MPC859T datasheet(10/96 Pages) FREESCALE

10 / 96 page

MPC866/MPC859 Hardware Specifications, Rev. 2

Freescale Semiconductor

Power Dissipation

Table 5 shows power dissipation information. The modes are 1:1, where CPU and bus speeds are equal, and 2:1

mode, where CPU frequency is twice the bus speed.

DC Characteristics

Table 6 shows the DC electrical characteristics for the MPC866/859.

Table 5. Power Dissipation (PD)

Die Revision

Bus Mode

CPU

Frequency

Typical 1

Typical power dissipation at VDDL and VDDSYN is at 1.8 V. and VDDH is at 3.3 V.

Maximum 2

Maximum power dissipation at VDDL and VDDSYN is at 1.9 V, and VDDH is at 3.465 V.

NOTE

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.

Unit

1:1

50 MHz

110

140

66 MHz

150

180

2:1

66 MHz

140

160

80 MHz

170

200

100 MHz

210

250

133 MHz

260

320

Table 6. DC Electrical Specifications

Characteristic

Symbol

Min

Max

Unit

Operating voltage

VDDL (core)

1.7

1.9

VDDH (I/O)

3.135

3.465

VDDSYN 1

1.7

1.9

Difference between

VDDL to VDDSYN

—

100

Input high voltage (all inputs except EXTAL and

EXTCLK) 2

VIH

2.0

3.465

MPC859T Datasheet(PDF) 10 Page - Freescale Semiconductor, Inc

MPC859T Datasheet(HTML) 10 Page - Freescale Semiconductor, Inc

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