MCIMX508CZK8B Freescale Semiconductor, MCIMX508CZK8B Datasheet - Page 30

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MCIMX508CZK8B

Manufacturer Part Number
MCIMX508CZK8B
Description
Processors - Application Specialized CODEX REV 1.1
Manufacturer
Freescale Semiconductor
Type
Multimedia Applicationsr
Datasheet

Specifications of MCIMX508CZK8B

Core
ARM Cortex A8
Processor Series
i.MX50

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Electrical Characteristics
If the PMIC_RDY input is used and BYPASS_PMIC_VFUNCTIONAL_READY = 0, the i.MX50 will
wait for STBY_COUNT cycles after PMIC_STBY_REQ negation before checking PMIC_RDY status.
Once the STBY_COUNT has expired AND the PMIC_RDY signal has been asserted, the OSCNT counter
begins and the 24MHz oscillator is powered up. After OSCNT expires the processor will enter RUN mode.
If the PMIC_RDY input is not used, the processor will attempt to start the 24 MHz oscillator after
STBY_COUNT expires. So at a minimum, all the supplies necessary to start up the 24 MHz oscillator need
to be powered before STBY_COUNT expires: NVCC_SRTC,VDD1P2, VDD1P8, VDD2P5, VDD3P0.
After STBY_COUNT expires, the OSCNT counter begins and the 24 MHz oscillator is powered up. After
OSCNT expires the processor will enter RUN mode, so all other supplies need to be at the appropriate
operating levels before OSCNT expires.
4.3
This section includes the DC parameters of the following I/O types:
4.3.1
The parameters in
30
High-level output voltage
Low-level output voltage
DC Electrical Characteristics
2. OSCNT. This register is in the CCM block and may be set to a maximum of 256 x 32 kHz cycles,
or 8 msec. This counter is intended to give the 24MHz clock time to start up and stabilize.
General Purpose I/O and High-Speed General Purpose I/O (GPIO)
Double Data Rate 2 (DDR2)
Low Power Double Data Rate 2 (LPDDR2)
Low Power Double Data Rate 1(LPDDR1)
Low Voltage I/O (LVIO)
High Voltage I/O (HVIO)
Secure Digital Host Controllers (eSDHCv2 and eSDHCv3)
USB-OTG and USB Host ports
I/O DC Parameters
GPIO I/O DC Parameters
The term OVDD in this section refers to the associated supply rail of an
input or output.
Table 17
i.MX50 Applications Processors for Consumer Products, Rev. 4
are guaranteed per the operating ranges in
Table 17. GPIO DC Electrical Characteristics
Symbol
Voh
Vol
Iol=specified Drive
Ioh=spec’ed Drive
Test Conditions
Ioh=-1mA
Iol=1mA
NOTE
OVDD-0.15
0.8*OVDD
MIN
Table
11, unless otherwise noted.
Typ
Freescale Semiconductor
0.2*OVDD
MAX
0.15
Units
V
V

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