MPC852T datasheet(8/80 Pages) FREESCALE

8 / 80 page

MPC852T Hardware Specifications, Rev. 3.1

Freescale Semiconductor

Thermal Calculation and Measurement

For the following discussions, PD= (VDDL x IDDL) + PI/O, where PI/O is the power dissipation of the I/O drivers.

NOTE

The VDDSYN power dissipation is negligible.

7.1 Estimation with Junction-to-Ambient Thermal Resistance

An estimation of the chip junction temperature, TJ, in °C can be obtained from the equation:

TJ = TA +(R JA x PD)

where:

TA = ambient temperature ºC

R JA = package junction-to-ambient thermal resistance (ºC/W)

PD = power dissipation in package

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 3

IOL = 5.3 mA 4

IOL = 7.0 mA (Txd1/pa14, txd2/pa12)

IOL = 8.9 mA (TS, TA, TEA, BI, BB,

HRESET, SRESET)

VOL

—

0.5

The PA[0:3], PA[8:11], PB15, PB[24:25]; PB[28:31], PC[4:7], PC[12:13], PC15, PD[3:15], TDI, TDO,

TCK, TRST, TMS, MII_TXEN, MII_MDIO are 5 V-tolerant pins.

Input capacitance is periodically sampled.

A(0:31), TSIZ0/REG, TSIZ1, D(0:31), DP(0:3)/IRQ(3:6), RD/WR, BURST, RSV/IRQ2,

IWP(0:1)/VFLS(0:1), RXD3/PA11, TXD3/PA10, RXD4/PA9, TXD4/PA8, TIN3/BRGO3/CLK5/PA3,

BRGCLK2/TOUT3/CLK6/PA2, TIN4/BRGO4/CLK7/PA1, TOUT4/CLK8/PA0, SPISEL/PB31,

SPICLK/PB30, SPIMOSI/PB29, BRGO4/SPIMISO/PB28, SMTXD1/PB25, SMRXD1/PB24,

BRGO3/PB15, RTS1/DREQ0/PC15, RTS3/PC13, RTS4/PC12, CTS3/PC7, CD3/PC6,

CTS4/SDACK1/PC5, CD4/PC4, MII-RXD3/PD15, MII-RXD2/PD14, MII-RXD1/PD13, MII-MDC/PD12,

MII-TXERR/RXD3/PD11, MII-RX0/TXD3/PD10, MII-TXD0/RXD4/PD9, MII-RXCLK/TXD4/PD8,

MII-TXD3/PD5, MII-RXDV/RTS4/PD6, MII-RXERR/RTS3/PD7, MII-TXD2/REJECT3/PD4,

MII-TXD1/REJECT4/PD3, MII_CRS, MII_MDIO, MII_TXEN, MII_COL

BDIP/GPL_B(5), BR, BG, FRZ/IRQ6, CS(0:5), CS(6), CS(7), WE0/BS_B0/IORD, WE1/BS_B1/IOWR,

WE2/BS_B2/PCOE, WE3/ BS_B3/PCWE, BS_A(0:3), GPL_A0/GPL_B0, OE/GPL_A1/GPL_B1,

GPL_A(2:3)/GPL_B(2:3)/CS(2:3), UPWAITA/GPL_A4, GPL_A5, ALE_A, CE1_A, CE2_A, DSCK,

OP(0:1), OP2/MODCK1/STS, OP3/MODCK2/DSDO, BADDR(28:30)

Table 5. DC Electrical Specifications (continued)

Characteristic

Symbol

Min

Max

Unit

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