PCIMX515CJM6C datasheet(18/184 Pages) FREESCALE

18 / 184 page

i.MX51 Applications Processors for Consumer and Industrial Products, Rev. 1

Freescale Semiconductor

Preliminary—Subject to Change Without Notice

Electrical Characteristics

3.1.1

Supply Current

4 The NVCC_IPUx rails are isolated from one another. This allows the connection of different supply voltages for each one. For

example, NVCC_IPU2 can operate at 1.8 V while NVCC_IPU4 operates at 3.0 V.

5 In Read mode, Freescale recommends VDD_FUSE be floated or grounded. Tying VDD_FUSE to a positive supply (3.0 V–3.3

V) increases the possibility of inadvertently blowing fuses and is not recommended.

6 The NAND Flash supplies are composed of three groups: A, B, and C. Each group can be powered with a different supply

voltage. For example, NVCC_NANDF_A = 1.8 V, NVCC_NANDF_B = 3.0 V, NVCC_NANDF_C = 2.7 V.

7 The analog supplies should be isolated in the application design. Use of series inductors is recommended.

8 Operation of the HS-I2C and I2C is not guaranteed when operated between the supply voltages of 1.95 to 2.7 V.

Table 9. Interface Frequency

Parameter Description

Symbol

Min

Max

Unit

JTAG: TCK Operating Frequency

ftck

See Table 86, "JTAG Timing," on page 119

MHz

CKIL: Operating Frequency

fckil

See Table 61, "FPM Specifications," on page 69

kHz

CKIH: Operating Frequency

fckih

See Table 34, "CAMP Electrical Parameters (CKIH1,

CKIH2)," on page 37

MHz

XTAL Oscillator

fxtal

MHz

Table 10. Fuse Supply Current

Description

Symbol

Min

Typ

Max

Unit

eFuse Program Current.1

Current to required to program one eFuse bit: The associated

VDD_FUSE supply per Table 8.

1 The current I

program is only required during program time (tprogram).

Iprogram

—60

TBD

eFuse Read Current2

Current necessary to read an 8-bit eFuse word

2 The current I

read is present for approximately TBD ns of the read access to the 8-bit word. The current is derived from the

DDR supply (NVCC_EMI_DRAM).

Iread

—TBD

TBD

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