MPC7410 datasheet(9/56 Pages) FREESCALE

9 / 56 page

MPC7410 RISC Microprocessor Hardware Specifications, Rev. 6.1

Freescale Semiconductor

Electrical and Thermal Characteristics

Table 3 provides the recommended operating conditions for the MPC7410.

Table 2. Input Threshold Voltage Setting

BVSEL Signal 3

Processor Bus Input

Threshold is Relative to:

L2VSEL Signal 3

L2 Bus Input Threshold is

Relative to:

Notes

1.8 V

HRESET

2.5 V

HRESET

2.5 V

1, 2

3.3 V

2.5 V

1, 4, 5

¬HRESET

3.3 V

¬HRESET

Not Supported

Notes:

1. Caution: The input threshold selection must agree with the OVDD/L2OVDD voltages supplied.

2. To select the 2.5-V threshold option, BVSEL and/or L2VSEL should be tied to HRESET so that the two signals

change state together. This is the preferred method for selecting this mode of operation.

3. To overcome the internal pull-up resistance, a pull-down resistance less than 250

Ω should be used.

4. Default voltage setting if left unconnected (internal pulled-up). MPC7410RX

nnnLE (Rev 1.4) and later only.

Previous revisions do not support 3.3 V OVDD; the default voltage setting if left unconnected is 2.5 V.

5. M

xx7410xxnnnLE (Rev. 1.4) and later only. Previous revisions do not support 3.3 V OVDD; having BVSEL = 1 selects

the 2.5-V threshold.

6. M

xx7410xxnnnLE (Rev. 1.4) and later only. Previous revisions do not support BVSEL = ¬HRESET. (¬HRESET is

the inverse of HRESET.)

MPC7410 Arkusz danych(PDF) 9 Page - Freescale Semiconductor, Inc