supply current

Normal operation

Low-power STOP

IDDA

μA

Table 24. Current Consumption Specifications in Low-Power Modes1

1 All values are measured with a 3.30 V power supply.

Mode2

2 Refer to the “Power Management” chapter in the MCF52235 ColdFire® Integrated

Microcontroller Reference Manual for more information on low-power modes.

PLL @25 MHz

(typical)3

3 These values were obtained with CLKOUT and all peripheral clocks except for the CFM clock

disabled prior to entering low-power mode. The tests were performed at room temperature. All

code was executed from flash memory; running code from SRAM further reduces power

consumption.

PLL @60 MHz

(typical)3

PLL @60 MHz

(peak)4

4 These values were obtained with CLKOUT and all peripheral clocks enabled. All code was

executed from flash memory.

Unit

STOP mode 3 (STPMD[1:0]=11)

0.2

1.0

STOP mode 2 (STPMD[1:0]=10)

—

STOP mode 1 (STPMD[1:0]=01)

—

STOP mode 0 (STPMD[1:0]=00)

—

WAIT

—

DOZE

—

RUN

—

Table 25. PLL Electrical Specifications

(VDD and VDDPLL = 2.7 to 3.6 V, VSS = VSSPLL = 0 V)

Characteristic

Symbol

Min

Max

Unit

PLL reference frequency range1

Crystal reference

External reference

fref_crystal

fref_ext

10.0

MHz

System frequency 2

External clock mode

On-Chip PLL Frequency

fsys

fref / 32

MHz

Loss of reference frequency 3, 5

fLOR

100

1000

kHz

Self clocked mode frequency 4, 5

fSCM

MHz

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