MPC5675K datasheet(97/140 Pages) FREESCALE

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Electrical characteristics

MPC5675K Microcontroller Data Sheet, Rev. 4

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

— All inputs are tolerant up to their VDD_HV_DRAM Absolute Maximum Rating

— Data and strobe pads can be configured to support four signal termination options

– Infinite/no termination

– 50 Ohms

– 75 Ohms

– 150 Ohms

The electrical data provided in Section 3.19, DRAM pad specifications, applies to the pads listed in

Table 46.

All three pad types can be configured to support SDR, DDR, DDR2 half and full strength, and LPDDR

half and full strength modes, according to Table 47.

3.19.1

DRAM pads electrical specifications (VDD_HV_DRAM = 3.3 V)

Table 46. DRAM pads

Name

Voltage

Used For

Notes1

NOTES:

1 All pads can be configured to support LPDDR half strength, LPDDR full strength, DDR1, DDR2 half

strength, DDR2 full strength, and SDR.

DRAM ACC

1.62 V–3.6 V

I/O

Bidirectional DDR pad

DRAM CLK

1.62 V–3.6 V

Output only differential clock driver pad

DRAM DQ

1.62 V–3.6 V

I/O

Bidirectional DDR pad with integrated ODT

Table 47. Mode configuration for DRAM pads

Configuration1

NOTES:

1 Configuration is selected in the corresponding PCR registers of the SIUL.

Mode

000

1.8 V LPDDR Half Strength

001

1.8 V LPDDR Full Strength

010

1.8 V DDR2 Half Strength

011

2.5 V DDR

100

Not supported

101

Not supported

110

1.8 V DDR2 Full Strength

111

SDR

Table 48. DRAM pads DC electrical specifications (VDD_HV_DRAM = 3.3 V)

No.

Symbol

Parameter

Condition

Min

Max

Unit

1VDD_HV_DRAM

SR I/O supply voltage

—3.0

3.6

VDD_HV_DRAM_VREF CC Input reference

voltage

—1.3

1.7

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