MPC875 datasheet(10/84 Pages) FREESCALE

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MPC875/MPC870 Hardware Specifications, Rev. 3.0

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Freescale Semiconductor

DC Characteristics

Table 6 provides the DC electrical characteristics for the MPC875/870.

2 Maximum power dissipation at V

DDL = VDDSYN = 1.9 V, and VDDH is at 3.5 V.

NOTE

The values in Table 5 represent VDDL-based power dissipation and do not

include I/O power dissipation over VDDH. I/O power dissipation varies

widely by application due to buffer current, depending on external

circuitry.

The VDDSYN power dissipation is negligible.

Table 6. DC Electrical Specifications

Characteristic

Symbol

Min

Max

Unit

Operating voltage

VDDH (I/O)

3.135

3.465

VDDL (Core)

1.7

1.9

VDDSYN

1 The difference between V

DDL and VDDSYN cannot be more than 100 mV.

1.7

1.9

Difference

between

VDDL and

VDDSYN

—

100

Input high voltage (all inputs except EXTAL and EXTCLK) 2

2 The signals PA[0:15], PB[14:31], PC[4:15], PD[3:15], PE(14:31), TDI, TDO, TCK, TRST, TMS, MII1_TXEN, MII_MDIO

are 5-V tolerant. The minimum voltage is still 2.0 V.

VIH

2.0

3.465

Input low voltage 3

3 V

IL(max) for the I

2C interface is 0.8 V rather than the 1.5 V as specified in the I2C standard.

VIL

GND

0.8

EXTAL, EXTCLK input high voltage

VIHC

0.7

× V

DDH

VDDH

Input leakage current, Vin = 5.5 V (except TMS, TRST, DSCK and

DSDI pins) for 5-V tolerant pins 1

Iin

—

100

µA

Input leakage current, Vin = VDDH (except TMS, TRST, DSCK, and

DSDI)

IIn

—10

µA

Input leakage current, Vin = 0 V (except TMS, TRST, DSCK and DSDI

pins)

IIn

—10

µA

Input capacitance 4

Cin

—20

Output high voltage, IOH = –2.0 mA, VDDH = 3.0 V

except XTAL and open-drain pins

VOH

2.4

—

Output low voltage

IOL = 2.0 mA (CLKOUT)

IOL = 3.2 mA 5

IOL = 5.3 mA 6

IOL = 7.0 mA (TXD1/PA14, TXD2/PA12)

IOL = 8.9 mA (TS, TA, TEA, BI, BB, HRESET, SRESET)

VOL

—0.5

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